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In this paper, we develop a novel geophysical model function (GMF) for the WindSat radiometer relating the vertically (V-pol) and horizontally (H-pol) polarized brightness temperature (TB) to the ocean surface wind field. The brightness temperature data from the 10,18 and 37 GHz channels were used in this analysis. The brightness temperature combination of the form (AV-H) is found to be mostly independent...
The normalized radar cross section (NRCS) of ocean surface is measured from three directions of illumination by an airborne dual-frequency synthetic aperture radar(SAR) with L- and X-band, and the dependency of the NRCS and the polarimetric ratio on the relative wind direction is analyzed. In X-band, the NRCSs in parallel polarizations represent the dependency on the relative wind direction. The NRCS...
A coherent scattering formulation is developed for radar remote sensing of Sahelian grassland. This African vegetation is composed of shrubs and annual grass. The proposed model includes a vegetation generator tool in order to create vegetation structure with realistic architectures and botanical information. This is important in the development of the coherent scattering model, since the relative...
Hydrocarbon microseepage theory establishes a cause-and-effect relation between oil and gas reservoirs and special surface anomalies, mainly including surface hydrocarbons and related mineral alterations. Thus, diagnostic spectral features of hydrocarbons and mineral alterations are capable of providing reliable evidences for the oil and gas exploration. In the paper, the integrated practical system...
Understanding the spatial and temporal variation in carbon fluxes is essential to constrain models that predict climate change. However, our current knowledge of spatial and temporal patterns is uncertain, particularly over land. The ESA GLOBCARBON project aims to generate estimates of at-land products quasi-independent of the original Earth Observation source for use in Dynamic Global Vegetation...
Remote sensing is a fast growing technology with an increasing need for highly qualified employees. Especially in governmental sectors regarding ecology, disaster management, or traffic control the need for data and applications is growing rapidly. The increasing amount of remote sensing satellite missions and the generated products also mirrors this development. By contrast the public perception...
The NSF Science and Technology Center for the Remote Sensing of Ice Sheets (CReSIS) combines the expertise of researchers from 6 universities, several industries, and federal laboratories to study and conduct research to achieve a better understanding of the mass balance of the polar ice sheets. CReSIS is the only NSF Science and Technology Center dedicated to developing techniques and technologies...
Much local government has been utilizing the large scale digital map with Geographic Information System (GIS). GIS will be able to efficiently work and to reduce mapping costs. However, the maintenance and renewal of a map database need much labors and time. However, the updating method of a map is not established yet and, there is little successful example. The purpose of this study is establishment...
Government has to hurry up to build accessible facilities for elderly people and people who has disabilities. Because our country is experiencing an aging society, for example, pedestrian space should be safe and give a relief. One of the methods to ensure this society is to obtain absolute position with high accuracy. Therefore, we suggested here to make Universal Map (UM) with a large scale (1/500...
An advanced DInSAR technique called Coherent Pixels Technique (CPT) has been used to measure the subsidence existing in Orihuela city (Spain) during the period 1993-2001 due to ground water level fall. The estimated subsidence, with values lower than 7 cm, is highly influenced by soil geotechnical conditions like the deformable soil thickness. In addition, the wells location is an important subsidence...
Under flood events, the ground traffic is blocked in and around the flooded area due to damages to roads and bridges. The traditional transportation network may not always help people to make a right decision for evacuation. In order to provide dynamic road information needed for flood rescue, we developed an adaptive web-based transportation network application using Oracle technology. Moreover,...
The forest damage (fallen trees) by a typhoon or a strong wind is frequently generated in recent years. For example, typhoon SONGDA (2004.09) brought about destructive strong winds to almost western half of Hokkaido. According to a temporary report issued by Japan Meteorological Agency, in Sapporo, 50.2 m/s was recorded as a maximum instantaneous wind speed in the history of observation. This typhoon...
The OMEGA instrument onboard of ESA's Mars Express mission is the first hyperspectral sensor that has collected data from Mars. The OMEGA team has shown that Mars has considerable surface compositional variation. Spectral interpretation and mineral mapping, however, is difficult on a pixel-by-pixel basis due to sensor noise, an atmosphere dominated by carbon dioxide and especially an unknown surface...
The National Aeronautics and Space Administration (NASA) released a request for proposals (RFP) on January 09, 2007 for an Operational Land Imager (OLI). The RFP specified the OLI as the principal sensor for the Landsat Data Continuity Mission (LDCM), the successor mission to Landsat 7. The RFP provides requirements for OLI performance, special calibration tests, and mission assurance without specifying...
Forest canopy height derived from the SRTM-NED were compared to three LIDAR vegetation metrics for the Sierra Nevada forest. Generally the SRTM-NED was found to under estimate the vegetation canopy height. The SRTM SAR signal was found to penetrate, on average, into 44% of the canopies. The residual errors as a function of LVIS canopy height and cover were found to generally increase with height and...
The utility of an image is an attribute that describes the ability of that image to satisfy performance requirements for a particular application task. The robust ability to predict the utility of an image for a given application would facilitate sensor design trade studies, provide a basis for tasking image collection activities, and create the foundation for an image archive indexing scheme. In...
The spatial organization of above-ground plant material plays an important role in controlling not only plant functional activities like photosynthesis and evapotranspiration, but also the photo-vegetation interactions. To improve our understanding of such interactions, the acquisition of highly detailed information about the 3D architecture of individual plants and communities of plants is required...
In this paper it is genuinely proposed to use a modified phase correlation (MPC) based supervised classification approach for hyperspectral images. The hyperspectral spectrum of each pixel is initially subsampled to gain robustness against noise and spatial variability, and phase correlation is applied to determine spectral similarity to class feature vectors. For this purpose it is required to obtain...
The small hyperspectral imager CHRIS is the principal instrument for the remote sensing on board of the ESA Proba-1 satellite. The platform can tilt itself in the orbit allowing the acquisition of images with different angle over the same area and during the same overpass. In this work we report on the potentialities of such instrument in producing land cover maps. The images that we are using have...
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