Satellite Meteorology at India Meteorological Department Present Status and Future Developments Dr. Suman Goyal Head – Satellite Applications India Meteorological Department New Delhi, India [email protected]AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
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Satellite Meteorology at India Meteorological Department Present … · 2020-05-04 · Satellite Meteorology at India Meteorological Department Present Status and Future Developments
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Satellite Meteorology at India Meteorological Department
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
History
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Spatial Coverage
INSAT 3D - 82°ECoverage - 10°E to 150°EInstruments – Imager and Sounder
INSAT 3DR - 74°ECoverage - 0° to 140°EInstruments – Imager and Sounder
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Operational scenario of INSAT-3D/3DR
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Region B Scan times 0300,0430,0900,1030,1500,1630,2100,2230Region A Scan times 0100,0200,0600,0700,0800,1200,1300,1400,1800,1900,2000
INSAT-3D/3DR Imager channels
Channel no. Spectral Band Spectrum (μm) Ground Resolution
(km)1 VIS 0.55 – 0.75 1 x 1
2 SWIR 1.55 – 1.70 1 x 1
3 MIR 3.80 – 4.00 4 X 4
4 WV 6.50 – 7.10 8 x 8
5 TIR1 10.2 – 11.3 4 x 4
6 TIR2 11.5 – 12.5 4 x 4
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Current Satellite – Geostationary Imagery
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Images Generated from INSAT-3D/3DR Imager as per Stakeholder’s Requirements
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Geophysical parameters/products of INSAT-3D/3DR Imager
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
New Products from INSAT-3D/3DR
• Cloud Top properties and Clear Sky BT products from INSAT-3D/3DR imager
• IR window and IR-WV intercept methods are applied to generate cloud top temperature, pressure and effective cloud amount from INSAT-3D/3DR observations.
• Clear Sky BT products are generated for NWP data assimilation
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Wind Derived Products from Imager Winds
Relative Vorticity
Convergence Divergence
Wind Shear
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Water Vapour Wind Visible Wind
Cloud Motion WindLow Level Wind
INSAT-3D/3DR Sounder Channels Characteristics
Detector Ch. No. c
(m)
Principal
absorbing gasPurpose
Long wave
1 14.67 CO2 Stratosphere temperature
2 14.32 CO2 Tropopause temperature
3 14.04 CO2 Upper-level temperature
4 13.64 CO2 Mid-level temperature
5 13.32 CO2 Low-level temperature
6 12.62 water vapor Total precipitable water
7 11.99 water vapor Surface temp., moisture
Mid wave
8 11.04 window Surface temperature
9 9.72 ozone Total ozone
10 7.44 water vapor Low-level moisture
11 7.03 water vapor Mid-level moisture
12 6.53 water vapor Upper-level moisture
Short wave
13 4.58 N2O Low-level temperature
14 4.53 N2O Mid-level temperature
15 4.46 CO2 Upper-level temperature
16 4.13 CO2 Boundary-level temp.
17 3.98 window Surface temperature
18 3.76 window Surface temp., moisture
Visible 19 0.695 visible Cloud
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Geophysical parameters from Sounder
AOMSUC – 10, 2-7 December, 2019 – Melbourne, Australia
Rapid ScanSOP of Rapid Scan Strategy of Imager of INSAT-3DR has been finalised for conducting it during Cyclone/ specific weather event. It has been successfully carried out for four cyclones i.e. VSCS LUBAN, TITLI, GAJA & ESCS FANI.
Normal mode scan area has been divided into 36 blocks in North-South directions such that:• Each block covers 0.50 in N-S direction. • No of Scan lines for Each block: 40• Time required to scan each block: 45