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8/13/2019 Ocean Applications remote sensing
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Ocean Remote Sensing
Dr.N.Srinivasa RaoScientist
Data & information Management Group (DMG),Indian National Centre for Ocean Information Services (INCOIS)
Hyderabad - 500 090Office : +91 40 23886035,23886062Mobile: +91 9392011134
mailto:[email protected]:[email protected]8/13/2019 Ocean Applications remote sensing
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(Unbelievable Fish catching!!! At
Arthunkal beach on 28/01/2013)
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06 Nov 2011, Oceansat-2 OCM, RGB image showing a plume near Dhamra river
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06 Nov 2011, Oceansat-2 OCM, Chl-a-a image showing a plume near Dhamra river
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21 Jan 2012, Chlorophyll-a 21 Jan 2012, AVHRR-SST
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Arthunkal Arthunkal Arthunkal
23 Jan 2013 25 Jan 2013 27 Jan 2013
Oceansat-2 OCM enhanced images
Blooming
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Arthunkal Arthunkal Arthunkal
23 Jan 2013 25 Jan 2013 27 Jan 2013
Chlorophyll-a mg/m3
Oceansat-2 OCM Derived Chlorophyll-a images
Blooming
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Cold SST
27 Jan 2013 AVHRR-SST Image
Warm SST
Arthunkal
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Chlorophyll-a (mg/m3)
Diffuse Attenuation Coefficient, Kd-490)
Study area showing in a circle
Enhanced RGB image
Bloom
Bloom
Observed post monsoon algal
blooms in South East Arabian
Sea (SEAS) on 19th October
2011 from Oceansat-2 OCM.
Blooming is confirmed with
chlorophyll-a and Kd490
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19 Oct 2011, 11:50 Z 21 Oct 2011, 11:50 Z
Algal boom
Algal boom
Algal boom
feature shift
~ 50 km.
Algal bloom observed on 19thOctober 2011 has been moving towards north around 50Kmswithin 48Hrs with an average speed of 1Km/hr.
Chlorophyll-a (mg/m3)Chlorophyll-a (mg/m3)19, 21 Oct 2011
blended imageN
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03 Aug 2013-Godavari Flood water discharge
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14 Feb 2012, Oceansat-2 OCM, Chl-a showing a plume near KG basin
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A Case study cyclone Laila (17-21 May 2010)
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15 May 2010
Oceansat-2 Scatterometer winds
Kalpana-1 Visible
Spatial Distribution of rainfall classification
Andhra Pradesh
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16 May 2010
Oceansat-2 Scatterometer winds
Kalpana-1 Visible
Spatial Distribution of rainfall classification
Andhra Pradesh
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Oceansat-2 Scatterometer windsMETEOSAT-7 IR
Spatial Distribution of rainfall classification
Andhra Pradesh
18 May 2010
METEOSAT-7 IR + Oceansat-2 wind vectors
LAT LON TIME WIND Status
11.8 86.1 05/18/00Z 35 TROPICALSTORM
12.3 84.9 05/18/06Z 40 TROPICALSTORM
13.2 83.3 05/18/12Z 50 TROPICALSTORM
13.4 82.2 05/18/18Z 55 TROPICALSTORM
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METEOSAT-7 WV
Spatial Distribution of rainfall classification
Andhra Pradesh
19 May 2010
Kalpana-1 Visible
LAT LON TIME WIND Status
13.4 81.9 05/19/00Z 65 CYCLONE-1
13.7 81.4 05/19/06Z 65 CYCLONE-1
14.1 81.2 05/19/12Z 65 CYCLONE-114.3 81.4 05/19/18Z 60 TROPICAL STORM
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METEOSAT-7 WV
Spatial Distribution of rainfall classification
Andhra Pradesh
20 May 2010
Kalpana-1 Visible
DISTRICT Mandal Name Rainfall (mm)
Prakasham
MADDIPADU 256.20
ONGOLE 323.50
NAGULUPPALAPADU 342.00
KOTHAPATNAM 350.00
LAT LON TIME WIND Status
14.9 81 05/20/00Z 60 TROPICAL STORM
15.8 80.1 05/20/06Z 50 TROPICAL STORM
15.8 80.5 05/20/12Z 50 TROPICAL STORM
15.6 80.5 05/20/18Z 60 TROPICAL STORM
21 M 2010
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METEOSAT-7 WV
Spatial Distribution of rainfall classification
Andhra Pradesh
21 May 2010
Kalpana-1 VisibleDISTRICT Mandal Name Rainfall (mm)
GunturVINUKONDA 245.20
NUZENDLA 271.40
Prakasham
KOTHAPATNAM 258.60
THALLUR 262.20
CHIMAKURTHI 270.40
SANTHANUTHLAPADU 273.80
MADDIPADU 510.60
ADDANKI 522.20
LAT LON TIME WIND Status
16.4 80.7 05/21/00Z 50 TROPICAL STORM
16.8 81.3 05/21/06Z 40 TROPICAL STORM
17.1 81.4 05/21/12Z 35 TROPICAL STORM
17.1 81.4 05/21/12Z 35 TROPICAL STORM17.2 81.7 05/21/18Z 35 TROPICAL STORM
22 M 2010
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Spatial Distribution of rainfall classification
Andhra Pradesh
22 May 2010
Kalpana-1 Visible
DISTRICT Mandal Name Rainfall (mm)
KRISHNA TIRUVURU 252.20
KHAMMAM VEMSOOR 254.40
LAT LON TIME WIND Status
17.9 82.5 05/22/06Z 30 TROPICALDEPRESSION
19 83.8 05/22/18Z 30 TROPICALDEPRESSION
23 M 2010
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Spatial Distribution of rainfall classification
Andhra Pradesh
23 May 2010
Kalpana-1 Visible
LAT LON TIME WIND Status
20 85.8 05/23/06Z 25 TROPICAL DEPRESSION
Spatial distrib tion of 24hrs rainfalls classification d ring 19 22 Ma 2010 C clone Laila
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Spatial distribution of 24hrs rainfalls classification during 19-22 May 2010, Cyclone Laila
19 May 2010 20 May 2010
21 May 2010
Rainfall source:www.apdes.gov.in
22 May 2010
Mandal wise recorded rainfalls=25cm)
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23 May 2010-chlorophyll
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25 May 2010-chlorophyll
Oceansat-2 OCM Chlorophyll-a (mg/m3)
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17 May 2010 23 May 2010 25 May 2010 27 May 2010 29 May 2010 31 May 2010
02 Jun2010
Chlorophyll-a (mg/m3)
26 May 2010
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26 May 2010
True colour image of TERRA-MODIS 500m bands
geostrophic current
Oceansat-2 OCM Chlorophyll-a (mg/m3)
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27 May 201029 May 2010
31 May 2010 02 Jun2010
Oceansat 2 OCM Chlorophyll a (mg/m3)
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TMI
geostrophic current Sea surface temperaturesimages derived through TMI
shows that these fresh water
plumes are warm (31C)
and due to cyclonic
circulation in north central
bay cooled around 0.75C.
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Case study-2 (Sep 2011),
Flooding situation
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Eastward advected plum(~400Km);
near Godavari river observed in Oceansat-2 OCM data on 29Sep2011.
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Eastward advected plume (~400Km);
near Godavari river observed in Oceansat-2 OCM data on 29Sep2011.
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FCC
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Chlorophyll-a
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TSM
Case study 3
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Case study-3
Cyclone Thane
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28 Dec 2011-07:03 Z; NOAA-19 AVHRR-FCC
Oceansat-2 Scatterometer winds
28 Dec 2011-07:03 Z; NOAA-19 AVHRR-10m BT
3 day moving average SST from TMI
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24 Dec 2011-TMI-sst28 Dec 2011-TMI-sst 30 Dec 2011-TMI-sst
01 Jan 2012-TMI-sst 02 Jan 2012-TMI-sst
y g g
30 Dec 2011-TMI-sst
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Oceansat-2 OCM Chlorophyll-a (mg/m3)
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05 Jan 2012
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VIIRS
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Internal waves
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26 Feb 2013, Oceansat-OCM (620-555-510 nm)
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26 Feb 2013, Oceansat-OCM (620-555-510 nm)
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26 Feb 2013, Metop-2 AVHRR-SST
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26 Feb 2013, Oceansat-OCM Chlorophyll-a
Date: 26.03.2011Scene:9/13
Internal waves
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Internal waves
Date: 26.03.2011Scene:9/13
Internal waves
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Internal waves
Date: 26.03.2011
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Oceansat-2 OCM Chlorophyll-a
NOAA-18 AVHRR SST Gradients
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24 Dec2012,
Oceansat-2 OCM
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24 Dec2012,
Oceansat-2 OCM
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24 Dec2012,
Metp-2 AVHRR-SST
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11 Mar 2012
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11 Mar 2012
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18 Mar 2012
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19 Mar 2012
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20 Mar 2012
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21 Mar 2012
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22 Mar 2012
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Dust storm from Oman to Gujarat
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Ascat winds
Date: 23.03.2011
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Ship tracks
Date: 23.03.2011
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Ship tracks (~600 Km)
Oil Slick identified in Oceansat-2 OCM on 01 Oct 2011 at 05:40 Z
Diffused extent ~ 34 Sq.km
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India
Srilanka
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