IEEE International Geoscience and Remote Sensing Symposium

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Automatic registration of radar imagery
IEEE International Geoscience and Remote Sensing Symposium - Tập 4 - Trang 2465-2467 vol.4
L.M.G. Fonseca, M.H.M. Costa, S.P. Castellari
Registering radar imagery is not an easy task since the images may be heavily contaminated with noise. Strong speckle noise can produce artifacts that mimic good control points and may produce low precision or even wrong registration. This article presents an automatic registration method that tries to overcome these problems. The method was originally developed for optical images and adapted for ... hiện toàn bộ
#Radar imaging #Image resolution #Spatial resolution #Signal resolution #Wavelet transforms #Filters #Automatic control #Feature extraction #Image edge detection #Image registration
Effects of temperature and moisture of snow and soil on SSM/I response to snow
IEEE International Geoscience and Remote Sensing Symposium - Tập 1 - Trang 680-682 vol.1
M. Hallikainen, P. Halme, M. Takala, J. Pulliainen
The response of the SSM/I microwave radiometer to snow-covered terrain in Finland is investigated using data for the winters of 1996-97, 1997-98, and 1998-99. The effect of temperature to the brightness temperature of dry snow is examined and a method is proposed to reduce snow/soil temperature-caused fluctuations in the brightness temperature. The feasibility of the method is verified.
#Snow #Moisture #Soil #Testing #Brightness temperature #Space technology #Microwave radiometry #Satellite broadcasting #Microwave technology #Laboratories
The Global Hawk UAV Australian deployment: imaging radar sensor modifications and employment for maritime surveillance
IEEE International Geoscience and Remote Sensing Symposium - Tập 2 - Trang 699-701 vol.2
N.J.S. Stacy, D.W. Craig, J. Staromlynska, R.B. Smith
The Global Hawk system is a high altitude endurance unmanned aerial vehicle developed under the United States Air Force Advanced Concept Demonstrator program primarily as a reconnaissance system for use against fixed and mobile targets. The Global Hawk system deployed to Australia in April 2001 for six weeks and in this period conducted 11 missions with the focus on maritime surveillance. The Aust... hiện toàn bộ
#Unmanned aerial vehicles #Australia #Radar imaging #Image sensors #Employment #Surveillance #Reconnaissance #Sensor systems #Force sensors #Collaboration
Calibration and validation of the Shuttle Radar Topography Mission height data for southeastern Michigan
IEEE International Geoscience and Remote Sensing Symposium - Tập 1 - Trang 167-169 vol.1
K. Sarabandi, C.G. Brown, L. Pierce, D. Zahn, R. Azadegan, K. Buell, M. Casciato, I. Koh, D. Lawrence, M. Park
The Shuttle Radar Topography Mission (SRTM) provided data for detailed topographical maps of about 80% of the Earth's surface. SRTM consisted of single-pass C-and X-band interferometric synthetic aperture radars (INSARs). In order to apply SRTM data to remote sensing applications the data must be calibrated and validated. This paper presents the University of Michigan's SRTM calibration and valida... hiện toàn bộ
#Calibration #Surfaces #Synthetic aperture radar interferometry #Radar remote sensing #Remote sensing #Vegetation mapping #Space shuttles #Radar imaging #Polarization #Radar polarimetry
Sea ice microstructural characteristics in the Barents Sea in autumn: relevance to microwave remote sensing
IEEE International Geoscience and Remote Sensing Symposium - Tập 4 - Trang 2176-2178 vol.4
T. Maksym, M. Van Woert, W. Dierking, S.V. Nghiem
The microstructural characteristics of sea ice during autumn freeze-up in the Barents Sea were measured during a microwave remote sensing validation campaign aboard the US Coast Guard icebreaker Healy during October-November 2001. Ice samples were obtained from 16 ice floes and digital images of the thin and thick sections were taken to examine the characteristics of the brine and void structure. ... hiện toàn bộ
#Sea ice #Electromagnetic heating #Geometry #Remote sensing #Electromagnetic scattering #Microstructure #Ice thickness #Backscatter #Ocean temperature #Shape
A strategy for mapping Canada's Forest biomass with Landsat TM imagery
IEEE International Geoscience and Remote Sensing Symposium - Tập 3 - Trang 1312-1315 vol.3
J.E. Luther, R.A. Fournier, R.J. Hall, C.-H. Ung, L. Guindon, D.E. Piercey, M.-C. Lambert, A. Beaudoin
Estimates of forest biomass are needed to meet Canada's international reporting requirements and to provide important inputs for global change, carbon accounting, and forest productivity models. The Canadian Forest Service, in cooperation with the Canadian Space Agency, has developed a strategy for mapping Canada's forest biomass as part of the Earth Observation for Sustainable Development of Fore... hiện toàn bộ
#Biomass #Satellites #Remote sensing #Ecosystems #Sustainable development #Remote monitoring #Productivity #Earth #Data mining #Space technology
Can internal tidal waves be observed by ocean color satellite sensors?
IEEE International Geoscience and Remote Sensing Symposium - Tập 3 - Trang 1591-1593 vol.3
J.C.B. da Silva, A.L. New, M. Srokosz
Reveals bands of enhanced levels of near-surface chlorophyll in the central Bay of Biscay in remotely-sensed images from the SeaWiFS ocean colour sensor, and shows that these are most probably associated with the crests of internal tidal waves travelling away from the shelf break. We are able to explain this effect as likely to result from the uplifting of a subsurface chlorophyll maximum by the p... hiện toàn bộ
#Satellites #Tides #Remote sensing #Image sensors #Ocean temperature #Physics #Surface waves #Sea surface #Surface topography #Dispersion
Sea-surface temperature measured by the Moderate Resolution Imaging Spectroradiometer (MODIS)
IEEE International Geoscience and Remote Sensing Symposium - Tập 2 - Trang 1177-1179 vol.2
P.J. Minnett, R.H. Evans, E.J. Kearns, O.B. Brown
The Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Earth Observing System satellites Terra and Aqua include infrared bands that are designed for the accurate measurement of sea-surface temperature (SST). In addition to the conventional 'split-window' bands in the 10-12 /spl mu/m atmospheric window (similar in spectral properties to the corresponding channels of the heritage inst... hiện toàn bộ
#Temperature measurement #MODIS #Atmospheric measurements #Radiometry #NASA #Earth Observing System #Satellite broadcasting #Infrared imaging #Infrared spectra #Instruments
Incidence angle dependence of the mean C-band HH-polarization backscattering signatures of the Baltic Sea ice
IEEE International Geoscience and Remote Sensing Symposium - Tập 3 - Trang 1518-1520 vol.3
M. Makynen, T. Manninen, M. Simila, J. Karvonen, M. Hallikainen
RADARSAT ScanSAR Narrow images are currently utilized operationally by Finnish Ice Service to monitor Baltic Sea ice conditions. Automatic identification of different ice types and open water in the SAR images is studied by the Finnish Institute of Marine Research (FIMR). Successful implementation of the classification algorithms is complicated due to the significant changes in backscattering leve... hiện toàn bộ
#Backscatter #Snow #Radar measurements #Sea measurements #Sea ice #Spaceborne radar #Space technology #Rough surfaces #Surface roughness #Sea surface
Sea ice classification using multi-frequency polarimetric SAR data
IEEE International Geoscience and Remote Sensing Symposium - Tập 3 - Trang 1914-1916 vol.3
B. Scheuchl, I. Hajnsek, I. Cumming
This paper discusses the capability of the complex Wishart classifier for sea ice and classification using multifrequency, fully polarimetric SAR data. C-, L-, and P-band data acquired by the JPL AIRSAR in the Beaufort Sea was used. Classification using the unsupervised Wishart classifier is a two-stage process. An initial classification is required to seed the algorithm and can be derived using o... hiện toàn bộ
#Sea ice #Layout #Synthetic aperture radar #Spaceborne radar #Remote monitoring #Light scattering #Aerospace engineering #Radio frequency #Radar polarimetry #Electronic mail
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