Improved Estimation of Shortwave Radiation Over Equatorial Indian Ocean Using Geostationary Satellite Data

An algorithm for improved estimation of daily net shortwave radiation (SWR) over the equatorial Indian Ocean is proposed in this study. This makes use of high temporal sampling by geostationary satellites (in our study, Meteosat-7) of outgoing longwave radiation and in situ observations in the equat...

Full description

Saved in:
Bibliographic Details
Published in:IEEE geoscience and remote sensing letters 2010-07, Vol.7 (3), p.563-566
Main Authors: Shahi, Naveen R, Agarwal, Neeraj, Sharma, Rashmi, Thapliyal, Pradeep K, Joshi, Prakash C, Sarkar, Abhijit
Format: Article
Language:English
Subjects:
1-D upper ocean model
Algorithms
Assessments
Boundary conditions
Clouds
Computer simulation
Earth
Empirical relation
geostationary satellite
Geostationary satellites
Indian Ocean
Meteorology
net shortwave radiation
Ocean temperature
outgoing longwave radiation
Position (location)
Sampling
Sampling methods
Satellites
Sea measurements
Sea surface
Sea surface temperature
Uncertainty
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An algorithm for improved estimation of daily net shortwave radiation (SWR) over the equatorial Indian Ocean is proposed in this study. This makes use of high temporal sampling by geostationary satellites (in our study, Meteosat-7) of outgoing longwave radiation and in situ observations in the equatorial Indian Ocean warm pool region. Results indicate significant improvement over the algorithm developed earlier with polar satellites (referred to as SH98 hereafter). The SWR accuracy with the present algorithm is better than 40 W·m -2 , while that by SH98 is greater than 50 W·m -2 at this location. The study also makes a comparative assessment of various available SWR products in simulating sea surface temperature (SST) with an Indian Ocean model at the buoy location. The study shows that SST was simulated significantly better with SWR estimated by the present algorithm in comparison to SH98.
ISSN:1545-598X
1558-0571
DOI:10.1109/LGRS.2010.2041631