Comparison of AMSR-E and TMI sea surface temperature with Argo near-surface temperature over the Indian Ocean

$61.20 plus tax (Refund Policy)

Buy Article:

Abstract:

Sea surface temperature (SST) measurements from the Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) and the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) are compared with near-surface temperature (foundation SST) in situ measurements obtained from Argo floats over the Indian Ocean. Spatial variation was compared for 2002-2006 and 11 floats were used for temporal variation collocated observations. The results show that TMI and AMSR-E SST measurements are slightly overestimated during the pre- and post-monsoon seasons and underestimated during the monsoon season. Statistical analysis shows that the SST from the AMSR-E is better correlated with the Argo foundation SST compared to the TMI. The standard deviation (SD) and root mean square error (RMSE) for AMSR-E SST are 0.58°C and 0.35°C, respectively, over the Equatorial Indian Ocean (EIO). The corresponding values for the TMI are 0.66°C and 0.47°C. Over the Arabian Sea the SD values are slightly higher compared to the EIO values, whereas RMSE values are less for both TMI and AMSR-E SST. These retrieval accuracies are above the expected retrieval accuracy. The seasonal average spatial distribution of AMSR-E SST shows a better match with the Argo foundation SST compared to TMI SST distributions. The robustness of the good spatial match during the monsoon season may be attributed to strong winds.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/01431160802555796

Affiliations: 1: Indian National Centre for Ocean Information Services (INCOIS), Ministry of Earth Sciences (MoES), Hyderabad 500055, India 2: Department of Atmospheric and Space Sciences, University of Pune, Pune, India

Publication date: January 1, 2009

More about this publication?
Related content

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more