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Showing 1 to 8 of 8 for “"sigma-0"”.
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Study of the Origins of the Sigma-0 Blooms
… values of the ocean's radar cross section, sigma-0, were observed by scientists at the NASA Goddard Space Flight Center. These phenomena have been referred to as sigma-0 blooms, and are accompanied by an increase in noise in the significant wave height (SWH) and altitude measurements. Since …
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Oceanic Rain Identification Using Multifractal Analysis Of Quikscat Sigma-0
The presence of rain over oceans interferes with the measurement of sea surface wind speed and direction from the Sea Winds scatterometer and as a result wind measurements contain biases in rain regions. In past research at the Central Florida Remote Sensing Lab, it has been observed that rain has …
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A Scan of the Cross Section of the Reaction (Antiproton + Proton Going to Antilambda + Sigma-0 and Charge Conjugate) From Threshold to 2.5 MeV Excess Energy
The total cross section of the reaction pp→LS0+c. c. at ten momentum values within 2.5 MeV of threshold was measured using the Low Energy Antiproton Ring (LEAR) at CERN. The cross section was normalized against the similar reaction pp→LL and a novel background estimation using …
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A New Method for Melt Detection on Antarctic Ice-Shelves and Scatterometer Calibration Verification
… ice-shelves. The normalized radar backscatter (sigma-0) and backscatter polarization ratio (PR) are used in the maximum likelihood estimation of the ice-state. This method is used to infer the daily ice-surface conditions for 25 selected study points located on the Ronne, Ross, Larsen, Fimbul, …
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Asymptotic Expansions for Studentized M-Estimators With Applications to Multiple Comparisons
… M-estimates of location and scale, (theta) and (sigma), are defined as(, )^roots of the equations (SIGMA)(,i)(psi)((Y(,ij)-(theta)(,j))/(sigma)) = 0, j = 1(1)(,p) and (SIGMA)(,j)(SIGMA)(,i)(chi)((Y(,ij)-(theta)(,j))/(sigma)) = C. The Studentized location statistics T(,j) = …
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Edge coloring of simple graphs and edge -face coloring of simple plane graphs
… Delta ≥ 3 and g ≥ 9. In addition, if chi(Sigma) > 0, then chie( G) = Delta if Delta ≥ 3 and g ≥ 8 where Delta, g is the maximum degree, the girth of the graph G, respectively.;It is proved that G is not critical if d¯ ≤ 6 and Delta ≥ 8, or d¯ ≤ 203 and Delta ≥ …
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Microwave Remote Sensing of the Greenland Ice Sheet: Models and Applications
… of the normalized radar cross-section (sigma-0) over the Greenland ice sheet is modeled with a simple surface scattering model. The model assumes that azimuth anisotropy in 1-100 meter scale surface roughness is the primary mechanism driving the azimuth modulation. This model is inverted …
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High Resolution Wind Retrieval for SeaWinds on QuikSCAT
<p>An algorithm has been developed that enables improved the resolution wind estimates from SeaWinds data. This thesis presents the development of three key portions of the high resolution wind retrieval algorithm: Compositing individual σ-0 measurements and Kp, Retrieved wind bias correction, and …