Use of EUMETCast/GEONETCastat Regional Branch Offices in Ethiopia. KassaFekadu National Meteorological Agency of Ethiopia

Transcription

1 Use of EUMETCast/GEONETCastat Regional Branch Offices in Ethiopia KassaFekadu National Meteorological Agency of Ethiopia NMA 25 March 2015

2 Overview of Presentation Introduction and GEONETCast Toolbox EUMETCast Data Reception Systems in Ethiopia: Some previous experiences Regional Meteorological Branch offices Dedicated Water and Food Security Ethiopia Toolbox developed: Design of toolbox Functionality examples Effective use of GEONETCast in Branch Offices: Installation Insight training Conclusions

3 Introduction GEONETCast is a near real time, global network of satellite based data dissemination systems in situ data, metadata and products to diverse communities Using GEONETCast large amounts of environmental related information is currently operationally disseminated over Africa and can be received without internet connection; Complementary data contained in these data streams is relevant for application domains related to weather, atmosphere, oceans, land, vegetation, water and environment; A ground receiving station can be established using low cost and off-the-shelf equipment;

4 GEONETCast Toolbox: an ILWIS Open Plug-in ILWIS is now open source RS/GIS Package; download at Ilwis Key-features: Integrated raster and vector design Import and export of widely used data formats On-screen and tablet digitizing Comprehensive set of image processing tools Orthophoto, image geo referencing, transformation and mosaicing Advanced modeling and spatial data analysis 3D visualization with interactive editing for optimal view findings Rich projection and coordinate system library Geo-statistical analyses, with Kriging for improved interpolation Production and visualization of stereo image pairs Spatial Multiple Criteria Evaluation

5 GEONETCast Toolbox features GEONETCasttoolbox developed as ILWIS Open Plug-in ITC), incorporates the following routines: GEONETCast data reception File Manager MSG images: HRIT, LRIT and RSS import routines (user window-based) Real time visualization of MSG HRIT data Products: MPEF, SAFs, SPOT_VGT and Modisfire import routines Open software routines, Java applets, batch files and automation scripts processing, included (samples); Coupling to other freeware tools: BUFR, GRIB2, Irfanview, BILKO, BEAM and BRAT. All other standard ILWIS functionality

6 Open design: easy to change modify or add routines Menu based on XML configuration file Can be easily modified according to preferences of user New functionality can be added without need for programming

7 Data Reception Systems in Ethiopia Some previous experiences National Meteorological Agency of Ethiopia (NMA) has been receiving and using hard copies of satellite imageries in 1980s Since 1990 Meteorological satellite (METEOSAT) has been installed in cooperation with the UK government. This system called METEOSAT PRIMARY DATA USERS SYSTEM(PDUS). PUMA (Preparation for the Use of MSG in Africa), 2005 was the first pan-african technology project focusing on Earth observation funded by the European Union and has vastly enhanced weather forecasting capabilities across the African continent. The African Monitoring of Environment for Sustainable Development (AMESD) 2010 project is taking PUMA a stage further by significantly extending the use of remote sensing data for environmental and climate monitoring applications.

8

9 Reception Antenna PUMA 2005 At HQ in Addis PUMA 2010

10 Regional Meteorological Branch offices Mekelle Bahir Dar Kombolcha Semera Jijiga Assossa Jimma Gambella Adama Robe Awassa

11 Some Activities of Regional Branch Offices The offices have structured organization provide meteorological services at their respective areas Represent the Agency in all meteorological matters in the regional states Provision of weather and climate information to regional states Administer conventional and Automatic weather stations as well as collect and archive data from stations Issuing short and medium range weather forecast for their respective regional state

12 Dedicated Water and Food Security Ethiopia Toolbox developed NMA is working, with support of the UN World Food Program, under the framework of a dedicated project in which a toolbox was developed by ITC, University of Twente; The toolbox should also contain meteorological information so it can be effectively used by the branch offices and should be freely available.

13 The WFS-Ethiopia Toolbox main and sub menu structure under ILWIS About 130 processing routines and EUMETCast Data Manager

14 Configure input & output folders and import the data Info on temporal resolution Simple in use! After input and output folder are defined only the product time stamp is required to import the product

15 MSG Data Retriever and METEOSAT 7 import Import of MSG (time series) images according to user needs and import routines for MET-7 for the whole field of view and resampled to the Ethiopia Window.

16 Real Time MSG Visualization routines For the IGAD Region and including HRV channel for Ethiopia Window (resolution merge and pseudo natural colourtransformation) for more detailed assessment Automated day time and night time animation capability, every 15 minutes Thermal channel using inverted gray scale and applying thresholds for color coding (orange to pink representing clouds from 235K to less than 190K)

17 Ethiopian Window: some selected High Resolution MPEF examples Atmospheric motion vectors, cloud analysis image, cloud top height and cloud mask

18 Ethiopian Window: some selected Low Resolution MPEF examples MSG derived Daily and DekadalMinimum, Maximum and Mean NDVI

19 Ethiopian Window: some selected SAF examples Surface Radiation Budget parameters Albedo (daily), Land Surface Temperature (15 minutes) and Downwelling Surface Short-wave Radiation Flux (30 minutes)

20 Ethiopian Window: some selected SAF examples Bio-Geophysical Area parameters Fraction of Absorbed Photosynthetic ActiveRadiation(FAPAR), Fraction of Vegetation Cover (FVC) and Leaf Area Index (LAI), all daily products

21 Ethiopian Window: SAF ET Daily example ET distribution over the day time in UTC Aggregated Daily ET from 48 half-hourly ET products in an automated manner and creation of status map showing number of valid observation (to evaluate if the aggregated ET might be underestimated due to no data values in some of the half hourly products)

22 Ethiopian Window: some selected TAMSAT examples TAMSAT Dekadaland Monthly Rainfall Estimates and Anomalies

23 Ethiopian Window: some selected SPOT VGT and PROBA-V examples Current PROBA-Vegetation products: NDVI, LAI and FVC

24 Ethiopian Window: some selected other products MSG based Automated Burned Biomass Algorithm Fire product, FIR-C and MODIS Aqua Terra Fire Product with attribute tables, ASCAT (Metop A/B) and Copernicus Soil Moisture products

25 NWC-SAF Cloud Products Cloud mask, type, cloud top temperature, height and pressure and cloudiness at full MSG spatial and temporal resolution, resampled to Ethiopia window

26 Meteorological Data Dissemination Service: MDD-3 Based upon requirements from NMA First find MDD-3 Product codes from different messages

27 Meteorological Data Dissemination Service: MDD-3 Example of Mean Sea Level Pressure at 980hPa and Winds at 850hPa Products are at different resolution (1 and 2.5 degree), if available both are processed

28 MeteoFranceNWP model output at 15 isobaric levels Example of temperature profile over a selected location, from 100 to 975 hpa, from 3 hr forecast Temperature º C Pressure level

29 MDD-4 (ACMAD) visualisationof rainfall and temperature forecasts Creating animations of latest ECMWF forecasts Precipitation Temperature (at 2 mtr)

30 Automated processing and visualization Automatically create mapviews, showing latest images / products received Viewer MSG-Day MSG-Night MPEF NWC-SAF Image/products imported Layers added to MapView visualization Background layers used / at disposal All MSG SEVIRI channels, converted to reflectance and temperature. Images are stretched and gamma function is applied. IR_10.8 (K) WV_6.2 (K) Enhanced IR_10.8 Airmass RGB Dust RGB Microphysics RGB Severe Storm RGB Natural RGB HighRes RGB All IR MSG SEVIRI channels, converted to temperature. Images are stretched and gamma function is applied. IR_10.8 (K) WV_6.2 (K) Enhanced IR_10.8 Airmass RGB Dust RGB Microphysics RGB Cloud Mask (CLM), Multi Sensor Precipitation Estimate (MPEG), Atmospheric Motion Vectors (AMV), Optimal Cloud Analysis (OCAE) CLM Cloud Mask MPEG Precipitation (mm/hr) OCAE Pixel Scene Type AMV Direction, Speed, Pressure, Temperature, approx. Elevation, Scaling for Cloud Mask (CMa), Cloud Type (CT), Cloud Temperature- Height (CTTH) CMa Cloud Mask CT Cloud Type and Phase CTTH Cloudiness (%), Temperature (K), Pressure (hpa), Height (m) speed Layers used: land/water mask, water bodies and main roads Ethiopia, country boundaries, Other layers available: (colour shaded) DEM and satellite image background, Ethiopia (admin) regions and cities

31 Automated processing and visualization Automatically create mapviews of latest information received Layers can be turned on /off by operator, no further interaction required! MSG-Day Visualisation MPEF Visualisation

32 Automated processing and visualization Automatically create animation of latest 2 hrmsg-10.8 channel information received Colourcoding of temperatures below 240 K Temperature class (K) Colour >240 Inverted gray scale Dark blue Blue Cyan Green Yellow Orange Red < 205 Brown MSG Channel Animation

33 Installation Effective use of GEONETCast at the Branch Offices Consequently, NMA planned to establishing 11 low cost GEONETCast stations for 11 branch offices. Prioterized three GEONETCast stations, located at Bahir Dar, Awassa and Adama Currently all branch offices equipped with low cost GEONETCast reception stations

34 System layout

35 Ground receiving components Two PCs are recommended -one for the DVB acquisition and a second for processing applications. Digital Video Broadcasting Board EUMETCast Client Software EUMETCast Key Unit (EKU) Antenna, with universal V/H LNB in C-band

36 GEONETCastReception Stations at 11 Branch offices

37 Adama Bahir Dar Awassa

38 Effective use of GEONETCastdata in Branch Offices Insight Training sessions

39 Concluding remarks In Ethiopia, weather and climate risks are major determinants for water and food security of the livelihood of the population; Hence, timely and reliable weather and climate monitoring and forecasting are very crucial; In order to have reliable weather and climate monitoring as well as prediction the role of satellite data received by GEONETCast stations is indispensable; Low cost data reception system, in conjunction with free toolbox is a good alternative for weather and climate monitoring and forecasting to provide trustworthy information to various Ethiopian regional user communities.

40 Thank you very much for your attention!