source: trunk/adm/website/overview.rst @ 53

Last change on this file since 53 was 53, checked in by pinsard, 11 years ago

fill website pages

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[53]7.. outline overvieuw vs home
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[53]23.. _overview:
[53]28The TropFlux project aims at providing daily, timely, accurate air-sea heat  flux data for the entire 30°N-30°S region.
[53]30The four components of net surface heat flux are currently available for the entire 1989-2010 period. We are currently working on a regular (~monthly) update of the TropFLux product until 3-4 months behind realtime, which should be available by 2012.
[53]32TropFlux is largely derived from a combination of `ERA-I <>`_ re-analysis data for turbulent and longwave fluxes, and `ISCCP <>`_ surface radiation data for the shortwave flux. All input products are bias- and amplitude-corrected on the basis of `Global Tropical Moored Array <>`_ data, before surface net heat flux is computed using the `COARE v3 bulk algorithm <>`_. A precise description of the flux computation procedure, as well as a detailed evaluation against other timely, daily air-sea heat flux alternatives (OAFLUX, NCEP, NCEP2, ERA-I) is provided in `Praveen Kumar et al. (2011) <>`_.
[53]34We believe that this product  offers the following advantages:
35- better variability and less biases than re-analysis fluxes (and equivalent performance to OAFLUX)
36- available until the end of 2010, and soon updated every month, lagging realtime by ~3 months
37- a simple estimate of surface shortwave radiation is provided from  OLR data, as a near-realtime alternative to the more accurate but irregularly updated ISCCP data
[53]39The TropFLux product has been developed under a collaboration between `Institut Pierre Simon Laplace <>`_, France and `National Institute of Oceanography <>`_, India.
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