NOAA CoastWatch East Coast Node
Data Types Info Data Types: SST         - AVHRR                 - AVHRR-VIIRS                 - Geo-Polar Blended                 - PODAAC MUR Chl-a       - MODIS                 - OLCI (HiRes)                 - VIIRS Clarity     - K490 (MODIS)                 - K490 (MODIS HiRes)                 - K490 (OLCI HiRes)                 - K490 (VIIRS)                 - Rrs667 (MODIS)                 - Rrs672 (VIIRS)                 - TSM (MODIS HiRes)                 - TSM (OLCI HiRes)                 - TSM (VIIRS HiRes) True Color (VIIRS)
Data Access Info HTTP Rolling Archive FTP Time Series Archive
Region Info Regions: U.S. East Coast North East Coast Gulf of Maine Massachusetts & RI Bays Mid-Atlantic Coast NY-NJ Bight & Long Island Sound Chesapeake & Delaware Bays South East Coast Carolina Coast Florida - Georgia Coast
CoastWatch Utilities Time Series Tool ERDDAP MGET Experimental Algal Bloom Monitor

 

NASA PODAAC Multiscale Ultrahigh Resolution (MUR)
Sea Surface Temperature

PODAAC MUR SST example, U.S. East
Coast, July 30, 2015
Figure: PODAAC MUR SST for July 30, 2015

Data Set Validation:

NOAA CoastWatch East Coast Node validated the PODAAC MUR SST for estuaries, using in-situ data from Chesapeake Bay. In-situ monthly water quality montinoring surface data were obtained from the Chesapeake Bay Program (CBP) for the years 2003-2016 for 40 stations in the Chesapeake Bay's main stem. A MUR SST 3x3 grid cell average was calculated for each station's location and day of data collection, resulting in 7821 match-up pairs.

Match-up pairs sorted by year show that later years have smaller bias and smaller RMSE:
MUR vs CBP SST Scatter Plot of Match-up Pairs By Year, 2003-2016

Match-up pairs sorted by region show that the southernmost region has the smallest bias and smallest RMSE:
MUR vs CBP SST Scatter Plot of Match-up Pairs By Region, 2003-2016


Annual averages at three CBP stations show that earlier years and the northern stations have distinct low SST values in the MUR SST data, compared to the CBP annual averages:
MUR vs CBP SST Annual Averages at 3 CBP stations in Chesapeake Bay

The low bias is due to older versions of several input satellite data sets for the earlier years (2002-2006) used by PODAAC in generating the MUR data set.

As a result, for estuarine subsets (for example, Long Island Sound), NOAA CoastWatch East Coast Node only makes the years 2007 and forward available, representing the time period with the least bias comparied to the in-situ data. Additionally, for Chesapeake Bay, only the southern portion of the Bay is used for calculating the time series statistics. For other estuaries, the entire estuary's spatial extent is used in the time series statistics.

Other MUR SST Validation Activities:

Castro, S.L., G.A. Wick, and M. Steele. 2016. Validation of satellite sea surface temperature analyses in the Beaufort Sea using UpTempO buoys, Remote Sensing of Environment, vol. 186, 458-475, http://doi.org/10.1016/j.rse.2016.10.035


Data Access
  • See the Data Access page for data access options.
  • Or use Direct Download to retrieve data files by time-interval and region:


 
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