Effect of air-sea exchange parameters on ocean model simulations: comparison with TRITON observations

Vijay K. Agarwal; Rashmi Sharma; Neeraj Agarwal

doi:10.1117/12.693676

8 December 2006 Effect of air-sea exchange parameters on ocean model simulations: comparison with TRITON observations

Vijay K. Agarwal, Rashmi Sharma, Neeraj Agarwal

Proceedings Volume 6404, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions; 64040S (2006) https://doi.org/10.1117/12.693676
Event: SPIE Asia-Pacific Remote Sensing, 2006, Goa, India

Abstract

A detailed analysis and validation of ocean thermodynamic variables, simulated, using an Ocean general circulation Model (OGCM) forced by QuikSCAT scatterometer (QS-R) has been carried out in this study. The results are discussed in terms of comparison of vertical profiles of temperature against TRITON observations for the year 2004. Root mean square error (RMSE) of Sea Surface Temperature (SST) simulated by QS-R showed an error of the order of 0.6°C. QS-R SST also has a cooler bias. Another OGCM simulation was carried out in which the National Center for Environmental Prediction (NCEP) reanalysis winds (NCEP-R) were used to force the OGCM. The simulated SST resulted in lesser RMSE (~0.5°C) and there was no bias. However, variabilities in SST were captured more realistically in scatterometer forced solution. However the RMSE in SST was higher which could be partly due to physical inconsistency between scatterometer winds and other air-sea exchange parameters used from NCEP. A detailed statistics of the model simulated temperatures at different depths show excellent performance of scatterometer forced simulations as compared to NCEP-R. Maximum error in the temperature profile was in the thermocline region (~1.5°C) in QS-R as against 3.5°C in NCEP-R. Possible causes of these errors in relation to air-sea exchange parameters used in forcing the OGCM are described in this work.

Citation Download Citation

Vijay K. Agarwal, Rashmi Sharma, and Neeraj Agarwal "Effect of air-sea exchange parameters on ocean model simulations: comparison with TRITON observations", Proc. SPIE 6404, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions, 64040S (8 December 2006); https://doi.org/10.1117/12.693676

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Heat flux

Solar radiation models

Data modeling

Atmospheric modeling

Sensors

Climatology

Error analysis

Show All Keywords

Keywords/Phrases

Search In:

Publication Years