Pradeep Thapliyal, Munn Shukla, Nitant Dube

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Presentation transcript:

Report from ISRO Annual Meeting of GRWG/GDWG, Frascati, Italy 4-8 March 2019 Pradeep Thapliyal, Munn Shukla, Nitant Dube Space Applications Centre (ISRO) India

ISRO Current satellites for Earth Observations YEAR... 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 GEO KALPANA-1 (VHRR) INSAT-3A (VHRR, CCD) INSAT-3D (IMAGER & SOUNDER) INSAT-3DR (IMAGER & SOUNDER) INSAT-3DS (IMAGER & SOUNDER) GISAT (MX-VNIR, HyS-VNIR, HyS-SWIR, MX-LWIR) Atmosphere & Ocean Oceansat-2 (OCM, SCAT, ROSA) LEO CNES-ISRO MT (MADRAS, SAPHIR, ScaRaB, ROSA) CNES-ISRO SARAL (ALTIKA, ARGOS) NEMO-AM (MADPI) SCATSAT-1 (Scatterometer) Oceansat-3 (OCM, LWIR, SCAT) NASA-ISRO NISAR Land & Water Resourcesat-2 (LISS-3/4, AWiFS) RISAT-1 (C-SAR) Resourcesat-2A (LISS-3/4, AWiFS) Cartographic CARTOSAT-1 (Stereo PAN) CARTOSAT-2 (PAN) CARTOSAT-2E (PAN) CARTOSAT-3 (PAN) YEAR... 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Main contribution to GDWG actions GSICS Website development – Demo version operational (web page address: https://mosdac.gov.in/gsics - need to be corrected at WMO site) INSAT-3DR NRTC demo products added in GSICS Website THREDDS server setup completed (Webex meeting on 23 Jan 2019) GSICS Plotting tool under development – awaiting RAC products

Main contribution to GRWG actions Intercalibration procedure established for INSAT-3D Imager and Sounder (NRTC) –Demo phase Intercalibration procedure is operational for INSAT-3DR Imager INSAT-3D/3DR RAC products - under development Results from vicarious calibration of INSAT-3D/3DR radiances using in-situ upper air observations over ISRO cal-val site Kavaratti island were analysed. GEO-GEO inter-comparison of INSAT-3D/3DR and MSG-SEVIRI carried out INSAT-3D/3DR Visible channel calibration using DCC method is in implementation phase – in collaboration with Dave Doelling, NASA INSAT-3D/3DR Visible channel calibration using ray-tracing method is in near completion phase.

ISRO GSICS website

ISRO GSICS Plotting Tool (INSAT-3D)

Issues Retention of residual biases after GSICS correction Currently diagnosing the problem Exploring effect of conversion in radiance unit Non-linearity in the GSICS correction – exploring various possibility to incorporate the non-linear correction

Thanks