Evidence from Satellite Data for Export phenomena
|
|
- Abraham Golden
- 5 years ago
- Views:
Transcription
1 Evidence from Satellite Data for Export phenomena A contribution to subproject ESPORT-E2 T. Wagner, S. Beirle, C. Frankenberg, C. v. Friedeburg, M. Grzegorski, J. Hollwedel, S. Kühl, M. F. A. Khokhar, S. Kraus, S. Shangavi, W. Wilms-Grabe, M. Wenig, U. Platt Institut für Umweltphysik, University of Heidelberg, INF 229, D Heidelberg, Germany 1. Summary The study investigates the potential of satellite observations of atmospheric trace gases for the investigation of export phenomena, in particular intercontinental transport. Atmospheric trace gases are measured by various satellite instruments in different wavelength ranges. Especially nadir viewing instruments operating in the UV/vis (and near IR) spectral range are sufficiently sensitive even for trace gases located in the troposphere (see e.g. Fishman et al., 1986). It was recently demonstrated that several trace gases located even in the planetary boundary layer (e.g. NO 2, HCHO, SO 2, BrO, H 2 O) can be measured by such instruments, like e.g. the Global Ozone Monitoring Experiment (GOME) aboard ERS-2 (ESA, 1995). The analysis of tropospheric trace gases from GOME is described in several publications, see e.g. Wagner and Platt (1998), Richter et al. (1998), Eisinger and Burrows (1998), Leue et al. (2001), Velders et al. (2001), Wagner et al. (2001), Richter and Burrows (2002). General description of tropospheric trace gas measurements by GOME can be found in Burrows et al. (2000), Wagner et al. (2002a). An overview on tropospheric satellite data is also given on the TROPOSAT homepage: On March, 1, 2002, the Scanning Imaging Absorption SpectroMeter for Atmospheric ChartographY (SCIAMACHY) was launched aboard ENVISAT (see e.g. Bovensmann et al., 1999). In addition to nadir observations it also performs measurements of the atmosphere in limb viewing geometry. Compared to GOME the SCIAMACHY measuring modes enable several important advantages for the measurement of tropospheric trace gases: a) The spatial resolution is significantly better (typically 30x60km² and at best 30x15km² compared to 40x320km²). b) From the combination of limb and nadir observations the tropospheric column density can be directly inferred for trace gases which are located both in the stratosphere and troposphere. c) From the additional near IR channels important greenhouse gases like CH 4, N 2 O and CO 2 (also CO) can be retrieved. In this project the general properties of satellite observations of tropospheric trace gases are discussed. The methodology is described in some detail for DOAS observations made by GOME and SCIAMACHY. In the following parts an overview is given on observations of several tropospheric trace gases by GOME. Examples for intercontinental transport are presented in case studies and from averaging global satellite data over several years. Finally the potential of satellite observations for the discrimination of different sources is highlighted. 2. General characteristics of satellite observations of atmospheric trace gases Compared to observations made from ground, balloon or aircraft, satellite observations of atmospheric trace gases have several important advantages: a) Satellites have nearly global coverage. Thus they allow e.g. measurements in remote regions. In addition, it is possible to measure and directly compare trace gases in different
2 regions of the world. Often it is also possible to discriminate between temporal and spatial variability of atmospheric trace gases. b) Satellite instruments typically yield large data sets. Thus, extended statistical investigations can be performed. c) Satellite instruments are nearly not affected by mechanical influences. Besides instrumental degradation they are thus usually very stable. d) Because of their special operation conditions specific calibration measurements, e.g. the observation of direct sun light spectra can be performed. In spite of these advantages it should be noted that they are also subject to systematic shortcomings (see also below). In particular they can not replace observations from other platforms. Best use of satellite measurements can be made in conjunction with observations from other platforms. Important limitations of satellite observations of tropospheric trace gases are: a) The spatial and temporal coverage is restricted. Global coverage for polar orbiting satellite instruments like GOME and SCIAMACHY is reached after 3 and 6 days, respectively. Polewards of about 60 full spatial coverage is already reached after 1 day for GOME and 2 days for SCIAMACHY. For possible future geostationary platforms (like GEOTROPE, see Burrows et al., 2002) the temporal coverage can be much better (about every 30 min) while the spatial coverage is limited to only a part of the whole globe. b) Compared to imaging satellite instruments (like weather satellites) the spatial resolution is poor. The typical ground pixel size of GOME is 40x320 km², for SCIAMACHY it is 30x60 km². In a special mode, however, SCIAMACHY can have ground pixels of only 30x15 km². c) Typically no altitude information on tropospheric trace gases is inferred from satellite observations. The standard satellite product is thus the tropospheric vertical column density, the vertically integrated trace gas concentration. However, some techniques allow to derive a limited amount of information on the vertical distribution, e.g. cloud slicing (Ziemke et al., 1998) or the combination of observations in different wavelength ranges (Richter and Burrows, 2002). d) Tropospheric trace gas observations from space have typically large uncertainties because of several reasons. First the influence of multiple scattering is relatively large, in particular also the influence of aerosols and the ground albedo. In addition, clouds strongly affect tropospheric observations from satellite instruments and contribute the dominant source of error for most single measurements (Wagner et al., 2002b). 3. DOAS analysis for GOME and SCIAMACHY In this chapter the DOAS analysis is described for GOME observations. This analysis, however, can be directly transferred to the nadir observations of SCIAMACHY. From the raw spectra monitored by GOME the absorptions of each of the UV/vis absorbing atmospheric trace gases is determined using differential optical absorption spectroscopy (DOAS) (Platt, 1994). In brief, the measured spectra are modelled with a non-linear fitting routine that suitably weights the known absorption spectra of atmospheric trace gases and a solar background spectrum. Also, the influence of atmospheric Raman scattering (the socalled Ring effect) is considered (Grainger and Ring, 1961; Solomon et al. 1987; Bussemer, 1993). Contributions of atmospheric broadband extinction processes (e.g., Rayleigh, and Mie scattering) are removed from the spectrum by fitting a polynomial. In Fig. 1 the wavelength ranges are indicated where the different atmospheric trace gases are analysed. For each species spectral regions are selected where the most prominent differential absorption structures appear or/and the smallest spectral interferences with other species are expected. In Fig. 1 also
3 the results of the spectral analysis for different trace gases are presented (small plots). The yellow lines indicate the absorption spectra of the respective trace gas scaled to the absorptions determined in the GOME spectrum (blue lines). From the inferred absorption, and the knowledge of the absorption cross section, the trace gas slant column density (the integrated trace gas concentration along the absorption path) is calculated. O 4 O 3 UV OClO H 2 O HCHO O 2 Intensity [arbitrary units 1E+16 1E+14 1E+12 1E+10 1E+08 Satellite group: Wavelength [nm] SO 2 NO 2 BrO O 3 vis Figure 1: Selection of wavelength ranges for the spectral analysis of the different trace gases analysed from GOME spectra. The thick lines indicate the absorption spectra of the trace gases scaled to the absorptions determined in the GOME spectrum (thin lines). AMF albedo 0.8 albedo 0.0 geometric AMF tropospheric AMF stratospheric AMF SZA [ ] Figure 2: Influence of the ground albedo on the sensitivity (expressed as AMF, see text) for trace gases located in the in the stratosphere and the lower troposphere (in the boundary layer). In contrast to the stratospheric AMF, the tropospheric AMF depends strongly on the ground albedo (see also Wagner et al., 2001). The light which reaches the instrument is either reflected from the Earth s surface or scattered back from the atmosphere. Therefore the determination of the vertical column density (VCD, the vertically integrated concentration) from the measured SCD requires radiative transport
4 modelling. The results of these calculations are usually expressed as air mass factors (AMF), where AMF = SCD / VCD. We calculate AMFs using a Monte Carlo RTM including spherical geometry and multiple scattering (Marquard et al., 2000). In Figure 2, examples of AMFs for stratospheric and tropospheric profiles are displayed. 4. Observations of export phenomena In these chapter examples are given for the measurement of export phenomena from space. 4.1 Single episodes The identification of single episodes of export phenomena is complicated by two major factors: the limited temporal sampling frequency and the influence of clouds. Especially in the case of extended cloud coverage tropospheric trace gases below the cloud layer are not visible. Thus it is important to monitor the appearance of clouds to estimate their possible impact on the tropospheric trace gas measurements. In cases of broken clouds it will even be possible to correct the cloud influence (see Wagner et al., 2002b). Fig. 3 Case study of transport of anthropogenic NO 2 in the easterly outflow of South Africa. In the left part tropospheric NO 2 VCDs derived from GOME observations are displayed. Grey parts of the GOME orbits indicate large cloud fractions shielding the atmosphere below. In the right part model simulations using the FLEXPART model are displayed (Stohl et al. 1998). Similar structures can be found in both data sets (see also Wenig et al. 2002).
5 To compensate for the limited sampling frequency satellite observations can be compared to model results. If the spatial and temporal patterns agree it can be concluded that both, the satellite observations and the model studies have identified export phenomena (see Figure 3). In some cases the signals of export phenomena in the satellite data are very strong. Then transport over large distances can be directly identified from satellite data (see Fig. 4). Nyamuragira Fig. 4 Three day composite of GOME SO 2 observations over Africa (5.-7. December 1996). The SO 2 plume from the eruption of the Nyamuragira Volcano is transported hundreds of kilometres in westerly directions (see also Eisinger et al., 1998). 4.2 General transport patterns in long time averages Fig. 5 Six-years global average of the tropospheric NO 2 VCD measured by GOME (see also Beirle et al., this issue). Different sources of tropospheric NO 2 and also continental outflow patterns can be identified in this map.
6 For GOME observations already several years of data have been accumulated. Averaging of these large data sets permits to visualize transport patterns which might be to weak for a direct detection. In Figure 5 the 6-years average of the tropospheric NO 2 VCD is displayed (Beirle et al., 2002). In the mid latitudes transport in easterly direction can be identified for the outflow of several continents. In the Tropics transport patterns indicate transport in westerly direction. 5 Identification of different sources 5.1 Single episodes Satellite observations allow to identify different sources of tropospheric trace gases. In many cases the sources can be directly identified for single episodes. This is in particular the case for the anthropogenic emission of NO 2 (see e.g. Fig. 3). Another example is shown in Fig. 6. Enhanced values of HCHO appear over Borneo during the heavy biomass burning in September High values were also found for tropospheric NO 2. -1e17 SCD HCHO [molec/cm²] 5e17 Fig. 6 Tropospheric NO 2 and HCHO measured by GOME on 27 September 1997 over Borneo. During that period of time heavy biomass burning took place. 5.2 Correlation studies Fig. 7 Correlation of tropospheric NO 2 VCDs with satellite observations of the brightness of the night side of the earth (This correlation was investigated together with Franz Rohrer, FZ Jülich, Germany, personal communication). Low NO 2 VCDs only appear for dark areas of the world; for bright areas always high tropospheric NO 2 VCDs are found.
7 In many cases different sources contribute simultaneously to the observed trace gas absorptions. From the correlation of tropospheric GOME observations with other data sets it is possible to discriminate different sources. In addition, correlation studies allow to quantify the strength of these sources. It was demonstrated by Beirle et al. (this issue) that especially satellite sensors are well suited for such correlation studies. One example of such a correlation is shown in Fig. 7. The light density observed from the night side of the earth was correlated to the tropospheric NO 2 data from GOME. High values of tropospheric NO 2 only appear for bright areas of the world (Franz Rohrer, FZ Jülich, Germany, personal communication). 5 Conclusion and outlook Satellite observations have a great potential for the investigation of export phenomena. UV/vis nadir looking instruments (like GOME and SCIAMACHY), in particular, have the capability to measure several tropospheric trace gases like NO 2, BrO, SO 2, HCHO, H 2 O, O 2, and O 4. The good spatial and temporal coverage of satellite observations allows to identify single episodes of long range transport. From the extended data sets of satellite instruments also general transport patterns, e.g. the outflow of tropospheric NO 2 from the continents can be visualised. A promising possibility is also the correlation of the trace gas observations from satellites with independent satellite observations of other parameters, like. e.g. fire counts or lightning frequency (see Beirle et al., 2002). This method allows to identify different sources and to quantify their strengths. The SCIAMACHY instrument (launched on ENVISAT in March 2002) will continue the tropospheric trace gas measurements of GOME with improved quality. For SCIAMACHY the ground pixel size is much smaller compared to that of GOME. In addition, the combination of limb and nadir measurements allows to directly determined the tropospheric column. This will yield improved tropospheric data e.g. also for O 3 which is mainly located in the stratosphere. Furthermore, from the near IR channels of SCIAMACHY several important greenhouse gases like CO 2, N 2 O and CH 4 can be derived. References Beirle. S. J. Hollwedel, S. Kraus, T. Wagner, M. Wenig, W. Walburga Wilms-Grabe, U. Platt: Estimation of NO2 emissions from lightning and biomass burning: A case study using tropospheric NO2-data deriverd from GOME, Air Pollution 2002, WIT Press, 10, (2002) Bovensmann, H., J. P. Burrows, M. Buchwitz, J. Frerick, S. Noël, V. V. Rozanov, K. V. Chance, and A. H. P. Goede, SCIAMACHY - Mission objectives and measurement modes, J. Atmos. Sci., 56, (1999), Bussemer, M., Der Ring-Effekt: Ursachen und Einfluß auf die spektroskopische Messung stratosphärischer Spurenstoffe, diploma thesis, Univ. of Heidelberg, Heidelberg, Germany (1993). Burrows, J.P., A. Richter, M. Weber, K.-U. Eichmann, K. Bramstedt, A. Ladstaetter-Weissenmayer, F. Wittrock, M. Eisinger, and L. Hild, Satellite observations of tropospheric and stratospheric gases, Chemistry and Radiation Changes in the Ozone Layer, Kluwer Academic Publisher, eds. C. Zerefos et al. (2000) Burrows, J.P., G. Bergametti, H. Bovensmann, J.M. Flaud, J. Orphal, S. Noel, P. Monks, G. Corlett, A.P. Goede, T. Von Clarmann, T. Steck, H. Fisher and F. Friedl-Vallon, The Geostationary Tropospheric Pollution Explorer (GeoTROPE) mission: Objectives and Requirements, 34th COSPAR Scientific Assembly, October 2002, Houston (USA).
8 M. Eisinger and J.P. Burrows, Tropospheric sulfur dioxide observed by the ERS-2 GOME instrument, Geophys. Res. Lett., 25, (1998) ESA Publication Division (SP-1182), GOME, Global Ozone Monitoring Experiment, users manual, edited by F. Bednarz, European Space Research and Technology Centre (ESTEC), Frascati, Italy, (1995). Fishman J., P. Minnis, H. Reichle, Use of satellite data to study tropospheric ozone on the tropics, J. Geophysical Research, 14, (1986), Grainger, J.F., and J. Ring, Anomalous Fraunhofer line profiles, Nature, 193, (1962) 762. Leue, C., M. Wenig, T. Wagner, U. Platt, and B. Jähne, Quantitative analysis of NO x emissions from GOME satellite image sequences, J. Geophys. Res.,106, (2001) Marquard, L.C., T. Wagner, and U. Platt, Improved Air Mass Factor Concepts for Scattered Radiation Differential Optical Absorption Spectroscopy of Atmospheric Species, J. Geophys. Res., 105, (2000) Platt, U., Differential optical absorption spectroscopy (DOAS), in Air Monitoring by Spectroscopic Techniques, Chem. Anal. Ser., 127, edited by M. W. Sigrist, John Wiley, New York, (1994), Richter, A., F. Wittrock, M. Eisinger and J.P. Burrows, GOME Observations of tropospheric BrO in northern hemispheric spring and summer 1997, Geophys. Res. Lett., 25, (1998) Richter, A., and Burrows, J.P., Retrieval of Tropospheric NO 2 from GOME Measurements, Adv. Space Res., 29 (11), (2002) Solomon, S., A.L. Schmeltekopf, R.W. Sanders, On the interpretation of zenith sky absorption measurements, J. Geophys. Res., 92, (1987) Stohl, A., M. Hittenberger, and G. Wotawa, Validation of the Lagrangian particle dispersion model FLEXPART against large scale tracer experiments. Atmos. Environ. 24, (1998) Abstract Velders, Guus J.M., Claire Granier, Robert W. Portmann, Klaus Pfeilsticker, Mark Wenig, Thomas Wagner, Ulrich Platt, Andreas Richter, and John P. Burrows, Global tropospheric NO 2 column distributions: Comparing 3-D model calculations with GOME measurements, J. Geophys. Res., 106, (2001) 12, Wagner, T., and U. Platt, Satellite mapping of enhanced BrO concentrations in the troposphere, Nature, 395, (1998) ,. Wagner, T., C. Leue, M. Wenig, K. Pfeilsticker, U. Platt, Spatial and temporal distribution of enhanced boundary layer BrO concentrations measured by the GOME instrument aboard ERS-2, J. Geophys. Res., 106, (2001) 24, Wagner, T., S. Beirle, C. v.friedeburg, J. Hollwedel, S. Kraus, M. Wenig, W. Wilms-Grabe, S. Kühl, U. Platt, Monitoring of trace gas emissions from space: tropospheric abundances of BrO, NO 2, H 2 CO, SO 2, H 2 O, O 2, and O 4 as measured by GOME, Air Pollution 2002, WIT Press, 10, (2002a) Wagner, T., A. Richter, C. von Friedeburg, M. Wenig, and U. Platt, Case Studies for the Investigation of Cloud Sensitive Parameters as Measured by GOME, Final Report to the EUROTRAC subproject TROPOSAT (2002b). Wenig, M., N. Spichtinger, A. Stohl, G. Held, S. Beirle, T. Wagner, B. Jähne, and U. Platt, Intercontinental Transport of Nitrogen Oxide Pollution Plumes, accepted by Atmospheric Chemistry and Physics Discussions, (November 2002). Ziemke J.R., S. Chandra, and P.K. Bhartia, Two new methods for deriving tropospheric column ozone from TOMS measurements: Assimilated UARS MLS/HALOE and convective-cloud differential techniques, J. Geophys. Res., 103, (1998),
Monitoring of trace gas emissions from space: tropospheric abundances of BrO, NO 2, H 2 CO, SO 2, H 2 O, O 2, and O 4 as measured by GOME
Monitoring of trace gas emissions from space: tropospheric abundances of BrO, NO 2, H 2 CO, SO 2, H 2 O, O 2, and O 4 as measured by GOME T. Wagner, S. Beirle, C. v.friedeburg, J. Hollwedel, S. Kraus,
More informationRETRIEVAL OF STRATOSPHERIC TRACE GASES FROM SCIAMACHY LIMB MEASUREMENTS
RETRIEVAL OF STRATOSPHERIC TRACE GASES FROM SCIAMACHY LIMB MEASUREMENTS Jānis Puķīte (1,2), Sven Kühl (1), Tim Deutschmann (1), Walburga Wilms-Grabe (1), Christoph Friedeburg (3), Ulrich Platt (1), and
More informationLong term DOAS measurements at Kiruna
Long term DOAS measurements at Kiruna T. Wagner, U. Frieß, K. Pfeilsticker, U. Platt, University of Heidelberg C. F. Enell, A. Steen, Institute for Space Physics, IRF, Kiruna 1. Introduction Since 1989
More informationLongtime Satelite Observation of Atmospheric Trace Gases
Longtime Satelite Observation of Atmospheric Trace Gases T. Wagner, S. Beirle, C. v. Friedeburg, M. Grzegorski, J. Hollwedel, S. Kühl, S. Kraus, W. Wilms-Grabe, M. Wenig, U. Platt Institut für Umweltphysik,
More information7.5-year global trends in GOME cloud cover and humidity - a signal of climate change? Institut für Umweltphysik, Uni-Heidelberg, Germany
7.5-year global trends in GOME cloud cover and humidity - a signal of climate change? T. Wagner, S. Beirle, M. Grzegorski, S. Sanghavi, U. Platt Institut für Umweltphysik, Uni-Heidelberg, Germany The Greenhouse
More informationAlgorithm Document HEIDOSCILI
lgorithm Document for the retrieval of OClO, BrO and NO 2 vertical profiles from SCIMCHY limb measurements by HEIDOSCILI (Heidelberg DOS of SCIMCHY Limb measurements) uthors: Sven Kühl, Janis Pukite, Thomas
More informationWATER VAPOUR RETRIEVAL FROM GOME DATA INCLUDING CLOUDY SCENES
WATER VAPOUR RETRIEVAL FROM GOME DATA INCLUDING CLOUDY SCENES S. Noël, H. Bovensmann, J. P. Burrows Institute of Environmental Physics, University of Bremen, FB 1, P. O. Box 33 4 4, D 28334 Bremen, Germany
More informationRetrieval and Monitoring of atmospheric trace gas concentrations in nadir and limb geometry using the space-borne SCIAMACHY instrument
Retrieval and Monitoring of atmospheric trace gas concentrations in nadir and limb geometry using the space-borne SCIAMACHY instrument B. Sierk, A. Richter, A. Rozanov, Ch. von Savigny, A.M. Schmoltner,
More informationGlobal long term data sets of the atmospheric H 2 O VCD and of cloud properties derived from GOME and SCIAMACHY
Global long term data sets of the atmospheric H 2 O VCD and of cloud properties derived from GOME and SCIAMACHY Summary A contribution to subproject ACCENT-TROPOSAT-2 (AT2), Task Group 1 Thomas Wagner,
More informationAtmospheric Measurements from Space
Atmospheric Measurements from Space MPI Mainz Germany Thomas Wagner Satellite Group MPI Mainz Part 1: Basics Break Part 2: Applications Part 1: Basics of satellite remote sensing Why atmospheric satellite
More informationTrace gases, aerosols & clouds analysed from GOME, SCIAMACHY and GOME-2. Recommendations for TROPOMI. Thomas Wagner. Satellite Group Mainz Heidelberg
MPI Mainz Germany Trace gases, aerosols & clouds analysed from GOME, SCIAMACHY and GOME-2. Recommendations for TROPOMI. Thomas Wagner Satellite Group Mainz Heidelberg with contributions from: Uni- Heidelberg
More informationBIRA-IASB, Brussels, Belgium: (2) KNMI, De Bilt, Netherlands.
Tropospheric CH 2 O Observations from Satellites: Error Budget Analysis of 12 Years of Consistent Retrieval from GOME and SCIAMACHY Measurements. A contribution to ACCENT-TROPOSAT-2, Task Group 1 I. De
More informationVERTICAL PROFILES OF BrO AND OClO MEASURED BY SCIAMACHY
VERTICAL PROFILES OF BrO AND OClO MEASURED BY SCIAMACHY Sven Kühl 1), Janis Pukite 1), Tim Deutschmann 2), Marcel Dorf 2), Ulrich Platt 2) and Thomas Wagner 1) 1) Max Planck Institut für Chemie, Mainz,
More informationCHARACTERIZATION OF VEGETATION TYPE USING DOAS SATELLITE RETRIEVALS
CHARACTERIZATION OF VEGETATION TYPE USING DOAS SATELLITE RETRIEVALS Thomas Wagner, Steffen Beirle, Michael Grzegorski and Ulrich Platt Institut für Umweltphysik, University of Heidelberg, Germany ABSTRACT.
More informationUV-visible observations of atmospheric O 4 absorptions using direct moonlight and zenith-scattered sunlight for clear-sky and cloudy sky conditions
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 107, NO. D20, 4424, doi:10.1029/2001jd001026, 2002 UV-visible observations of atmospheric O 4 absorptions using direct moonlight and zenith-scattered sunlight for
More informationRelation of atmospheric humidity and cloud properties to surface-near temperatures derived from GOME satellite observations
Relation of atmospheric humidity and cloud properties to surface-near temperatures derived from GOME satellite observations Thomas Wagner 1, Steffen Beirle 1, Tim Deutschmann 2, Michael Grzegorski 2, Ulrich
More informationGeoFIS (Geostationary
GeoFIS (Geostationary Fourier Imaging Spectrometer) ) as part of the GeoTROPE (Geostationary Tropospheric Pollution Explorer) mission: scientific objectives and capabilities J.-M. Flaud, J. Orphal, G.
More informationDOAS UV/VIS minor trace gases from SCIAMACHY
DOAS UV/VIS minor trace gases from SCIAMACHY Rüdiger de Beek, Andreas Richter, John P. Burrows Inst. of Environm. Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen, Germany, Email: ruediger.de_beek@iup.physik.uni-bremen.de
More informationCURRENT RETRIEVAL AND INTER-COMPARISONS RESULTS OF SCIAMACHY NIGHTTIME NO X
CURRENT RETRIEVAL AND INTER-COMPARISONS RESULTS OF SCIAMACHY NIGHTTIME NO X L. K. Amekudzi, K. Bramstedt, A. Bracher, A. Rozanov, H. Bovensmann, and J. P. Burrows Institute of Environmental Physics and
More informationUV-Vis Nadir Retrievals
SCIAMACHY book UV-Vis Nadir Retrievals Michel Van Roozendael, BIRA-IASB ATC14, 27-31 October, Jülich, Germany Introduction Content Fundamentals of the DOAS method UV-Vis retrievals: from simplified to
More informationSTRATOSPHERIC OClO AND BrO PROFILES FROM SCIAMACHY LIMB MEASUREMENTS
STRATOSPHERIC OClO AND BrO PROFILES FROM SCIAMACHY LIMB MEASUREMENTS Sven Kühl 1), Janis Pukite 1), Tim Deutschmann 2), Marcel Dorf 2), Francois Hendrick 3), Ulrich Platt 2) and Thomas Wagner 1) 1) Max
More informationSatellite remote sensing of NO 2
Satellite remote sensing of NO 2 views from outside Steffen Beirle Satellite Group MPI Mainz UV-vis satellite instruments Current nadir UV/vis satellite instruments: GOME 1/2, SCIAMACHY, OMI Nadir: probing
More informationSupport to H 2 O column retrieval algorithms for GOME-2
Support to H 2 O column retrieval algorithms for GOME-2 O3M-SAF Visiting Scientist Activity Final Report 18.09.2011 Thomas Wagner, Kornelia Mies MPI für Chemie Joh.-Joachim-Becher-Weg 27 D-55128 Mainz
More informationSCIAMACHY SOLAR OCCULTATION: OZONE AND NO 2 PROFILES
SCIAMACHY SOLAR OCCULTATION: OZONE AND NO 2 PROFILES Klaus Bramstedt, Astrid Bracher, Jerome Meyer, Alexej Rozanov, Heinrich Bovensmann, and John P. Burrows Inst. of Environmental Physics, University of
More informationLongtime Satelite Observation of Atmospheric Trace Gases
Longtime Satelite Observation of Atmospheric Trace Gases T. Wagner, S. Beirle, C. v. Friedeburg, M. Grzegorski, J. Hollwedel, S. Kühl, S. Kraus, W. Wilms-Grabe, M. Wenig, U. Platt Institut für Umweltphysik,
More informationDiffuser plate spectral structures and their influence on GOME slant columns
Diffuser plate spectral structures and their influence on GOME slant columns A. Richter 1 and T. Wagner 2 1 Insitute of Environmental Physics, University of Bremen 2 Insitute of Environmental Physics,
More informationLong-Term Time Series of Water Vapour Total Columns from GOME, SCIAMACHY and GOME-2
Graphics: ESA Graphics: ESA Graphics: ESA Long-Term Time Series of Water Vapour Total Columns from GOME, SCIAMACHY and GOME-2 S. Noël, S. Mieruch, H. Bovensmann, J. P. Burrows Institute of Environmental
More informationSCIAMACHY VALIDATION USING THE AMAXDOAS INSTRUMENT
SCIAMACHY VALIDATION USING THE AMAXDOAS INSTRUMENT Klaus-Peter Heue (1), Steffen Beirle (1) Marco Bruns (2), John P. Burrows (2), Ulrich Platt (1), Irene Pundt (1), Andreas Richter (2), Thomas Wagner (1)
More informationTEN YEARS OF NO 2 COMPARISONS BETWEEN GROUND-BASED SAOZ AND SATELLITE INSTRUMENTS (GOME, SCIAMACHY, OMI)
ABSTRACT TEN YEARS OF NO 2 COMPARISONS BETWEEN GROUND-BASED SAOZ AND SATELLITE INSTRUMENTS (GOME, SCIAMACHY, OMI) Dmitry Ionov (1), Florence Goutail (1), Jean-Pierre Pommereau (1), Ariane Bazureau (1),
More informationChapter 4 Nadir looking UV measurement. Part-I: Theory and algorithm
Chapter 4 Nadir looking UV measurement. Part-I: Theory and algorithm -Aerosol and tropospheric ozone retrieval method using continuous UV spectra- Atmospheric composition measurements from satellites are
More informationNitrogen oxides in the troposphere What have we learned from satellite measurements?
Eur. Phys. J. Conferences 1, 149 156 (2009) EDP Sciences, 2009 DOI: 10.1140/epjconf/e2009-00916-9 THE EUROPEAN PHYSICAL JOURNAL CONFERENCES Nitrogen oxides in the troposphere What have we learned from
More informationSCIAMACHY REFLECTANCE AND POLARISATION VALIDATION: SCIAMACHY VERSUS POLDER
SCIAMACHY REFLECTANCE AND POLARISATION VALIDATION: SCIAMACHY VERSUS POLDER L. G. Tilstra (1), P. Stammes (1) (1) Royal Netherlands Meteorological Institute (KNMI), P.O. Box 201, 3730 AE de Bilt, The Netherlands
More informationMONITORING NITROGEN OXIDES WITH SATELLITE INSTRUMENTS: HIGH RESOLUTION MAPS FROM GOME NARROW SWATH MODE AND SCIAMACHY
MONITORING NITROGEN OXIDES WITH SATELLITE INSTRUMENTS: HIGH RESOLUTION MAPS FROM GOME NARROW SWATH MODE AND SCIAMACHY S. Beirle, U. Platt and T. Wagner Institut für Umweltphysik (IUP), Im Neuenheimer Feld
More informationRemote Sensing of Atmospheric Trace Gases Udo Frieß Institute of Environmental Physics University of Heidelberg, Germany
Remote Sensing of Atmospheric Trace Gases Udo Frieß Institute of Environmental Physics University of Heidelberg, Germany CREATE Summer School 2013 Lecture B, Wednesday, July 17 Remote Sensing of Atmospheric
More informationK. Chance, R.J.D. Spun, and T.P. Kurosu. Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, MA USA ABSTRACT
Atmospheric Trace Gas Measurements from the European Space Agency's Global Ozone Monitoring Experiment K. Chance, R.J.D. Spun, and T.P. Kurosu Harvard-Smithsonian Center for Astrophysics Garden Street,
More informationSupplement of Cloud and aerosol classification for 2.5 years of MAX-DOAS observations in Wuxi (China) and comparison to independent data sets
Supplement of Atmos. Meas. Tech., 8, 5133 5156, 215 http://www.atmos-meas-tech.net/8/5133/215/ doi:1.5194/amt-8-5133-215-supplement Author(s) 215. CC Attribution 3. License. Supplement of Cloud and aerosol
More informationSimulation of UV-VIS observations
Simulation of UV-VIS observations Hitoshi Irie (JAMSTEC) Here we perform radiative transfer calculations for the UV-VIS region. In addition to radiance spectra at a geostationary (GEO) orbit, air mass
More informationTotal column density variations of ozone (O 3 ) in presence of different types of clouds
O 3 Total column density variations of ozone (O 3 ) in presence of different types of clouds G S Meena Indian Institute of Tropical Meteorology, Pashan, Pune 411 008, India. e-mail: gsm@tropmet.res.in
More informationBrO PROFILING FROM GROUND-BASED DOAS OBSERVATIONS: NEW TOOL FOR THE ENVISAT/SCIAMACHY VALIDATION
BrO PROFILING FROM GROUND-BASED DOAS OBSERVATIONS: NEW TOOL FOR THE ENVISAT/SCIAMACHY VALIDATION F. Hendrick (1), M. Van Roozendael (1), M. De Mazière (1), A. Richter (2), A. Rozanov (2), C. Sioris (3),
More informationAlgorithms/Results (SO 2 and ash) based on SCIAMACHY and GOME-2 measurements
ESA/EUMETSAT Workshop on Volcanic Ash Monitoring ESA/ESRIN, Frascati, 26-27 May 2010 Algorithms/Results (SO 2 and ash) based on SCIAMACHY and GOME-2 measurements Nicolas THEYS H. Brenot, J. van Gent and
More informationImproving S5P NO 2 retrievals
Institute of Environmental Physics and Remote Sensing IUP/IFE-UB Department 1 Physics/Electrical Engineering Improving S5P NO 2 retrievals ESA ATMOS 2015 Heraklion June 11, 2015 Andreas Richter, A. Hilboll,
More informationSCIAMACHY VALIDATION USING GROUND-BASED DOAS MEASUREMENTS OF THE UNIVERSITY OF BREMEN BREDOM NETWORK
SCIAMACHY VALIDATION USING GROUND-BASED DOAS MEASUREMENTS OF THE UNIVERSITY OF BREMEN BREDOM NETWORK A. Richter (1), D. Adukpo (1), S. Fietkau (1), A. Heckel (1), A. Ladstätter-Weißenmayer (1), A. Löwe
More informationSCIAMACHY limb measurements of NO 2, BrO and OClO. Retrieval of vertical profiles: Algorithm, first results, sensitivity and comparison studies
Available online at www.sciencedirect.com Advances in Space Research 42 (2008) 1747 1764 www.elsevier.com/locate/asr SCIAMACHY limb measurements of NO 2, BrO and OClO. Retrieval of vertical profiles: Algorithm,
More informationOverview on UV-Vis satellite work
Overview on UV-Vis satellite work Where we are and what possible directions are? M. Van Roozendael Belgian Institute for Space Aeronomy ACCENT AT-2 Follow up meeting, MPI Mainz, Germany, 22-23 June 2009
More informationMulti axis differential optical absorption spectroscopy (MAX-DOAS)
Atmos. Chem. Phys.,, 31, www.atmos-chem-phys.org/acp//31/ SRef-ID: 18-73/acp/--31 Atmospheric Chemistry and Physics Multi axis differential optical absorption spectroscopy (MAX-DOAS) G. Hönninger 1,*,
More informationInvestigation of the effects of horizontal gradients of trace gases, aerosols and clouds on the validation of tropospheric TROPOMI products (TROPGRAD)
Investigation of the effects of horizontal gradients of trace gases, aerosols and clouds on the validation of tropospheric TROPOMI products (TROPGRAD) T. Wagner, J. Remmers, S. Beirle, Y. Wang MPI for
More informationUsing GOME and SCIAMACHY NO 2 measurements to constrain emission inventories potential and limitations
Institute of Environmental Physics and Remote Sensing IUP/IFE-UB Department 1 Physics/Electrical Engineering TP-HTAP WMO Geneva, 25 January 2007 Using GOME and SCIAMACHY NO 2 measurements to constrain
More informationTropospheric NO 2 column densities deduced from zenith-sky DOAS measurements in Shanghai, China, and their application to satellite validation
Atmos. Chem. Phys., 9, 31 3, 9 www.atmos-chem-phys.net/9/31/9/ Author(s) 9. This work is distributed under the Creative Commons Attribution 3. License. Atmospheric Chemistry and Physics Tropospheric NO
More informationStratospheric aerosol profile retrieval from SCIAMACHY limb observations
Stratospheric aerosol profile retrieval from SCIAMACHY limb observations Yang Jingmei Zong Xuemei Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric
More informationAtmospheric carbon dioxide and methane from SCIAMACHY/ENVISAT
GEMS Final Assembly 2009, FZ Jülich, 31.3.-3.4.2009 Atmospheric carbon dioxide and methane from SCIAMACHY/ENVISAT Michael Buchwitz, O. Schneising, M. Reuter, H. Bovensmann, J. P. Burrows Institute of Environmental
More informationSATELLITE REMOTE SENSING OF ATMOSPHERIC SO 2 : VOLCANIC ERUPTIONS AND ANTHROPOGENIC EMISSIONS
SATELLITE REMOTE SENSING OF ATMOSPHERIC SO 2 : VOLCANIC ERUPTIONS AND ANTHROPOGENIC EMISSIONS Muhammad Fahim Khokhar, C. Frankenberg, J. Hollwedel, S. Beirle, S. Kühl, M. Grzegorski, W. Wilms-Grabe, U.
More informationSpectral surface albedo derived from GOME-2/Metop measurements
Spectral surface albedo derived from GOME-2/Metop measurements Bringfried Pflug* a, Diego Loyola b a DLR, Remote Sensing Technology Institute, Rutherfordstr. 2, 12489 Berlin, Germany; b DLR, Remote Sensing
More informationRemote Measurement of Tropospheric NO 2 by a Dual MAX-DOAS over Guangzhou During the 2008 PRD Campaign
Session h A&WMA International Specialty Conference, 10-14 May 2010, China Ih: Remote Sensing Technologies for Source Monitoring Remote Measurement of Tropospheric NO 2 by a Dual MAX- over Guangzhou During
More informationHighly resolved global distribution of tropospheric NO 2 using GOME narrow swath mode data
SRef-ID: 168-7324/acp/24-4-1913 Atmospheric Chemistry and Physics Highly resolved global distribution of tropospheric NO 2 using GOME narrow swath mode data S. Beirle 1, U. Platt 1, M. Wenig 2, and T.
More informationEnhanced monitoring of sulfur dioxide sources with hyperspectral UV sensors
Enhanced monitoring of sulfur dioxide sources with hyperspectral UV sensors Arlin Krueger* 1, Kai Yang 2, and Nickolay Krotkov 2 ; 1 Joint Center for Earth Sciences Technology 2 Goddard Earth Sciences
More informationDescription of the MPI-Mainz H2O retrieval (Version 5.0, March 2011) Thomas Wagner, Steffen Beirle, Kornelia Mies
Description of the MPI-Mainz HO retrieval (Version 5., March ) Thomas Wagner, Steffen Beirle, Kornelia Mies Contact: Thomas Wagner MPI for Chemistry Joh.-Joachim-Becher-Weg 7 D-558 Mainz Germany Phone:
More informationTropospheric vertical column densities of NO 2. from SCIAMACHY
Algorithm Description Tropospheric vertical column densities of NO 2 from SCIAMACHY Steffen Beirle, Thomas Wagner MPI Mainz, Germany Version 1.0 2012-12-10 Contact: Steffen Beirle Hahn-Meitner-Weg 1 55128
More informationMONITORING OF VOLCANIC ERUPTIONS AND DETERMINATION OF SO 2 PLUME HEIGHT FROM GOME-2 MEASUREMENTS
MONITORING OF VOLCANIC ERUPTIONS AND DETERMINATION OF SO 2 PLUME HEIGHT FROM GOME-2 MEASUREMENTS M. Rix (1) (2), P. Valks (1), D. Loyola (1), C. Maerker (1), K. Seidenberger (1), J. van Gent (3), M. van
More informationThree-dimensional simulation of the Ring effect in observations of scattered sun light using Monte Carlo radiative transfer models
Atmos. Meas. Tech.,, 3, 9 www.atmos-meas-tech.net//3/9/ Author(s) 9. This work is distributed under the Creative Commons Attribution 3. License. Atmospheric Measurement Techniques Three-dimensional simulation
More informationAlgorithm document for SCIAMACHY Stratozone limb ozone profile retrievals
Algorithm document for SCIAMACHY Stratozone limb ozone profile retrievals Date of origin: February 6, 2006 Author: Christian von Savigny Institute of Environmental Physics University of Bremen Otto-Hahn-Allee
More informationO3M SAF VALIDATION REPORT
08/2/2009 Page of 20 O3M SAF VALIDATION REPORT Validated products: Identifier Name Acronym O3M- Offline Total OClO OTO/OClO Authors: Name Andreas Richter Sander Slijkhuis Diego Loyola Institute Universität
More informationGOME-2 COMMISSIONING RESULTS: GEOPHYSICAL VALIDATION OF LEVEL 1 PRODUCTS
GOME-2 COMMISSIONING RESULTS: GEOPHYSICAL VALIDATION OF LEVEL 1 PRODUCTS Rosemary Munro (1), Rüdiger Lang (1), Yakov Livschitz (1), Michael Eisinger (2), Abelardo Pérez-Albiñana (1) (1) EUMETSAT, Darmstadt,
More informationScattered-light DOAS Measurements
9 Scattered-light DOAS Measurements The absorption spectroscopic analysis of sunlight scattered by air molecules and particles as a tool for probing the atmospheric composition has a long tradition. Götz
More informationCALCULATION OF UNDERSAMPLING CORRECTION SPECTRA FOR DOAS SPECTRAL FITTING
CALCULATION OF UNDERSAMPLING CORRECTION SPECTRA FOR DOAS SPECTRAL FITTING Sander Slijkhuis 1, Albrecht von Bargen 1, Werner Thomas 1, and Kelly Chance 2 1 Deutsches Zentrum für Luft- und Raumfahrt e.v.,
More informationRETRIEVAL OF TRACE GAS VERTICAL COLUMNS FROM SCIAMACHY/ENVISAT NEAR-INFRARED NADIR SPECTRA: FIRST PRELIMINARY RESULTS
RETRIEVAL OF TRACE GAS VERTICAL COLUMNS FROM SCIAMACHYENVISAT NEAR-INFRARED NADIR SPECTRA: FIRST PRELIMINARY RESULTS M. Buchwitz, S. Noël, K. Bramstedt, V. V. Rozanov, M. Eisinger, H. Bovensmann, S. Tsvetkova
More informationSatellite-based detection of volcanic sulphur dioxide from recent eruptions in Central and South America
Adv. Geosci., 14, 1 6, 2007 Author(s) 2007. This work is licensed under a Creative Commons License. Advances in Geosciences Satellite-based detection of volcanic sulphur dioxide from recent eruptions in
More informationDOAS: Yesterday, Today, and Tomorrow
12 DOAS: Yesterday, Today, and Tomorrow The preceding two chapters presented examples of the technological development and the scientific contributions of the DOAS technique. This final chapter will give
More informationSCIAMACHY Level 1b-2 Data Processing Status & Changes
SCIAMACHY Level 1b-2 Data Processing Status & Changes Albrecht von Bargen ACVE-2 Workshop, Frascati, Italy May 3 rd, 2004 SCIAMACHY Level 1b-2: Data Processing Status & Changes Contents Data Processor
More informationVALIDATION OF ENVISAT PRODUCTS USING POAM III O 3, NO 2, H 2 O AND O 2 PROFILES
VALIDATION OF ENVISAT PRODUCTS USING POAM III O 3, NO 2, H 2 O AND O 2 PROFILES A. Bazureau, F. Goutail Service d Aéronomie / CNRS, BP 3, Réduit de Verrières, 91371 Verrières-le-Buisson, France Email :
More informationEmission Limb sounders (MIPAS)
Emission Limb sounders (MIPAS) Bruno Carli ENVISAT ATMOSPHERIC PACKAGE MIPAS Michelson Interferometric Passive Atmospheric Sounder GOMOS Global Ozone Monitoring by Occultation of Stars SCIAMACHY Scanning
More informationAerosol measurements from Space. Gerrit de Leeuw FMI & Uni of Helsinki, Finland & TNO, Utrecht, Netherlands
Aerosol measurements from Space Gerrit de Leeuw FMI & Uni of Helsinki, Finland & TNO, Utrecht, Netherlands ACCENT AT-2 Follow-up meeting Mainz, 22 June 2009 ACCENT AT-2 Outcomes The Remote Sensing of Tropospheric
More informationRelationship between ATSR fire counts and CO vertical column densities retrieved from SCIAMACHY onboard ENVISAT
Relationship between ATSR fire counts and CO vertical column densities retrieved from SCIAMACHY onboard ENVISAT C. Liu a, M. Penning de Vries a, S. Beirle a, P. Hoor a, T. Marbach a, C. Frankenberg b,
More informationProgress of total ozone data retrieval from Phaeton - REG(AUTH)
Progress of total ozone data retrieval from Phaeton - REG(AUTH) Alkis Bais, Fani Gkertsi, Theano Drosoglou, Natalia Kouremeti* Lab of Atmospheric Physics Aristotle University of Thessaloniki *PMOD/WRC
More informationGOMOS LIMB SCATTERING OZONE PROFILE RETRIEVAL
GOMOS LIMB SCATTERING OZONE PROFILE RETRIEVAL Ghassan Taha (1,3), Glenn Jaross (1,3), Didier Fussen (2), Filip Vanhellemont (2), Richard D. McPeters (3) (1) Science Systems and Applications Inc10210 Greenbelt
More informationSimulated Radiances for OMI
Simulated Radiances for OMI document: KNMI-OMI-2000-004 version: 1.0 date: 11 February 2000 author: J.P. Veefkind approved: G.H.J. van den Oord checked: J. de Haan Index 0. Abstract 1. Introduction 2.
More informationStatus of the Sentinel-5 Precursor Presented by C. Zehner S5p, S4, and S5 Missions Manager - ESA
Status of the Sentinel-5 Precursor Presented by C. Zehner S5p, S4, and S5 Missions Manager - ESA European response to global needs: to manage the environment, to mitigate the effects of climate change
More informationUncertainty Budgets. Title: Uncertainty Budgets Deliverable number: D4.3 Revision 00 - Status: Final Date of issue: 28/04/2013
Uncertainty Budgets Deliverable title Uncertainty Budgets Deliverable number D4.3 Revision 00 Status Final Planned delivery date 30/04/2013 Date of issue 28/04/2013 Nature of deliverable Report Lead partner
More informationVolcanic & Air Quality SO2 Service -- Product Information
TEMIS PROMOTE SACS Volcanic & Air Quality SO2 Service Product Information Document date: 15 January 2008 Data & Service version: 103, S-07 Introduction Sulphur dioxide (SO2) enters the atmosphere as a
More informationSentinel 5 Precursor: German and Belgian Contribution to the Operational L2 Products
Sentinel 5 Precursor: German and Belgian Contribution to the Operational L2 Products D. Loyola M. Van Roozendael A. Richter T. Wagner A. Doicu J. van Gent M. Buchwitz S. Beirle N. Hao C. Lerot A. Kokhanovsky
More informationAtmospheric Chemistry and Physics
Atmos. Chem. Phys., 7, 19 133, 27 www.atmos-chem-phys.net/7/19/27/ Author(s) 27. This work is licensed under a Creative Commons License. Atmospheric Chemistry and Physics Comparison of box-air-mass-factors
More informationInteractive comment on Analysis of actinic flux profiles measured from an ozone sonde balloon by P. Wang et al.
Atmos. Chem. Phys. Discuss., 14, C10781 C10790, 2015 www.atmos-chem-phys-discuss.net/14/c10781/2015/ Author(s) 2015. This work is distributed under the Creative Commons Attribute 3.0 License. Atmospheric
More informationThe STRatospheric Estimation Algorithm from Mainz (STREAM): Implementation for GOME-2. O3M-SAF Visiting Scientist Activity
The STRatospheric Estimation Algorithm from Mainz (STREAM): Implementation for GOME-2 O3M-SAF Visiting Scientist Activity Final Report November 6, 215 Steffen Beirle and Thomas Wagner Max-Planck-Institute
More informationVerification of Sciamachy s Reflectance over the Sahara J.R. Acarreta and P. Stammes
Verification of Sciamachy s Reflectance over the Sahara J.R. Acarreta and P. Stammes Royal Netherlands Meteorological Institute P.O. Box 201, 3730 AE de Bilt, The Netherlands Email Address: acarreta@knmi.nl,
More informationA feasibility study for GMAP-Asia and APOLLO UV-visible observations and its implications for GEMS
A feasibility study for GMAP-Asia and APOLLO UV-visible observations and its implications for GEMS Hitoshi Irie 1, Katsuyuki Noguchi 2, and Hironobu Iwabuchi 3 1 Japan Agency for Marine-Earth Science and
More informationDELTA-VALIDATION OF ENVISAT SCIAMACHY TOTAL OZONE AND NO 2 WITH THE DATA OF GROUND-BASED UV-VIS MEASUREMENTS (M-124 AND SAOZ)
DELTA-VALIDATION OF ENVISAT SCIAMACHY TOTAL OZONE AND NO 2 WITH THE DATA OF GROUND-BASED UV-VIS MEASUREMENTS (M-124 AND SAOZ) D. Ionov (1,2), F. Goutail (1), J.-P. Pommereau (1), Y. Timofeyev (2), A. Shalamyansky
More informationThe Challenge of. Guy Brasseur
The Challenge of Monitoring and Predicting Chemical Weather Guy Brasseur Introduction: What is Chemical Weather? What is Chemical Weather? Local, regional, and global distributions of important trace gases
More informationComparison of Results Between the Miniature FASat-Bravo Ozone Mapping Detector (OMAD) and NASA s Total Ozone Mapping Spectrometer (TOMS)
SSC08-VI-7 Comparison of Results Between the Miniature FASat-Bravo Ozone Mapping Detector (OMAD) and NASA s Total Ozone Mapping Spectrometer (TOMS) Juan A. Fernandez-Saldivar, Craig I. Underwood Surrey
More informationApplication of Aura/OMI PBL SO 2 product for estimating SO 2 emissions and future enhancements from new satellite missions
Application of Aura/OMI PBL SO 2 product for estimating SO 2 emissions and future enhancements from new satellite missions 1 N. Krotkov, 2 V. Fioletov, 3,1 K. Yang, 4,1 Can Li, 3 R. Dickerson & Aura/OMI
More informationOMNO2 README File. Overview. Application. Algorithm Description. Document Version 3.1: February 15, 2008
OMNO2 README File Document Version 3.1: February 15, 2008 Overview Nitrogen dioxide is an important chemical species in both the stratosphere, where it plays a key role in ozone chemistry, and in the troposphere,
More informationFORMAT-EO SCHOOL GREENHOUSE GAS REMOTE SENSING PROFESSOR JOHN REMEDIOS DR. HARTMUT BOESCH
FORMAT-EO SCHOOL GREENHOUSE GAS REMOTE SENSING PROFESSOR JOHN REMEDIOS DR. HARTMUT BOESCH EOS-SRC, Dept. of Physics and Astronomy, University of Leicester What is covered in this lecture? Climate, radiation
More information1. The frequency of an electromagnetic wave is proportional to its wavelength. a. directly *b. inversely
CHAPTER 3 SOLAR AND TERRESTRIAL RADIATION MULTIPLE CHOICE QUESTIONS 1. The frequency of an electromagnetic wave is proportional to its wavelength. a. directly *b. inversely 2. is the distance between successive
More informationCar MAX-DOAS measurements around entire cities: quantification of NO x emissions from the cities of Mannheim and Ludwigshafen (Germany)
Atmos. Meas. Tech., 3, 709 721, 2010 doi:10.5194/amt-3-709-2010 Author(s) 2010. CC Attribution 3.0 License. Atmospheric Measurement Techniques Car MAX-DOAS measurements around entire cities: quantification
More informationRetrieval of CO from SCIAMACHY onboard ENVISAT: detection of strongly polluted areas and seasonal patterns in global CO abundances
SRef-ID: 1680-7324/acp/2005-5-1639 European Geosciences Union Atmospheric Chemistry and Physics Retrieval of CO from SCIAMACHY onboard ENVISAT: detection of strongly polluted areas and seasonal patterns
More informationGlobal observations and spectral characteristics of desert dust and biomass burning aerosols
Global observations and spectral characteristics of desert dust and biomass burning aerosols M. de Graaf & P. Stammes Royal Netherlands Meteorological Institute (KNMI) P.O. Box 201, 3730 AE De Bilt, The
More informationGROUNDBASED FTIR, OZONESONDE AND LIDAR MEASUREMENTS FOR THE VALIDATION OF SCIAMACHY (AOID 331)
GROUNDBASED FTIR, OZONESONDE AND LIDAR MEASUREMENTS FOR THE VALIDATION OF SCIAMACHY (AOID 331) Astrid Schulz (1), Thorsten Warneke (2), Justus Notholt (2), Otto Schrems (1), Roland Neuber (1), Peter von
More informationComparing aerosol extinctions measured by Stratospheric Aerosol and Gas Experiment (SAGE) II and III satellite experiments in 2002 and 2003
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 110,, doi:10.1029/2004jd005421, 2005 Comparing aerosol extinctions measured by Stratospheric Aerosol and Gas Experiment (SAGE) II and III satellite experiments in
More informationSCIAMACHY: Mission Objectives and Measurement Modes
VOL. 56, O. 2 JOURAL OF THE ATMOSPHERIC SCIECES 15 JAUARY 1999 SCIAMACHY: Mission Obectives and Measurement Modes H. BOVESMA, J.P.BURROWS, M.BUCHWITZ, J.FRERICK, S.OËL, AD V. V. ROZAOV Institute of Environmental
More informationSupplement of Iodine oxide in the global marine boundary layer
Supplement of Atmos. Chem. Phys., 1,, 01 http://www.atmos-chem-phys.net/1//01/ doi:.1/acp-1--01-supplement Author(s) 01. CC Attribution.0 License. Supplement of Iodine oxide in the global marine boundary
More informationRemote Sensing. RAHS C Division Invitational
Remote Sensing RAHS C Division Invitational 2017-18 Instructions: Answer all questions on this answer sheet. Sheets may be double sided, check both sides! If you separate the sheets of the test be sure
More informationLong-Term Halogen Measurements at Cape Verde
Long-Term Halogen Measurements at Cape Verde Ulrich Platt, Udo Frieß, Jessica Balbo Institut for Environmental Physics, University of Heidelberg, Germany Reactive Halogen Species in the Troposphere Previous
More information