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Rationale

AMFIC on AIRSAT- a web data base for hosting and easy retrieval of atmospheric data from satellites. Konstantinos Kourtidis 1 , Aristeidis Georgoulias 1 , Evangelos Kosmidis 2 , Fanis Despotakis 2 , and Panayiotis Symeonidis 3

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Rationale

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  1. AMFIC on AIRSAT- a web data base for hosting and easy retrieval of atmosphericdata from satellites • Konstantinos Kourtidis1, Aristeidis Georgoulias1, Evangelos Kosmidis2, Fanis Despotakis2, and Panayiotis Symeonidis3 1School of Engineering, Demokritus University of Thrace, Dept. of Environmental Engineering, Xanthi, Greece 2DOTSOFT S.A., Thessaloniki, Greece 3Draxis Environmental Technologies LtD., Thessaloniki, Greece

  2. Rationale • Satellite instruments produce large amounts data. • There is an increased demand for satellite data not only from specialized users but also from researchers and public institutions for research, management, information and education purposes. • Many of these potential users lack the expertise to extract the data they need from the formats offered by the repositories. • The AMFIC web database has been developed to address the need of these users for fast, easy access of atmospheric composition data. • The main idea behind the AMFIC database (http://www.amfic.satellite-earth-simulator.com/), is to offer overpass columnar ascii files with atmospheric composition data for every spot within any region of interest through a set of interactive maps.

  3. Product availability Four different products from SCIAMACHY/ENVISAT @three different resolution modes (10x10deg, 5x5deg and 1x1deg) • WFM-DOAS v1.0 CH4 dry air columnar data (XCH4) for 2003 and 2004, • WFM-DOAS v0.6 CO total column data for 2003 and 2004, DOAS v1.0.3 • SO2 total column data for the period 2005-2007 and TM4NO2A version 1.10 • NO2 tropospheric and total column data for the period 2003-2008 are available. Database capable of hosting any other atmospheric composition product (level2 or level3) from any satellite instrument (e.g. OMI, GOME-2, GOSAT, MODIS, etc).

  4. Example Daily single pixel swath NO2tropospheric column measurements from SCIAMACHY assigned to a 1ox1o grid cell covering the greater Thrace region where the Democritus University is located (red square)

  5. Flowchart of the methodology used for the analysis of various datasets

  6. Database short tour

  7. AMFIC-WSDB FRONT data maps showing the general XCH4 patterns, standard deviation and number of months with available measurements over the region of China for 2003.

  8. AMFIC-WSDB FRONT data file including the annual XCH4 levels, standard deviation and number of months with available measurements over the region of China for 2003.

  9. AMFIC-WSDB interactive map. The selected grid cell becomes grey.

  10. AMFIC-WSDB BACK data columnar ascii files with all the XCH4 values in 2003 for the grid cell centered in (36.5oN, 100.5oE).

  11. AMFIC-WSDB BACK data columnar ascii files with the monthly mean XCH4 standard deviation and number of months with available measurements in 2003 for the grid cell centered in (36.5oN, 100.5oE).

  12. AMFIC-WSDB BACK data graph with all the XCH4 single pixel values, the monthly mean, the standard deviation and number of months with available measurements in 2003 for the grid cell centered in (36.5oN, 100.5oE).

  13. The AMFIC-WSDB through a short demo projectLocation of the stations selected for the short demo project which shows the functionality of the AMFIC-WSDB.

  14. Seasonal variability of the SCIAMACHY XCH4, AIRS 206.25, 306.75 and 407.25 mbar pressure level CH4 vmr and NOAA CH4 flask measurements. The summer peaks are indicated by a colored rectangular.

  15. Main advantages of the database: • Allows a wider public to have direct access to satellite observations that they are either dispersed or not in a user-friendly format. • Allows the use of parallel satellite measurements of different parameters due to their common spatial and temporal resolution. • Allows the easy use of data from people interested in data analysis in conjunction with models but also for users who wish to compare surface observations with the corresponding satellite. • Data are suitable even for educational and informational purposes due to the interactive manner in which the system works.

  16. Satellite Earth simulator-AIRSAT http://www.satellite-earth-simulator.com/ Satellite Data Sources • TOMS (Earth Probe TOMS) • SCIAMACHY (ENVISAT) • GOME (ERS-2) • MODIS (AQUA) Meteorological Data Source • NCEP/NCAR Reanalysis Project

  17. Atmospheric data • Ozone vertical column • NO2 vertical column • Aerosol Optical Thickness over ocean • Cloud Optical Thickness • Cloud Top Temperature • Optical Depth Land and Ocean • Atmospheric Water Vapour • Meteorological parameters • Temperature • Humidity • Pressure • Wind speed • Precipitation • Ocean data • Chlorophyll • Sea surface temperature, day/night

  18. An Example: Data from ICSU World Data Center for Remote Sensing of the Atmosphere http://wdc.dlr.de (Spectral Harmonic Analysis applied on NASA EP TOMS Level 2 data) data set geographical area time period

  19. start animation select coordinates daily maps daily data in csv ascii format (1ox1o analysis)

  20. animation time series for Xanthi [41.133oN, 24.883oE] graph & csv ascii format

  21. http://www.amfic.satellite-earth-simulator.com See also: http://www.satellite-earth-simulator.com/

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