Identify Find all ASAR available that covers the site 23051 location Start from September 2011 and work backward First, find all ASAR images listed in EoLisa Then find those images in Miravi - use only the date as a filer and then page through the results to find the image Make a spreadsheet with the dates Acquire Download the jpeg from Miravi - store in Fred Use the original filename Put files in a folder with the date as the name of the folder like this '2011-10-09' Files go under //Fred/DataSets/Satellite Image Archive/Gulf of Mexico/Site 23051/Site 23051 ASAR Use the georeference utility to capture the gcp file and store in the same folder with the image. from the command line: python asar-gcp.py KEY gcp.points Get KEY by using firebug on the miravi site and then looking at the content of the POST tab after you click on the image in the miravi search results Georeference Georeference acquired images using corner point gcp file and store in the same folder with the original. name the new file: asar_site23051_YYY-DD-MM-georef-approx-full.tif replace the date with the dat of the image of course. Clip Clip the georeferenced image TBD: Find a bounding box that is as big as possible without triggering GE to make a superoverlay when you load it Save the clipped file in the same folder as the original and name it: asar_site23051_YYY-DD-MM-georef-approx-clip.tif Evaluate load the clipped image into GE and determine if a slick is visible around the 23051 site Determine if the image is fairly clear of other features that are likely caused by wind in the vicinity of the 23051 platform - skip the image if there is too much noise to see the slick clearly Annotate If a good slick is visible draw a polygon around the boundary and annotate with arrows Document total length, width at the widest point, and total area Publish Create page on the labs site where you will publish it Put a link to the labs site page in the description of the top folder in the KMZ Write a description of the slick in the labs page and in the KMZ - they should both have the same content and each should have a link that points to the other Look for an NRC report that corresponds to that location and date - and if it looks like a match, put a link to it in the description Save annotated image as KMZ publish KMZ to the labs page |
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