Скачать презентацию Satellite data portals for Arctic monitoring Stein Sandven Скачать презентацию Satellite data portals for Arctic monitoring Stein Sandven

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Satellite data portals for. Arctic monitoring Stein Sandven Nansen Environmentaland Remote Sensing Center Euro. Satellite data portals for. Arctic monitoring Stein Sandven Nansen Environmentaland Remote Sensing Center Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Satellite sensors Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006 Satellite sensors Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Near Real Time (NRT) versus Seasonal and Long-term (SLT) monitoring • NRT: daily updated Near Real Time (NRT) versus Seasonal and Long-term (SLT) monitoring • NRT: daily updated products, short delivery time, support operational users, assimilation in forecasting models • SLT: weekly - monthly products, accumulation of time series, seasonal and interannual variability, requirements to accuracy rather than short delivery time Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Examples of portals by the Arctic Task Team OSI SAF: http: //saf. met. no/p/quick. Examples of portals by the Arctic Task Team OSI SAF: http: //saf. met. no/p/quick. html Univ. Bremen: http: //www. seaice. de/ DMI: http: //www. dmi. dk/dmi/index/gronland/iskort. htm DTU/DCRS: http: //www. seaice. dk/ Met. no: http: //polarview. met. no/cgi-bin/highres_arkiv. pl Ifremer: ftp: //ftp. ifremer. fr/ifremer/cersat/products/gridded/psi-drift/ AARI: http: //www. aari. ru/default_en. asp NERSC: http: //hab. nersc. no/, http: //www. nersc. no/Seaice_archive, http: //www. nersc. no/~knutal/Ice. Forecast/ + many other portals providing satellite data and derived products Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Sea ice monitoring from microwave satellites: seasonal variability and trends 100% 90% 80% 70% Sea ice monitoring from microwave satellites: seasonal variability and trends 100% 90% 80% 70% 60% 50% 40% 30% Arctic ice extent 2005 - 2006 15% water land Ref. O. M. Johannessen, 2004 Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Daily regional ice maps from AMSR-E Arctic: North West passage Smith Sound Greenland Sea Daily regional ice maps from AMSR-E Arctic: North West passage Smith Sound Greenland Sea Svalbard Antarctic: Peninsula Ross Sea Scotia Sea Other: Baltic Sea Caspian Sea of Okhotskh Polarstern Provided by University of Bremen Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006 6

ESA rolling archive for ASAR images in the Arctic § § Stripes of ASAR ESA rolling archive for ASAR images in the Arctic § § Stripes of ASAR images for 20 - 29 August 2006 by Kiruna ground station Green = Wide Swath Mode (WSM) Red = Image Mode Medium (IMM) Blue = Alternating Polarisation Mode (APM) Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Example: High-resolution wind from SAR NCEP wind field with standard resolution (modelled fields) Increased Example: High-resolution wind from SAR NCEP wind field with standard resolution (modelled fields) Increased resolution of wind speed derived from SAR data (observed fields)

Chlorophyll-a concentration from optical images Used to monitor a number of environmental parameters such Chlorophyll-a concentration from optical images Used to monitor a number of environmental parameters such as Phytoplankton blooms Terrestrial sediments Dissolved organic matter Sea surface temperature Ice edge location Ice flow characteristics Ice leads Icebergs Sea ice snow cover Chlorophyll-a concentrations 10 August, 2006 Courtesy: http: //HAB. nersc. no © ESA. Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Example of dissemination: DTU browser for integrating products Courtesy: L. Toudal, DTU Euro. GOOS Example of dissemination: DTU browser for integrating products Courtesy: L. Toudal, DTU Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006

Issues for further work ØLong-term satellite programmes ØRetrieval algorithms for geophysical products with focus Issues for further work ØLong-term satellite programmes ØRetrieval algorithms for geophysical products with focus on higher resolution ØDevelop ice and ocean products for assimilation in models: (e. g. ice concentration, ice drift, ice thickness) ØContinued and enhanced provision of SAR data for iceocean monitoring (ESA rolling archive, SENTINEL and other SAR systems) ØInternational Polar Year 2007 - 2008: intensified field investigation and satellite monitoring Euro. GOOS Arctic Task Team Workshop 12 - 13 September 2006