Intercomparison Projects - Bulk Flux Models

Overview

Comparison coordinators: X. Zeng and M. Brunke

The purpose of this study is to evaluate bulk flux models used in satellite flux products, NWP models and climate models. The methodology for this comparison is to use high-quality research ship and buoy data sets that include direct turbulent flux measurements. Input variables from the data sets (e.g. surface winds, air temperature, humidity, SST) are used in the bulk flux models to calculate turbulent sensible and latent heat fluxes and momentum fluxes. Since the data sets do not include skin SST measurements, the flux models are run using whatever assumptions they would normally make with a bulk SST, and then run using a common skin SST derived from a bulk-skin model. Models will be evaluated against the in situ fluxes using standard univariate statistical tests. The biases will be evaluated as a function of wind speed and stability. The results will be posted on the web site, and will be subject of journal publication.

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Intercomparison Projects - Bulk Flux Algorithms - In Situ Cases

All missing data is assigned to -9999.0 in these files.

All data files are accessible via anonymous ftp to magic.gfdi.fsu.edu cd SEAFLUX/ subdirectory. Or via: http://magic.gfdi.fsu.edu/SEAFLUX/

Last modified 18 June 2001.

Project	Period	Lat./Long.	Location of Files
ArabianSea	94/10/16 to 95/10/19	15.5 N 61.5 E	arabsea_94.dat.gz
FASTEX	96/12 to 97/01	42 N 52 N to 5 W 60 W	/SEAFLUX/INSITU/ETL/FASTEX
MBL	95/04 to 95/04	36.5 N 122.5 W
SCOPE	93/09/17 to 93/09/28	33.0 N 118.0 W	/SEAFLUX/INSITU/ETL/SCOPE
ARKTIS	88/05 & 93/03	80 N 3 E 67 N 8.6 W	/SEAFLUX/INSITU/HLE/ARKTIS
FRAMZY	99/04/08 to 99/04/24	62 N 6.7 W 66 N 8.6 W	/SEAFLUX/INSITU/HLE/FRAMZY
COARE	92/11/11 to 93/02/16	1.7 S 156 E	/SEAFLUX/INSITU/ETL/COARE

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