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Isro Report on Ocean Colour Activities

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Isro Report on Ocean Colour Activities ISRO REPORT ON OCEAN COLOUR ACTIVITIES OCEANSAT-2 OCM Feb 6, 2017 Irrawaddy River Delta, Bay of Bengal Prakash Chauhan Space Applications Centre, Indian Space Research Organisation Ahmedabad-380015, INDIA 1 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 ISRO- EARTH OBSERVATION SATELLITES LAND & WATER HIGH RESOLUTION OCEAN WEATHER; CLIMATE OCEANSAT-2 INSAT-3A RESOURCESAT-2 CARTOSAT-2; 2A; 2B (2003) (2011) (2009) KALPANA (2002) (2007) RISAT-1 (2008) (2010) MEGHA- TROPIQUES SARAL RISAT-2 CARTOSAT-1 (2013) (2012) (2012) (2005) (2011) INSAT-3D (2013) 1 KM IMAGING CAPABILITY 0.8 M Resourcesat-2A, SCATSAT-1, Cartosat 2S series, INSAT-3DR already launched in 2016 Cartosat-3, Oceansat-3, GISAT being added during 2017-19 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 RISAT-1 HRS Image over Effiel Tower, Paris Update on Ocean Colour Activities in India OCEAN COLOUR OPERATIONAL DATA PRODUCTS & DISSEMINATION FOR OCM-2 Retrieval algorithms for Ocean colour parameters over case-1 waters, coastal and inland waters Inversion algorithms for quantifying absorption and backscattering process (IOP estimation) In-situ database on AOP, IOP and in-water constituent concentrations for seas around India Implementation of a data processing chain for OCM-2 at NRSC, Hyderabad for improved radiometery AVIRIS-NG Airborne Hyperspectral data for Coastal / Inland waters . More than 74 sites in India were covered by AVIRIS-NG airborne campaign, including 5 sites for coastal, inland waters and coral reefs • Hyperspectral data is being analysed for algorithm development and retrieval of waters colour parameters OCEANSAT-3 OCM sensor development . OCEANSAT-3 satellite is approved by Government. It will carry a Ocean Colour Instrument and Ku band Scatterometer. OCM-3 sensor having 13 bands and a SST sensor is currently under development at ISRO. Discussions on NASA-ISRO cooperation for PACE mission 2 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 OCEANSAT-2 OCEAN COLOUR MONITOR (OCM-2) 3 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 OCEANSAT-2 OCM Data products LEVEL-1 Product: Basic Data Products - L1A RAW Products (Internal Use Only & DQE) - L1B Radiance Product - L1C Radiometrically and Geometrically corrected LEVEL-2 Product: Geo-Physical Parameters - Chlorophyll-a concentration - Total Suspended Matter (TSM) - Diffused Attenuation Coefficients (Kd- 490 nm) - Aerosol Optical Depth (AOD) at 865 nm Products supported in HDF 4 format can be Displayed and processed in SeaDas •OCM-2 payload is working nominally •Seven years of ocean colour data around India & Globe (Limited) 4 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Natural Colour Composite Land and Ocean Colour around Animation - Jan 2017 Gujarat as captured by OCEANSAT-2 OCM sensor 23 January 2017 Indus Delta Turbid waters GOK Turbidity shades around Muddy Brown Gujarat coast water of Gulf of Khambhat Blue Oceanic waters of Arabian Sea 5 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Massive Outbreak of Noctiluca algal blooms in the Arabian Sea as captured by Indian OCEANSAT-2 OCM on Feb 11, 2017 Every year during Pakistan Iran winters north-western Arabian Sea experiences outbreak of Noctiluca algal blooms. This bloom at times causes fish mortality on Oman coast due to hypoxia. This image is captured by Indian OCM sensor on OCEANSAT-2 satellite on Feb 11, 2017. Oman Algal bloom Noctiluca cells Noctiluca colony Arabian Sea Water in flask Field Photo Trichodesmium Bloom detection using OCEANSAT-2 OCM data on May 3, 2017 Off Ratnagiri coast, Maharashtra, India OCEANSAT-2 Mumbai OCM data May 3, 2017 Field Photo Ratnagiri Trichodesmium Green waters Field Photos taken during Sagar Sampda Cruise Ratnagiri Arabian Sea Trichodesmium Trichodesmium spp. is nitrogen fixing marine blue-green algae commonly found in tropical oceans. They form massive blooms during summer period, when surface waters are warm and devoid of nitrate. These blooms are important for nitrogen bio-geo-chemistry of oceans. May 11, 2017 AVIRIS-NG data over Veraval Fishing Harbour in Gujarat 1 2 3 5 4 3 2 1 4 5 Spectral variability of different water types Hyperspectral Data Analysis using AVIRIS-NG 6 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Sargassum Habitat over Pirotan Reef : AVIRIS NG data Macroalgae Habitat around Pirotan Floating Sargassum in the Gulf of Kachchh AEROSOL MONITORING FROM SPACE: GEO PLATFORM Achievements • Aerosol optical depth (AOD) retrieval has been developed using INSAT-3D imager data. • AOD maps are operationally available at every ½ hour interval during daytime on Vedas air quality web portal of ISRO. • Extensive validation of INSAT-3D derived AOD with ground measurements encompassing more than 1700 collocated points has been done. High AOD in Indo-Gangetic plain during 15/10/16 to 6/11/16 due to crop residue burning in Haryana and AOD map for adjoining states. Delhi and adjoining Vedas/ISRO Air Quality Web Portal Delhiregion Indo- H Before Diwali High pollution Dust storm arrival period (2 Nov) After dust storm Moderate pollution after Diwali night Pollution very high Moderate pollution & then decreased Monthly climatology of AOD for 2016 AOD profile over Delhi during pre and post Dewali period Way Forward Key outcome Benefits to Stake holders • Technique development to derive particulate • Air pollution monitoring and matter concentration using remote sensing • PM2.5 and PM10 maps over metropolitan cities. mitigation. data. • AOD maps at high spatial resolution (<2km) In-situ Bio-Optical data collection .In-situ data collection in collaboration with other National Institutes and Universities. .Measurement & Analysis according to Ocean Optics Protocols •Radiometric measurements •Spectrophotometeric measurements •HPLC 3.5 •Fluorometry 3 0 m 10m 20 m 2.5 •CTD 2 -1 abs m abs 1.5 •Microscopy 1 0.5 •Nutrients 0 800 273.00, 304.00, 335.00, 366.00, 397.00, 428.00, 459.00, 490.00, 521.00, 552.00, 583.00, 614.00, 645.00, 676.00, 707.00, 738.00, 769.00, wavelength •pH 0.0E+0 2.0E-3 4.0E-3 Lu [uW/cm^2/nm/sr] 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 kEd [/m] •DO 0.00 0.02 0.04 Rrs [/sr] 0.00 0.04 0.08 0.12 Chl-a [ug/L] •Ancilliary data 0 -10 Nov 15, 2002 [1130IST] -20 65°58.326E/13°03.558S -30 •Aerosol optical depth Temp -40 -50 Chl-a 13 15 -60 kEd412 •C and N Measurements -70 -80 kEd443 Depth [m] Depth -90 kEd490 -100 •POC & DOC -110 Rrs443 -120 Rrs490 -130 -140 Rrs555 -150 IOCS-2017Lu670 meeting at Lisbon, Portugal, May 15-18, 20177 20 21 22 23 24 25 26 27 28 29 Temp [°C] Bio-Optics Laboratory at Space Applications Centre, (ISRO) A Bio-optics laboratory is developed at SAC/ISRO. The laboratory is equipped with State-of- art equipment such as High Performance Liquid Chromatography (HPLC), Total Organic Carbon Analyser (TOC), UV-VIS Spectrophotometer, Probe sonicator, Cool centrifuge, Inverted Microscope & hyperspectral radiometer to meet the in-situ data requirements of OCM and future Ocean Colour missions of ISRO. 8 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 SCATSAT-1 SCATTEROMETER DATA PRODUCTS Level Description Swath Cell Size Level 1B Scan mode σo 1800 Km -- 50kmx50km, Level 2A Swath grid mode σo 1800 Km 25kmx25km Swath grid Wind 50kmx50km, Level 2B 1800 Km product 25kmx25km Launched on Sep 26, 0.50×0.50, Level 3W Global wind product Global 2016 0.250×0.250 0.50×0.50, Data available at Level 3S Global σo product Global 0.250×0.250 www.nrsc.gov.in Variable www.mosdac.gov.in Level 4 Value added Products Global IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Future EO Satellites for Ocean Observation Continuity of space observations….. & Ocean OCEANSAT-1 OCEANSAT-2 RISAT-1 SARAL INSAT-3D OCEANSAT-3 INSAT-3DR GISAT Atmosphere GISAT 1999 2009 2018 OCEANSAT-3 Global Ocean Coverage Payloads • 13 Band Ocean Colour Monitor • 2 Bands for SST • Ku Band Scatterometer Status • PSLV Launch 2018-19 2018-19 9 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Oceansat-3 Spacecraft Mission Specifications IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Oceansat-3 OCM & SSTM Instrument B1 11 µm Sea surface temperature detection SSTM bands B2 12 µm Sea Surface Temperature detection 10 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 Thank You 11 IOCS-2017 meeting at Lisbon, Portugal, May 15-18, 2017 .
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