The CLAVR-1 cloudmask (Stowe, 1999) is used to cloudmask AVHRR high resolution sea surface temperature products. The cloudmask runs a series of tests on each surface temperature pixel to determine whether the pixel is contaminated by cloud cover. Users may evaluate which specific tests in the cloudmask returned positive cloud presence results by examining the value of the cloudmask. This value corresponds to an 8 bit binary number which details which tests flagged the pixel as a cloudy pixel. See http://coastwatch.pfel.noaa.gov/info/CLAVR.html for more information regarding the specific tests used in the cloudmask.

Reynolds, et al.(2007) Daily High-resolution Blended Analyses. Background information is available at http://dss.ucar.edu/datasets/ds277.7/docs/daily-sst.pdf. Climatology is based on 1971-2000 OI.v2 SST, Satellite data: Navy NOAA17 NOAA18 AVHRR, Ice data: GSFC ice.

MODIS measures photosynthetically available radiation that may be used to mode primary productivity. THIS IS AN EXPERIMENTAL PRODUCT: intended strictly for scientific evaluation by professional marine scientists.

NASA distributes Diffuse Attenuation Coefficient at 490 nm Wavelength data from NASA's Aqua satellite. Measurements are gathered by the Moderate Resolution Imaging Spectroradiometer (MODIS) carried aboard the spacecraft.

NOAA CoastWatch distributes near real time wind divergence data originating with wind velocity measurements from the ASCAT instrument onboard EUMETSAT's ASCAT satellite. ASCAT is a microwave scatterometer designed to measure surface winds over the global ocean. Wind velocity is processed to wind divergence by NOAA CoastWatch.

NOAA CoastWatch distributes science quality wind stress data in zonal, meridional, modulus, and wind stress curl sets. This data begins with wind velocity measurements from the SeaWinds instrument onboard NASA's QuikSCAT satellite. SeaWinds is a microwave scatterometer designed to measure surface winds over the global ocean. NOAA CoastWatch processes wind velocity to wind stress and wind stress curl.

Remote Sensing Inc. distributes science quality wind velocity data from the SeaWinds instrument onboard NASA's QuikSCAT satellite. SeaWinds is a microwave scatterometer designed to measure surface winds over the global ocean. Wind velocity fields are provided in zonal, meridional, and modulus sets. The reference height for all wind velocities is 10 meters.

MODIS measures the remote sensing reflectance (Rrs) at 667nm. This can be used to view very high concentrations of phytoplankton in the very surface of the water.

MODIS data is used to develop an index of the amount of chromophoric dissolved organic material (CDOM) in the surface waters. CDOM absorbs heavily in the blue wavelengths and thus can skew many derived products, especially in coastal waters.THIS IS AN EXPERIMENTAL PRODUCT: intended strictly for scientific evaluation by professional marine scientists.

CNR ESSI-Lab GI-axe server. Contact: http://essi-lab.eu. GI-axe is a distributed software system providing mediation-based access/processing services to geospatial data.