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Comparison of Oceansat-2 Winds with RAMA buoy Measurements in the Indian Ocean


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1 Bhavan’s Varuna Vidyalaya NPOL Campus, Thrikkakara PO, Cochin-682021, India
     

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The oceans are the potential sources of food, fuel and minerals which can support our future generations on this planet earth. They play an important role in regulating the weather and climate. Our dependence on oceans shall continue to increase in many ways. Therefore, the study of our oceans and their dynamic behaviour from space borne sensors which provides useful and widespread information to the scientific community are essential for research and development. In this regard, Oceansat-2 is the second in the series of Indian Remote Sensing (IRS) Satellite which was launched on 23 September 2009 by the Indian Space Research Organisation (ISRO), Department of Space (DOS), Government of India is currently providing wind speed and direction data (www.nrsc.gov.in) over the globe with two days repeativity. In this study, a sample Oceansat-2 winds have been compared and correlated with a selected RAMA (The Research Moored Array for African-Asian- Australian Monsoon Analysis and Prediction) buoy measurements (www.pmel.noaa.gov) in the Indian Ocean by colocating both the data in space and time. The results are quite encouraging. Such comparisons of satellite measurements with the sea truth from available locations are highly essential for validating the space borne measurements which are required for understanding the physics of the oceans, spatio-temporal variability over the oceans and predicting the atmospheric weather as well as the ocean environment, besides various other research and civilian applications.

Keywords

Oceansat-2, RAMA buoy, Validation of Satellite Winds.
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  • Comparison of Oceansat-2 Winds with RAMA buoy Measurements in the Indian Ocean

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Authors

Siddharth Swain
Bhavan’s Varuna Vidyalaya NPOL Campus, Thrikkakara PO, Cochin-682021, India
Nandu Sivadasan
Bhavan’s Varuna Vidyalaya NPOL Campus, Thrikkakara PO, Cochin-682021, India

Abstract


The oceans are the potential sources of food, fuel and minerals which can support our future generations on this planet earth. They play an important role in regulating the weather and climate. Our dependence on oceans shall continue to increase in many ways. Therefore, the study of our oceans and their dynamic behaviour from space borne sensors which provides useful and widespread information to the scientific community are essential for research and development. In this regard, Oceansat-2 is the second in the series of Indian Remote Sensing (IRS) Satellite which was launched on 23 September 2009 by the Indian Space Research Organisation (ISRO), Department of Space (DOS), Government of India is currently providing wind speed and direction data (www.nrsc.gov.in) over the globe with two days repeativity. In this study, a sample Oceansat-2 winds have been compared and correlated with a selected RAMA (The Research Moored Array for African-Asian- Australian Monsoon Analysis and Prediction) buoy measurements (www.pmel.noaa.gov) in the Indian Ocean by colocating both the data in space and time. The results are quite encouraging. Such comparisons of satellite measurements with the sea truth from available locations are highly essential for validating the space borne measurements which are required for understanding the physics of the oceans, spatio-temporal variability over the oceans and predicting the atmospheric weather as well as the ocean environment, besides various other research and civilian applications.

Keywords


Oceansat-2, RAMA buoy, Validation of Satellite Winds.

References