Data Feature
June 10, 2009
JPL OurOcean Portal includes WRF winds from Prince William Sound. WRF Wind data can be downloaded from this web site. "The UCLA atmospheric forecast is simulated with the WRF mesoscale model, using resolved convection and a specialized boundary layer parameterization. The 48-hour forecasts are initialized daily with 06Z NAM forecasts from NCEP. Shown are variables from the innermost domain, which has a 4-km horizontal resolution." JPL OurOcean Portal
The image shown below is the result of viewing the WRF 10m Wind Speed for June 9th.
User's Guide to Entering the Portal -- screen shots that walk you through investigating the near real time data with this tool. Under development, not all features are explained, as not all data is live/available.
Temperatures are rising, snow is melting, sea ice is retreating, and the spring bloom is in full swing in the northern Gulf of Alaska (shown in this MODIS Aqua chlorophyll-a image).
See more images like this one in the AOOS image archive for the first week of May. http://ak.aoos.org/op/data_archive.php?region=AK&name=modis_chla.
PAST FEATURES
Nice ice - Sea Ice Concentration (daily average plus animation)
Definitions
MODIS - from Wiki (MODIS) Moderate-resolution Imaging Spectroradiometer
There are two MODIS Satellites "Aqua" and "Terra"
February 28, 2009 NSIDC confirmed the maximum sea ice extent for 2008/2009. Read the news release or view the live data.
-credit: inset graph - National Snow and Ice Data Center; Map with ice extent - AOOS
February 24, 2009, MODIS image of sea surface temperature in Southeast Alaska shows warmer waters from the south propagating northward along the Alaska coast. There is a lot of variability visible in the flow, which may be a mechanism for exchange between the nearshore and offshore environments. The image also shows the strong temperature gradient (~2°) between the waters in the fjords and those in the Gulf of Alaska.
The data used to create this image is available in hdf and GeoTIFF formats. Many other data formats are available from AOOS upon request.
Thank you
Rachel Potter Oceanographer, IMS
Image source - AOOS
Please contact Rachel Potter (rpotter@ims.uaf.edu) with any questions about the MODIS image, and if you download the image, we request that you would please credit AOOS as the image source.
The Alaska Ocean Observing System is building a network of observation platforms and forecast models. The goal of this network is to provide information products and tools to improve our understanding of Alaska’s ocean ecosystem and allow us to make better decisions about our use of the marine environment.
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University of Alaska Fairbanks School of Fisheries and Ocean Sciences.
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