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State of the art satellite and airborne marine oil spill remote sensing: Application to the BP Deepwater Horizon oil spill" (2012). NASA Publications. Paper 117. a b s t r a c t a r t i c l e i n f o Keywords: Oil spill Deepwater Horizon Remote sensing Lidar Near infrared Thermal infrared Satellite Airborne remote sensing Synthetic aperture radar MODIS(More)
—We analyze the fully-polarimetric Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) data acquired on June 23, 2010, from two adjacent, overlapping flight tracks that imaged the main oil slick near the Deepwater Horizon (DWH) rig site in the Gulf of Mexico. Our results show that radar backscatter from both clean water and oil in the slick is(More)
An approach for identification of sea ice types in spaceborne synthetic aperture radar (SAR) image data is presented. The unsupervised classification approach involves cluster analysis for segmentation of the image data followed by cluster labeling based on previously defined look-up tables containing the expected backscatter signatures of different ice(More)
This paper examines the capability of synthetic aperture radar imagery from ERS-1 and buoys to track the wave field emanating from an intense storm over a several day period. The first part of the study is a validation component that compares SAR-derived wave length and direction with buoy data from two locations from 10 different dates in late 1991. When(More)
Ischemic preconditioning is a phenomenon in which low-level stressful stimuli upregulate endogenous defensive programs, resulting in subsequent resistance to otherwise lethal injuries. We previously observed that signal transduction systems typically associated with neurodegeneration such as caspase activation are requisite events for the expression of(More)
Sea ice is generally covered with snow, which can vary in thickness from a few centimeters to >1 m. Snow cover acts as a thermal insulator modulating the heat exchange between the ocean and the atmosphere, and it impacts sea-ice growth rates and overall thickness, a key indicator of climate change in polar regions. Snow depth is required to estimate sea-ice(More)
Image overlay of fluorescently labeled cultured mouse hippocampal neurons transfected with green fluorescent protein and Ca v 1.3 Ca 2ϩ channels (background; green and red), or densin-GFP (foreground; blue), which colocalizes with PSD-95 (red) in dendritic spines (white). Together with Ca 2ϩ / calmodulin-dependent protein kinase II, densin mediates a novel(More)