SEDIMENT AND CHLOROPHYLL CONCENTRATIONS IN MAJOR CHINESE RIVERS USING MERIS IMAGERY
|
|
- Emily Lester
- 6 years ago
- Views:
Transcription
1 SEDIMENT AND CHLOROPHYLL CONCENTRATIONS IN MAJOR CHINESE RIVERS USING MERIS IMAGERY P.J. Mulhearn (1) and Ian S. F. Jones (2) (1) Ocean Technology Group J05, University of Sydney, NSW 2006 Australia; (2) Ocean Technology Group J05, University of Sydney, NSW 2006 Australia; ABSTRACT In the course of an attempt to investigate sediment and chlorophyll levels in outflows of three major Chinese rivers, it has been found to be nearly impossible to obtain any valid data from MERIS imagery in the coastal zone. The problems were found to be due to either aerosol levels which were too high or to the presence of aerosols whose properties could not be matched to any of the aerosol models currently held in the MERIS database. These aerosols most likely arise from the large increases in aerosol loads which are occurring over China as it increasingly develops economically. 1. INTRODUCTION The growing affluence of the Chinese people and the resulting expansion of industrial activity has increased the amount of pollution produced. This pollution ends up in the rivers and in the atmosphere. Simultaneously dam building changes the river flow patterns. Will changes in sediment transport, such as induced by the Three Gorges dam, impact on the coastal ocean and its fishery? The primary production, as depicted by the phytoplankton abundance is expected to respond.. This project attempted to investigate the turbidity and chlorophyll levels in the outflows of three major Chinese rivers, using MERIS imagery. Earlier studies in the Great Barrier Reef lagoon found good correlation between MERIS results and ground truth, although MERIS tended to underestimate Total Suspended Solids (TSS) [1]. The three rivers were the Huanghe (Yellow River), the Changjiang (Yangtze River) and the Zhujiang (Pearl River). The satellite images have the potential to show large scale patterns of ocean parameters, as against in-situ measurements, which may be more accurate but which can not be used to obtain overall synoptic views. It was hoped to examine seasonal and interannual variations in turbidity and chlorophyll levels and the occurrences of algal blooms. Unfortunately no reliable images were obtained, despite examination of many images from a range of years and seasons. All water areas were flagged as Case 2 sediment dominated. The algorithm for Case 2, sediment dominated, bright pixel atmospheric correction [2] often failed to give valid results and in some cases provided negative normalized water leaving reflectances. Problems flagged were invalid aerosol alpha and aerosol thickness, ice or high aerosol load pixel, or aerosol model is out of aerosol model database. PCD_19 (uncertain aerosol type and optical thickness) was flagged over wide areas. (PCD = Product Confidence Data). Reference [3] found that aerosol optical depth increased dramatically over China from 1961 to 1990, particularly over the middle and lower reaches of the Changjiang and the eastern part of southwest China. No images were found in this study in which the majority of pixels gave valid results according to the MERIS algorithms in VISAT. The problems encountered are examined below for a number of very typical cases. Proc. Envisat Symposium 2007, Montreux, Switzerland April 2007 (ESA SP-636, July 2007)
2 Mouth Figure 1. MERIS image, from 5 March 2005, of TSS in area near the Huanghe outflow, and TSS histogram showing the distribution in gm/m TYPICAL CASE STUDIES 2.1 Huanghe Outflow Region 5 March 2005 The Huanghe is one of China s largest rivers and meets the sea at Bohai Bay, south of Tianjin. The area of Bohai Bay north of the river s mouth is shown in Fig. 1, in which total suspended sediment (TSS) concentrations, computed from the MERIS data, of 5 March 2005, are shown. Strange features are the relatively low values (in blue) around the river mouth, and the higher TSS band (in yellow) off shore. This yellow colour corresponds to a TSS of 50 gm/m 3, which is the upper limit for calculating TSS from the MERIS sensor [4]. However the area flagged as having invalid reflectances extends offshore approximately twice as far as the yellow area. The low values very close to shore (in blue and white) are probably due to adjacency effects [5]. Fig. 2(a) shows, in black, the areas flagged as having invalid reflectances, while Fig. 2(b) shows, in black, the areas flagged as having invalid aerosol alpha and aerosol thickness. The background image in Figs. 2 (a) and (b) is the MERIS band 1 (wavelength of nm) image of 5 March 2005, which is shown in Fig. 3 (a). In this last white areas are those with zero or near zero reflectance in band 1. The white areas close to the black in Fig. 2(b) are also areas of near zero reflectance in this band. In Fig. 3 (b) the pastel green areas within the white area are flagged as aerosol model is out of aerosol model database, i.e. the atmospheric aerosol in this area could not be matched with the aerosol models within the MERIS database. The invalid reflectances within this image appear to be due then to there being no model within the MERIS database able to match the aerosol type present in the scene. This is a common problem within the area of Figs. 1 to 3.
3 (a) (b) Figure 2. Invalid pixels, shown in black, near the Huanghe outflow on a MERIS band 1 image: (a) invalid reflectances; (b) invalid aerosol alpha and aerosol thickness. (a) (b) Figure 3. MERIS image near the Huanghe outflow on 5 March 2005(a) Band 1, (b) Band 1 image with pastel green overlay within white area indicating aerosol model is out of aerosol model database.
4 Changjiang mouth Hangzhou Bay Figure 4. MERIS image of TSS at the mouth of the Chanjiang and in Hangzhou Bay, and TSS histogram showing the distribution in gm/m 3, 17 October Changjiang Outflow, 17 October 2004 The Changjiang is China s longest river and the one with the greatest volume flow and one of the greatest sediment fluxes [6]. In Fig. 4 is shown TSS calculated from MERIS data for 17 October As one moves inshore TSS can be seen to increase to approximately 50 gm/m 3 and then start to decrease. This is clearly an artifact due to the system s inability to handle TSS concentrations above 50 gm/m 3. (a) (b) Figure 5 MERIS image of band 1, 17 October 2004 with (a) invalid reflectances, flagged in black and (b) Areas of invalid aerosol alpha and aerosol thickness flagged in black. Fig. 5 shows the areas flagged as having pixels with (a) invalid reflectances and (b) invalid aerosol alpha and aerosol thickness. As these two areas are the same it seems that the former is determined by the latter. Reflectances are valid within the light blue area. However TSS values higher than 50 gm/m 3 were very likely landward
5 of the light blue area, so the MERIS algorithms may here be confusing strange aerosols with high TSS values. The area covered by this image was found to have the same problems on many occasions. Figure 6. MERIS image of TSS in the Zhujiang estuary, 14 February 2004, and TSS histogram showing the distribution in gm/m Zhujiang Estuary, 14 February 2004 The Zhujiang is the major river in southern China. Ghuangzhou and its industrial area are situated on its banks and its estuary is just to the west of Hong Kong. This estuary and the waters around Hong Kong have been the subjects of many studies e.g. [7] and [8]. Fig. 6 shows the TSS values, calculated from MERIS data, in the Zhujiang estuary on 14 February The values in this image appear to be quite sensible, with maximum TSS values less than 50 gm/m 3. However over-water reflectances in the whole image are flagged as invalid. The over-water pixels are also flagged as invalid aerosol alpha and aerosol thickness and ice or high aerosol load. It seems, once again that the MERIS algorithms cannot handle the aerosols, a common problem over the Zhujiang estuary. 3. SOURCES OF AEROSOLS The levels of air pollution in China are notoriously high, and this could be a major contributor to the problems with aerosols found in this study. The major sources of pollution are coal combustion and vehicle exhausts [9] to [14]. In the winter months fine dust transported from north-west China is also a major source of airborne particles in Beijing, coastal China and over the Yellow Sea, east of Bohai Bay [9], [12] and [15]. Near the mouths of the Changjiang and Zhujiang both the pollution and wind-driven soil are major sources of aerosols in the winter months. The aerosol optical depths over China have also been dramatically increasing [3]. In Hong Kong, close to the mouth of the Zhujiang, the summer monsoon brings clean marine air over that region [10].Although this is very high in humidity, its aerosol model should be in the MERIS database. It may just be that the aerosol levels are just too high. The inability of the MERIS algorithms to resolve the TSS and chlorophyll seems to persist along the whole China coastline. This would suggest the problem lies with the aerosol resolution and not with the very high values of TSS in the river plumes near the river mouth. In order to meet our original goals it may be necessary to develop a bigger range of aerosol models for use with the MERIS algorithms. 4. REFERENCES 1. Kosmicki, K., L. Ametistova,, I.S.F Jones (2005) From SeaWifs to MERIS: Great Barrier Reef Lagoon Case Study, ESA SP Aiken, J. and Moore, G. (2000) Algorithm Technical Basis Document ATBD 2.6 Case 2 (S) Bright Pixel Atmospheric Correction, Plymouth Marine Laboratory PO-TN- MEL- GS-0005.
6 3. Yunfeng, L., Lu, D., Zhou, X., Li, W. And He, Q. (2001) Characteristics of the spatial distribution and yearly variation of aerosol optical depth over China in the last 30 years. Journal of Geophysical Research, 106, European Space Agency (2002) EnviSat MERIS Product Handbook, MERIS Quality Working Group (2006), MERIS Product Quality Status Report MEGS7.4 and IPF 5, version 1, ENVISAT 6. Wu, J., H. Shen, Y. Chen, (2001), Sediment classification and estimation of suspended sediment fluxes in the ChangJiang Estuary, China, Water Resources Research, 37, Yin, K., 2002, Monsoonal influence on seasonal variations in nutrients and phytoplankton biomass in coastal waters of Hong Kong in the vicinity of the Pearl River estuary, Marine Ecology Progress Series, 245, Cai, W-J., Dai, M., Wang, Y., Zhai, W., Huang, T., Chen, S., Zhang, F., Chen, Z and Wang, Z. (2004) The biogeochemistry of inorganic carbon and nutrients in the Pearl River estuary and the adjacent Northern South China Sea, Continental Shelf Research, 24, Sun, Y., Zhuang, G., Wang, Y., Han, L., Guo, J., Dan, M., Zhang, W, Wang, Z. and Hao, Z. (2004) The air-borne particle pollution in Beijing concentration, composition, distribution and sources, Atmospheric Environment, 38, Ye,B., Ji, X., Yang, H., Yao, X., Chan, C.K., Cadle, S.H., Chan, T. and Mulawa, P.A. (2003) Concentration and chemical composition of PM 2.5 in Shanghai for a 1- year period, Atmospheric Environment, 37, Zhang, J., Wu, Y., Liu, C.L., Shen, Z.B., Yu, Z.G. and Zhang, Y. (2001) Aerosol characters from the desert region of Northwest China and the Yellow Sea in spring: observations at Minqin, Qingdao and Qianliyan in Atmospheric Environment, 35, Kim, B-G., Han, J-S and Park, S-U (2001) Transport of SO 2 and aerosol over the Yellow Sea, Atmospheric Environment, 35, Cao, L., Tian, W., Ni, B., Zhang, Y. and Wang, P. (2002) Preliminary study of airborne particulate matter in a Beijing sampling station by instrumental neutron activation analysis, Atmospheric Environment, 36, Cheng, Z.L., Lam, K.S., Chan, L.Y. Wang, T. and Cheng, K.K. (2000) Chemical characteristics of aerosols at coastal station in Hong Kong. I. Seasonal variation of major ions, halogens and mineral dusts between 1995 and 1996, Atmospheric Environment, 34, Shu, J., Dearing, J.A., Morse, A.P., Yu, L. and Yuan, N. (2001) Determining the sources of atmospheric particles in Shanghai, China, from magnetic and geochemical properties, Atmospheric Environment, 35,
Analysis of China s Haze Days in the Winter Half-Year and the Climatic Background during
ADVANCES IN CLIMATE CHANGE RESEARCH 5(1): 1-6, 2014 www.climatechange.cn DOI: 10.3724/SP.J.1248.2014.001 CHANGES IN CLIMATE SYSTEM Analysis of China s Haze Days in the Winter Half-Year and the Climatic
More informationThe low water-leaving radiances phenomena around the Yangtze River Estuary
The low water-leaving radiances phenomena around the Yangtze River Estuary He Xianqiang* a, Bai Yan a, Mao Zhihua a, Chen Jianyu a a State Key Laboratory of Satellite Ocean Environment Dynamics, Second
More informationThe regional distribution characteristics of aerosol optical depth over the Tibetan Plateau
The regional distribution characteristics of aerosol optical depth over the Tibetan Plateau C. Xu, Y. M. Ma, CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences xuchao@itpcas.ac.cn
More information2001 State of the Ocean: Chemical and Biological Oceanographic Conditions in the Newfoundland Region
Stock Status Report G2-2 (2) 1 State of the Ocean: Chemical and Biological Oceanographic Conditions in the Background The Altantic Zone Monitoring Program (AZMP) was implemented in 1998 with the aim of
More informationWho is polluting the Columbia River Gorge?
Who is polluting the Columbia River Gorge? Final report to the Yakima Nation Prepared by: Dan Jaffe, Ph.D Northwest Air Quality, Inc. 7746 Ravenna Avenue NE Seattle WA 98115 NW_airquality@hotmail.com December
More informationC M E M S O c e a n C o l o u r S a t e l l i t e P r o d u c t s
Implemented by C M E M S O c e a n C o l o u r S a t e l l i t e P r o d u c t s This slideshow gives an overview of the CMEMS Ocean Colour Satellite Products Marine LEVEL1 For Beginners- Slides have been
More informationIAP Dynamical Seasonal Prediction System and its applications
WCRP Workshop on Seasonal Prediction 4-7 June 2007, Barcelona, Spain IAP Dynamical Seasonal Prediction System and its applications Zhaohui LIN Zhou Guangqing Chen Hong Qin Zhengkun Zeng Qingcun Institute
More informationSupporting Information for. Spatiotemporal Trends of Elemental Carbon and Char/Soot Ratios in
1 2 3 4 Supporting Information for Spatiotemporal Trends of Elemental Carbon and Char/Soot Ratios in Five Sediment Cores from Eastern China Marginal Seas: Indicators of Anthropogenic Activities and Transport
More informationMERIS Reprocessing Neural Net Algorithm. Roland Doerffer, Carsten Brockmann,
MERIS Reprocessing Neural Net Algorithm Roland Doerffer, doerffer@gkss.de Carsten Brockmann, brockmann@brockmann-consult.de MERIS: Aufnahme der Helgoländer Bucht MERIS FR 16.4.2003 Helgoland Bight Section
More informationImpacts of Atmospheric Corrections on Algal Bloom Detection Techniques
1 Impacts of Atmospheric Corrections on Algal Bloom Detection Techniques Ruhul Amin, Alex Gilerson, Jing Zhou, Barry Gross, Fred Moshary and Sam Ahmed Optical Remote Sensing Laboratory, the City College
More information5.5. Coastal and inland waters
5.5. Coastal and inland waters 5. Atmospheric Correction SeaWiFS and MODIS Experiences Show: High quality ocean color products for the global open oceans (Case-1 waters). Significant efforts are needed
More informationA model study of the circulation in the Pearl River Estuary (PRE) and its adjacent coastal waters: 2. Sensitivity experiments
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 108, NO. C5, 3157, doi:10.1029/2002jc001452, 2003 A model study of the circulation in the Pearl River Estuary (PRE) and its adjacent coastal waters: 2. Sensitivity
More informationSouth, Southeast, and East Asia. Physical Geography
South, Southeast, and East Asia Physical Geography Mountains v Mountains are important in Asia because they influence: A. Population patterns B. Movement of people and goods C. Climate Mountains v The
More informationAnalysis on the decadal scale variation of the dust storm in North China
2260 Science in China Ser. D Earth Sciences 2005 Vol.48 No.12 2260 2266 Analysis on the decadal scale variation of the dust storm in North China KANG Dujuan 1,2 & WANG Huijun 1 1. NZC/LASG, Institute of
More informationSPATIAL CHARACTERISTICS OF THE SURFACE CIRCULATION AND WAVE CLIMATE USING HIGH-FREQUENCY RADAR
SPATIAL CHARACTERISTICS OF THE SURFACE CIRCULATION AND WAVE CLIMATE USING HIGH-FREQUENCY RADAR Apisit Kongprom,Siriluk Prukpitikul, Varatip Buakaew, Watchara Kesdech, and Teerawat Suwanlertcharoen Geo-Informatics
More informationICE DRIFT IN THE FRAM STRAIT FROM ENVISAT ASAR DATA
ICE DRIFT IN THE FRAM STRAIT FROM ENVISAT ASAR DATA Stein Sandven (1), Kjell Kloster (1), and Knut F. Dagestad (1) (1) Nansen Environmental and Remote Sensing Center (NERSC), Thormøhlensgte 47, N-5006
More informationDominant zooplankton species shift in the Changjiang River Estuary and its possible causes
June 1, 2007 Hiroshima Dominant zooplankton species shift in the Changjiang River Estuary and its possible causes ZHANG Guang-Tao Ph. D The Changjiang River Estuary (CRE) had attracted attention, because:
More informationWorld Geography Chapter 3
World Geography Chapter 3 Section 1 A. Introduction a. Weather b. Climate c. Both weather and climate are influenced by i. direct sunlight. ii. iii. iv. the features of the earth s surface. B. The Greenhouse
More informationA quantitative assessment of human impacts on decrease in sediment flux from major Chinese rivers entering the western Pacific Ocean
Click Here for Full Article GEOPHYSICAL RESEARCH LETTERS, VOL. 36, L19603, doi:10.1029/2009gl039513, 2009 A quantitative assessment of human impacts on decrease in sediment flux from major Chinese rivers
More informationAnnex VI-1. Draft National Report on Ocean Remote Sensing in China. (Reviewed by the Second Meeting of NOWPAP WG4)
UNEP/NOWPAP/CEARAC/WG4 2/9 Page1 Draft National Report on Ocean Remote Sensing in China (Reviewed by the Second Meeting of NOWPAP WG4) UNEP/NOWPAP/CEARAC/WG4 2/9 Page1 1. Status of RS utilization in marine
More informationAutomated ocean color product validation for the Southern California Bight
Automated ocean color product validation for the Southern California Bight Curtiss O. Davis a, Nicholas Tufillaro a, Burt Jones b, and Robert Arnone c a College of Earth, Ocean and Atmospheric Sciences,
More informationSeasonal Simulaions of a coupled ice-ocean model in the Bohai Sea and North Yellow Sea
Seasonal Simulaions of a coupled ice-ocean model in the Bohai Sea and North Yellow Sea Yu LIU,Qinzheng LIU,Jie Su*, Shan BAI,Maoning Tang National Marine Environmental Forecasting Center * Ocean University
More informationRemote Sensing ISSN
Remote Sens. 2010, 2, 2127-2135; doi:10.3390/rs2092127 Communication OPEN ACCESS Remote Sensing ISSN 2072-4292 www.mdpi.com/journal/remotesensing Determination of Backscatter-Extinction Coefficient Ratio
More informationNational Ocean Technology Center of China Wang Xiangnan
National Ocean Technology Center of China Wang Xiangnan 2011.10 1 National Ocean Technology Center Beijing Tianjin NOTC Established in 1965 Staff of 500 Bohai Sea 2 3 National Ocean Technology Center Administrated
More informationWintertime SST and Chl a off NW Iberian shelf from satellite and in situ data
Wintertime SST and Chl a off NW Iberian shelf from satellite and in situ data Paulo B. Oliveira+, Teresa Moita+, Rui Catarino+, António Jorge da Silva++ + INRB IPIMAR Instituto Nacional de Recursos Biológicos,
More informationA case for FLH in coastal waters: monitoring the spring bloom in British Columbia, Canada, plus MCI examples
A case for FLH in coastal waters: monitoring the spring bloom in British Columbia, Canada, plus MCI examples Jim Gower, Stephanie King, Institute of Ocean Sciences, Fisheries and Oceans Canada, Sidney
More informationRESEARCH REPORT SERIES
GREAT AUSTRALIAN BIGHT RESEARCH PROGRAM RESEARCH REPORT SERIES Regional Availability of MODIS Imagery in the Great Australian Bight Ana Redondo Rodriguez1 Edward King2 and Mark Doubell1 SARDI Aquatic Sciences
More informationEnvironmental Settings and Harmful Algal Blooms in the Sea Area Adjacent to the Changjiang River Estuary
Coastal Environmental and Ecosystem Issues of the East China Sea, Eds., A. Ishimatsu and H.-J. Lie, pp. 133 149. by TERRAPUB and Nagasaki University, 2010. Environmental Settings and Harmful Algal Blooms
More informationFrom micro to macro scale the impact on the sediment discharge after construction of the Three Gorges Dam on Yangtze River (Changjiang)
From micro to macro scale the impact on the sediment discharge after construction of the Three Gorges Dam on Yangtze River (Changjiang) Aleksandra Dewiszek 9th International SedNet conference Solving societal
More informationSentinel 2 Pre-processing Requirements for coastal and inland waters
Sentinel 2 Pre-processing Requirements for coastal and inland waters K A I S Ø R E NSEN NIVA CARSTEN B R O CKMANN Ecological and chemical classification of water bodies in Norway Water quality - products
More informationHICO OSU Website and Data Products
HICO OSU Website and Data Products Curtiss O. Davis College of Earth Ocean and Atmospheric Sciences Oregon State University, Corvallis, OR, USA 97331 cdavis@coas.oregonstate.edu Oregon State Introduction
More informationADVANCES IN EARTH SCIENCE
29 2 2014 2 ADVANCES IN EARTH SCIENCE Vol. 29 No. 2 Feb. 2014. J. 2014 29 2 207-215 doi 10. 11867 /j. issn. 1001-8166. 2014. 02. 0207. Ma Yaoming Hu Zeyong Tian Lide et al. Study progresses of the Tibet
More informationand Rong R. Li 2 New York, 695 Park Avenue, New York, NY 10021
SPATIAL DISTRIBUTION PATTERNS OF CHLOROPHYLL-A AND SUSPENDED MATTER IN THE YANGTZE ESTUARY AND THE HANGZHOU BAY AS OBSERVED WITH THE HYPERSPECTRAL IMAGER FOR THE COASTAL OCEAN (HICO) * Karl H. Szekielda
More informationConsolidation properties of dredger fill under surcharge preloading in coast region of Tianjin
30 2 2011 6 GLOBAL GEOLOGY Vol. 30 No. 2 Jun. 2011 1004-5589 2011 02-0289 - 07 1 1 2 3 4 4 1. 130026 2. 130026 3. 110015 4. 430074 45 cm 100% ` TU447 A doi 10. 3969 /j. issn. 1004-5589. 2011. 02. 020 Consolidation
More informationPhysical Geography of East Asia
Physical Geography of East Asia Satellite View of China Landforms of China China s Geography China Miles 0 250 500 1,000 1,500 2,000 United States 3 rd largest country in the world. Comparable to the US
More informationVALIDATION OF AEROSOL OPTICAL THICKNESS RETRIEVED BY BAER (BEMEN AEROSOL RETRIEVAL) IN THE MEDITERRANEAN AREA
VALIDATION OF AEROSOL OPTICAL THICKNESS RETRIEVED BY BAER (BEMEN AEROSOL RETRIEVAL) IN THE MEDITERRANEAN AREA Wolfgang von Hoyningen-Huene (1), Alexander Kokhanovsky (1), John P. Burrows (1), Maria Sfakianaki
More informationGEOPHYSICAL RESEARCH LETTERS, VOL. 34, L14610, doi: /2007gl029633, 2007
Click Here for Full Article GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L14610, doi:10.10/2007gl06, 2007 Reply to comment by Jinchun Yuan et al. on Reduction of primary production and changing of nutrient ratio
More informationResponse of Nutrients and Primary Production over the Shelf in the East China Sea to the Reduction of Oceanic Nutrient Supply
Interdisciplinary Studies on Environmental Chemistry Marine Environmental Modeling & Analysis, Eds., K. Omori, X. Guo, N. Yoshie, N. Fujii, I. C. Handoh, A. Isobe and S. Tanabe, pp. 19 30. by TERRAPUB,
More informationMeasurement and Analysis of the Vertical Distribution Characteristic of the Atmospheric Particle Concentration in Beijing District
International Journal of Environmental Science and Development, Vol. 5, No. 2, April 214 Measurement and Analysis of the Vertical Distribution Characteristic of the Atmospheric Particle Concentration in
More informationCopernicusEU. the EU's Earth Observation Programme. Sara Zennaro Atre Delegation of the European Union to Japan
Copernicus the EU's Earth Observation Programme Sara Zennaro Atre Delegation of the European Union to Japan Status Overview, Sept 2016 & Ocean Policies Seminar 4 October 2016 ollow us on: Copernicus EU
More informationEstimation of ocean contribution at the MODIS near-infrared wavelengths along the east coast of the U.S.: Two case studies
GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L13606, doi:10.1029/2005gl022917, 2005 Estimation of ocean contribution at the MODIS near-infrared wavelengths along the east coast of the U.S.: Two case studies
More informationTrend of dust storm days and variation in dust and carbon monoxide concentrations during dust storms observed at Cheongwon, Korea
Korea Centre for Atmospheric Environment Research Trend of dust storm days and variation in dust and carbon monoxide concentrations during dust storms observed at Cheongwon, Korea Yong-Seung CHUNG and
More informationIreland: Predictions. NMP Current closures ASP AZP DSP PSP
HAB Bulletin [status of harmful and toxic algae] Ireland: Predictions ASP event: High - steady continuous increase AZP event: High/mod - due to constant fluctuation DSP event: Low/mod low but slow increase
More informationWeather and Climate Summary and Forecast August 2018 Report
Weather and Climate Summary and Forecast August 2018 Report Gregory V. Jones Linfield College August 5, 2018 Summary: July 2018 will likely go down as one of the top five warmest July s on record for many
More informationComparison of aerosol radiative forcing over the Arabian Sea and the Bay of Bengal
Advances in Space Research 33 (2004) 1104 1108 www.elsevier.com/locate/asr Comparison of aerosol radiative forcing over the Arabian Sea and the Bay of Bengal S. Dey a, S. Sarkar b, R.P. Singh a, * a Department
More informationApplication of microwave radiometer and wind profiler data in the estimation of wind gust associated with intense convective weather
Application of microwave radiometer and wind profiler data in the estimation of wind gust associated with intense convective weather P W Chan 1 and K H Wong 2 1 Hong Kong Observatory, 134A Nathan Road,
More informationSediment Transport and Strata Formation in the Adriatic Sea
Sediment Transport and Strata Formation in the Adriatic Sea Wayne R. Geyer James D. Irish Peter A. Traykovski Woods Hole Oceanographic Institution Woods Hole, MA 02543 Tel. (508) 289-2868, Fax: (508) 457-2194,
More informationNumerical Simulation of Seasonal Variation of Temperature in the Bohai Sea
Available online at www.sciencedirect.com Procedia Environmental Sciences ( ) 3rd International Conference on Environmental Science and Information Conference Application Title Technology (ESIAT ) Numerical
More informationPreparation and dissemination of the averaged maps and fields of selected satellite parameters for the Black Sea within the SeaDataNet project
Journal of Environmental Protection and Ecology 11, No 4, 1568 1578 (2010) Environmental informatics Preparation and dissemination of the averaged maps and fields of selected satellite parameters for the
More informationCurrent Application of Vicarious Calibration for Geostationary Ocean Color Imager (GOCI) DATA
Current Application of Vicarious Calibration for Geostationary Ocean Color Imager (GOCI) DATA On behalf of Jae-Hyun Ahn & Young-je Park, Seongick CHO(Secondment at Astrium SAS, France) Korea Ocean Satellite
More informationHyperspectral imaging of river systems
Hyperspectral imaging of river systems Curtiss O. Davis College of Oceanic and Atmospheric Sciences Oregon State University 104 COAS Admin. Bldg. Corvallis OR 97331-5503 U.S.A. +1 541-737-5707 cdavis@coas.oregonstate.edu
More informationArctic-Coastal Land Ocean Interactions
Arctic- Project PIs: Maria Tzortziou (CCNY / CUNY) Antonio Mannino (NASA/GSFC) Joseph Salisbury (Univ. of NH) Peter Hernes (UC Davis) Carlos Del Castillo (NASA/GSFC) Marjorie Friedrichs (VIMS) Patricia
More informationChapter 21 Southwest Asia: Harsh & Arid Lands
Name Hour Chapter 21 Southwest Asia: Harsh & Arid Lands Essential Question: How has the physical geography of Asia influenced the development of these regions (i.e. history, population distribution, &
More informationTEACHER VERSION: Suggested student responses are included. Seasonal Cycles: the North Atlantic Phytoplankton Bloom
Name: Date: Guiding Question: TEACHER VERSION: Suggested student responses are included. Seasonal Cycles: the North Atlantic Phytoplankton Bloom What are the factors that control the patterns/cycles of
More informationThe Interdecadal Variation of the Western Pacific Subtropical High as Measured by 500 hpa Eddy Geopotential Height
ATMOSPHERIC AND OCEANIC SCIENCE LETTERS, 2015, VOL. 8, NO. 6, 371 375 The Interdecadal Variation of the Western Pacific Subtropical High as Measured by 500 hpa Eddy Geopotential Height HUANG Yan-Yan and
More informationUndergraduate Research Final Report: Estimation of suspended sediments using MODIS 250 m bands in Mayagüez Bay, Puerto Rico
Undergraduate Research Final Report: Estimation of suspended sediments using MODIS 250 m bands in Mayagüez Bay, Puerto Rico Abstract: José F. Martínez Colón Undergraduate Research 2007 802-03-4097 Advisor:
More informationCoastal Water Quality Monitoring in Cyprus using Satellite Remote Sensing
Coastal Water Quality Monitoring in Cyprus using Satellite Remote Sensing D. G. Hadjimitsis 1*, M.G. Hadjimitsis 1, 2, A. Agapiou 1, G. Papadavid 1 and K. Themistocleous 1 1 Department of Civil Engineering
More informationAnalysis on Temperature Variation over the Past 55 Years in Guyuan City, China
Analysis on Temperature Variation over the Past 55 Years in Guyuan City, China Liu Rui 1, 2,*, Zhang ZhiHua 1, 2 1 School of Environmental Science and Engineering, Chang an University, No.126 Yanta Road,
More informationCALIBRATION OF THERMAL INFRARED CHANNELS OF FENG YUN SATELLITE DATA. Wan Hazli Wan Kadir, Abd Wahid Rasib, Ab. Latif Ibrahim and Zawatil Azhani Zaini
CALIBRATION OF THERMAL INFRARED CHANNELS OF FENG YUN SATELLITE DATA Wan Hazli Wan Kadir, Abd Wahid Rasib, Ab. Latif Ibrahim and Zawatil Azhani Zaini Department of Remote Sensing, Faculty of Geoinformation
More informationNumerical simulation of the low visibility event at the. Hong Kong International Airport on 25 December 2009
Numerical simulation of the low visibility event at the Hong Kong International Airport on 25 December 2009 P. W. Chan, Hong Kong Observatory, Hong Kong, China; and T. Yao and J. C. H. Fung, Hong Kong
More informationInvestigating the contribution of allochthonous subsidies to kelp forests in central California
Investigating the contribution of allochthonous subsidies to kelp forests in central California melissa m foley UCSC Institute of Marine Science and Center for Ocean Solutions system connectivity rivers
More informationThe spatial distribution of suspended sediment analysis along Krueng Cut River, Banda Aceh
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS The spatial distribution of suspended sediment analysis along Krueng Cut River, Banda Aceh To cite this article: M Irham et al 08
More informationCirculation in the South China Sea in summer of 1998
Circulation in the South China Sea in summer of 1998 LIU Yonggang, YUAN Yaochu, SU Jilan & JIANG Jingzhong Second Institute of Oceanography, State Oceanic Administration (SOA), Hangzhou 310012, China;
More information2. What is a phytoplankton bloom and when does it generally occur in the North Atlantic?
Name: Date: Guiding Question: Seasonal Cycles: the North Atlantic Phytoplankton Bloom What are the factors that control the patterns/cycles of phytoplankton growth in the North Atlantic Ocean? Introduction
More informationLESSON THREE Time, Temperature, Chlorophyll a Does sea surface temperature affect chlorophyll a concentrations?
STUDENT PAGES LESSON THREE A partnership between California Current Ecosystem Long Term Ecological Research (CCE LTER) and Ocean Institute (OI) Beth Simmons, Education and Outreach Coordinator, CCE LTER,
More informationSatellite-based Red-Tide Detection/Monitoring
Satellite-based Detection/Monitoring Contents 1. Introduction - and Its Monitoring System 2. Detection Using Ocean Color Remote Sensing 3. Satellite-Based Monitoring in the Asian Coastal Seas Hiroshi KAWAMURA
More informationDr Marc Lucas CLS Toulouse, France.
Dr Marc Lucas CLS Toulouse, France. Oceanology International 15th March 2012 Slide 1 Ocean depiction In the past: Information mainly comes from in situ measurements (ADCP) Now: The role of satellite data
More informationIndonesian seas Numerical Assessment of the Coastal Environment (IndoNACE) Executive Summary
Indonesian seas Numerical Assessment of the Coastal Environment (IndoNACE) Executive Summary Study team members: Dr. Martin Gade, PD Dr. Thomas Pohlmann, Dr. Mutiara Putri Research Centres: Universität
More informationModeling the Columbia River Plume on the Oregon Shelf during Summer Upwelling. 2 Model
Modeling the Columbia River Plume on the Oregon Shelf during Summer Upwelling D. P. Fulton August 15, 2007 Abstract The effects of the Columbia River plume on circulation on the Oregon shelf are analyzed
More informationAPPENDIX B PHYSICAL BASELINE STUDY: NORTHEAST BAFFIN BAY 1
APPENDIX B PHYSICAL BASELINE STUDY: NORTHEAST BAFFIN BAY 1 1 By David B. Fissel, Mar Martínez de Saavedra Álvarez, and Randy C. Kerr, ASL Environmental Sciences Inc. (Feb. 2012) West Greenland Seismic
More informationUNIT 5: ECOLOGY Chapter 15: The Biosphere
CORNELL NOTES Directions: You must create a minimum of 5 questions in this column per page (average). Use these to study your notes and prepare for tests and quizzes. Notes will be stamped after each assigned
More informationPersistent effects of the Yellow River on the Chinese marginal seas began at least. ~880 ka ago
Persistent effects of the Yellow River on the Chinese marginal seas began at least ~880 ka ago Zhengquan Yao, Xuefa Shi, Shuqing Qiao, Qingsong Liu, Selvaraj Kandasamy, Jianxing Liu, Yanguang Liu, Jihua
More informationCharacterizing the Physical Oceanography of Coastal Waters Off Rhode Island
Characterizing the Physical Oceanography of Coastal Waters Off Rhode Island Dan Codiga and Dave Ullman Graduate School of Oceanography University of Rhode Island RI OSAMP Stakeholder Meeting January 5,
More informationCharacteristics of Variations of Water Properties and Density Structure around the Kuroshio in the East China Sea
Journal of Oceanography, Vol. 54, pp. 605 to 617. 1998 Characteristics of Variations of Water Properties and Density Structure around the Kuroshio in the East China Sea EITAROU OKA and MASAKI KAWABE Ocean
More informationPhysicochemical and Optical Properties of Aerosols in South Korea
Physicochemical and Optical Properties of Aerosols in South Korea Seungbum Kim, Sang-Sam Lee, Jeong-Eun Kim, Ju-Wan Cha, Beom-Cheol Shin, Eun-Ha Lim, Jae-Cheol Nam Asian Dust Research Division NIMR/KMA
More informationMethane in the Changjiang (Yangtze River) Estuary and its Adjacent Marine Area: Riverine Input, Sediment Release and Atmospheric Fluxes
Methane in the Changjiang (Yangtze River) Estuary and its Adjacent Marine Area: Riverine Input, Sediment Release and Atmospheric Fluxes Guiling Zhang 1, Jing Zhang 2, Sumei Liu 1, Jingling Ren 1 1 Department
More informationDecrease of light rain events in summer associated with a warming environment in China during
GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L11705, doi:10.1029/2007gl029631, 2007 Decrease of light rain events in summer associated with a warming environment in China during 1961 2005 Weihong Qian, 1 Jiaolan
More informationover the Northern West Florida Shelf from SeaWinds and ASCAT
Interannual Variability of Synoptic Scale Winds over the Northern West Florida Shelf from SeaWinds and ASCAT Steve Morey Mark Bourassa Austin Todd COAPS/FSU This work is sponsored by the NASA Ocean Vector
More informationMERIS for Case 2 Waters
MERIS for Case 2 Waters Roland Doerffer &Helmut Schiller GKSS Forschungszentrum Institute for Coastal Research doerffer@gkss.de Case 2 water reflectance spectra North Sea Dissolved and suspended matter
More informationThe Relation between the Red Tide Occurrence and the Sea Water Temperature in South Sea of Korea
, pp.132-136 http://dx.doi.org/10.14257/astl.2017.145.26 The Relation between the Red Tide Occurrence and the Sea Water Temperature in South Sea of Korea Do-Hyun Hwang 1, Su-Ho Bak 1, Heung-Min Kim 1,
More informationEnhanced primary production in the oligotrophic South China Sea by eddy injection in spring
GEOPHYSICAL RESEARCH LETTERS, VOL. 37,, doi:10.1029/2010gl043872, 2010 Enhanced primary production in the oligotrophic South China Sea by eddy injection in spring I I Lin, 1 Chun Chi Lien, 1 Chau Ron Wu,
More informationPrepared by the North American Ice Service. 4 December Seasonal Outlook Great Lakes Winter
Prepared by the North American Ice Service A collaboration of the Canadian Ice Service and the National/Naval Ice Center 4 December 2008 Seasonal Outlook Great Lakes Winter 2008-2009 - 1 - Table of contents
More informationAnalysis on Climate Change of Guangzhou in Nearly 65 Years
, pp.111-117 http://dx.doi.org/10.14257/astl.2016.138.24 Analysis on Climate Change of Guangzhou in Nearly 65 Years Wenzheng Yu, Haitao Liu, Chunyong Yin, Jin Wang College of Environmental Science and
More informationAEROSOL RETRIEVAL AND ATMOSPHERIC CORRECTION FOR MERIS DATA OVER LAKES
AEROSOL RETRIEVAL AND ATMOSPHERIC CORRECTION FOR MERIS DATA OVER LAKES Dana Floricioiu, Helmut Rott Institute of Meteorology and Geophysics, University of Innsbruck, Innrain, A-6 Innsbruck, Austria. Email:
More informationDavid Antoine on behalf of the OCAPI science team
European prospects for a geostationary ocean color sensor: the ocean color advanced permanent imager (OCAPI) David Antoine on behalf of the OCAPI science team Curtin University, Remote Sensing & Satellite
More informationModeling Study of A Typical Summer Ozone Pollution Event over Yangtze River Delta
36 11 2015 11 ENVIRONMENTAL SCIENCE Vol 36 No 11 Nov 2015 * - - 210044 WRF /Chem 2013 8 10 ~ 18 11 ~ 13 h 15 00 WRF /Chem X51 A 0250-3301 2015 11-3981-08 DOI 10 13227 /j hjkx 2015 11 006 Modeling Study
More informationStage II: final report
Remote sensing of river plumes in the Canterbury Bight. Stage II: final report NIWA Client Report: CHC2010-048 April 2010 NIWA Project: ENC09519 Remote sensing of river plumes in the Canterbury Bight.
More informationClimate. Annual Temperature (Last 30 Years) January Temperature. July Temperature. Average Precipitation (Last 30 Years)
Climate Annual Temperature (Last 30 Years) Average Annual High Temp. (F)70, (C)21 Average Annual Low Temp. (F)43, (C)6 January Temperature Average January High Temp. (F)48, (C)9 Average January Low Temp.
More informationAerosol Optical Depth Variation over European Region during the Last Fourteen Years
Aerosol Optical Depth Variation over European Region during the Last Fourteen Years Shefali Singh M.Tech. Student in Computer Science and Engineering at Meerut Institute of Engineering and Technology,
More informationNew Zealand Climate Update No 226, April 2018 Current climate March 2018
New Zealand Climate Update No 226, April 2018 Current climate March 2018 March 2018 was characterised by significantly higher pressure than normal to the east of New Zealand. This pressure pattern, in
More informationSEAWIFS VALIDATION AT THE CARIBBEAN TIME SERIES STATION (CATS)
SEAWIFS VALIDATION AT THE CARIBBEAN TIME SERIES STATION (CATS) Jesús Lee-Borges* and Roy Armstrong Department of Marine Science, University of Puerto Rico at Mayagüez, Mayagüez, Puerto Rico 00708 Fernando
More informationSeasonal Aerosol Vertical Distribution and Optical Properties over North China Xing-xing GAO, Yan CHEN, Lei ZHANG * and Wu ZHANG
2017 International Conference on Energy, Environment and Sustainable Development (EESD 2017) ISBN: 978-1-60595-452-3 Seasonal Aerosol Vertical Distribution and Optical Properties over North China Xing-xing
More informationWorkshop and Conference on Biogeochemical Impacts of Climate and Land-Use Changes on Marine Ecosystems November 2009
2066-12 Workshop and Conference on Biogeochemical Impacts of Climate and Land-Use Changes on Marine Ecosystems 2-10 November 2009 Nutrient cycling in the Mekong River plume M. Voss IOW Germany Nutrient
More informationGIS and Coastal Nutrients Luke Cole
GIS and Coastal Nutrients Luke Cole Human population density has been widely utilized as a valid predictor of terrestrial nitrogen loads into marine systems. As 50% of the world s population lives within
More informationAtmospheric correction in presence of sun glint: the POLYMER Algorithm
Atmospheric correction in presence of sun glint: the POLYMER Algorithm Dominique Jolivet François Steinmetz Pierre-Yves Deschamps Jan 17, 2011 Atelier National Couleur de l'eau - GIS COOC c 2011 Atmospheric
More informationBig Bend Regional Aerosol & Visibility Observational Study
Big Bend Regional Aerosol & Visibility Observational Study BRAVO - Results Bret Schichtel National Park Service, Schichtel@cira.colostate.edu Presented at the BRAVO Public Meeting Alpine, Texas September
More informationA Preliminary Analysis of the Relationship between Precipitation Variation Trends and Altitude in China
ATMOSPHERIC AND OCEANIC SCIENCE LETTERS, 2011, VOL. 4, NO. 1, 41 46 A Preliminary Analysis of the Relationship between Precipitation Variation Trends and Altitude in China YANG Qing 1, 2, MA Zhu-Guo 1,
More informationObservational Study of Wind Fields, Temperature Fields over Beijing Area in Summer and Winter 1)
( ), 41, 3,2005 5 Acta Scientiarum Naturalium Universitatis Pekinensis, Vol. 41, No. 3 (May 2005) Observational Study of Wind Fields, Temperature Fields over Beijing Area in Summer and Winter 1) HU Xiaoming
More informationCarbon cycle in the coastal ocean. Hubert Loisel LOG. IOCS 2017, Lisbonne
Carbon cycle in the coastal ocean Hubert Loisel LOG IOCS 2017, Lisbonne Between land and open ocean, the coastal ocean gathers a great variety of environments (delta, estuaries, coastal shelves, etc) where
More informationTime-series observations in the Northern Indian Ocean V.V.S.S. Sarma National Institute of Oceanography Visakhapatnam, India
The Second GEOSS Asia-Pacific Symposium, Tokyo, 14-16 th April 28 Time-series observations in the Northern Indian Ocean V.V.S.S. Sarma National Institute of Oceanography Visakhapatnam, India Seasonal variations
More information