IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)最新文献
{"title":"The impact of changing surface albedo in climate models","authors":"J. Katzfey, R. Cechet","doi":"10.1109/IGARSS.2001.976564","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976564","url":null,"abstract":"A regional modelling study employing new and improved land surface albedos from Advanced Very High Resolution Radiometer (AVHRR) satellite measurements is presented as a sensitivity comparison. The \"new\" albedo dataset is compared to the \"old\" over an area covering approximately the eastern half of the Australian continent, which is dominated by midlatitude arid and semi-arid desert regions. As expected, there is a strong correlation between lower albedo values and increased monthly averaged maximum temperatures. There is little effect on monthly averaged minimum temperatures.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133305627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"You be the scientist with satellite imagery in EZ/EC communities: IEEE 2001 International Geoscience and Remote Sensing Symposium","authors":"L. Hayden","doi":"10.1109/IGARSS.2001.978039","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978039","url":null,"abstract":"You Be The Scientist With Satellite Imagery (YBTS) in Empowerment Zone (EZ) and Enterprise Community (EC) is designed as a student enrichment project for 6 targeted middle schools located in the communities of Portsmouth, Virginia and Halifax, North Carolina. The student enrichment component is designed to support extra curricular science activities structured to maximize awareness of and utilization of GOES satellite data to meet core Earth Science learning objectives and to develop marketable skills in the area of computer technology. The goals of the YBTS program include: 1) Providing teachers and students with an understanding of satellite imagery concepts; 2) Sharing with students information on careers critical to NASA's overall mission; and 3) Sharing with students and educators information related to NASA's earth science enterprise. Implementing this project is Elizabeth City State University (ECSU), at which the MU-SPIN Office of Goddard Space Flight Center (GSFC) has established a Network Resources and Training Site. ECSU brings satellite imagery to middle schools in its region in an effort to enhance the study of mathematics and science by under-represented minority student. The program is designed to aggressively strengthen the current Earth System Science outreach to EZ/EC middle schools by GSFC and the ECSU-NRTS. YBTS enhances the student's understanding of fundamental remote sensing concepts. These concepts include: air masses of the earth; atmospheric absorption; cloud types and movement; cloud height and temperature; cold fronts; the Coriolis effect; the diurnal cycle; fire detection; the Gulf Stream; high level clouds; the jet stream. and the intertropical convergence zone.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133350898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Tapley, M. Crawford, T. Howard, K. Hutchison, S. Smith, G. Wells
{"title":"Application of EOS Core System data and data products for monitoring and mitigating natural disasters","authors":"B. Tapley, M. Crawford, T. Howard, K. Hutchison, S. Smith, G. Wells","doi":"10.1109/IGARSS.2001.976649","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976649","url":null,"abstract":"A primary goal of the Texas Synergy I program was to evaluate the utility of high temporal resolution data acquired at coarse spatial resolution for assessment of regional conditions and early detection of environmental changes. Three sample applications are shown to emphasize the use of EOS Core System (ECS) data for these purposes. (1) A multi-year Normalized Difference Vegetation Index (NDVI) composite of cloud-free sequences over Texas was developed by Center for Space Research (CSR) to demonstrate the severity of the year 2000 drought. The NDVI time series products illustrate precipitation trends qualitatively and highlight the drought's impact on vegetation across the state of Texas. (2) Similarly, the daily Sea-viewing Wide Field-of-view Sensor (SeaWiFS) chlorophyll data product derived by CSR using NASA's SeaWiFS Data Analysis System (SeaDAS) software provided useful information on the extent of a red tide event that developed along the entire Texas coast in the fall of 2000. Several samples of Moderate Resolution Imaging Spectro radiometer (MODIS) data, with their improved spatial resolution and spectral calibration, indicated a potential for low cost monitoring of biological signatures in the ocean. (3) Finally, severe weather in West Texas, exacerbated by the drought conditions of spring 2000, ignited a 47000 acre wildfire in the Glass Mountains. CSR downloaded and processed ECS data imaged during and after the fire event. Several 2D and 3D data products demonstrated the integration of 30-m digital elevation models and GIS data layers with Landsat 7 Enhanced Thematic Mapper Plus (ETM+) imagery. Hot spots were evident in MODIS 3.7-micron imagery while the evolving burnscar was clearly visible in 250-m pixel resolution MODIS imagery.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"152 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133420623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
W. A. White, M. Crawford, S.S. Smith, T. Tremblay, J. A. Raney
{"title":"Preliminary evaluation of NASA EO-1 imagery through an analysis of land cover/land use in Belize, Central America","authors":"W. A. White, M. Crawford, S.S. Smith, T. Tremblay, J. A. Raney","doi":"10.1109/IGARSS.2001.976054","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976054","url":null,"abstract":"This project, funded through NASA's Earth Observing-1 (EO-1) program, is a 2-year investigation to evaluate EO-1 ALI and Hyperion in Belize, Central America. The Bureau of Economic Geology and Center for Space Research are evaluating the newly acquired data in cooperation with the Government of Belize.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133666586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Leuschen, Sivaprasad Gogineni, Stephen M. Clifford, R. K. Raney
{"title":"Simulation and design of ground-penetrating radar for Mars exploration","authors":"C. Leuschen, Sivaprasad Gogineni, Stephen M. Clifford, R. K. Raney","doi":"10.1109/IGARSS.2001.976899","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976899","url":null,"abstract":"Over the past few years, the interest in exploring Mars has grown, with several missions in the planning stages for the next decade. One motivating theme is the potential of discovering substantial subsurface aqueous reservoirs. This paper outlines the simulation and development of a lightweight, low-power, ground-penetrating radar system intended for the subsurface exploration of Mars.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133121634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Registration and BRDF extraction of airborne multi-angular images in different resolutions","authors":"Q. Liu, Q.H. Liu, Q. Xiao, G. Tian, X.W. Li","doi":"10.1109/IGARSS.2001.976167","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976167","url":null,"abstract":"An auto-registration algorithm is designed for multi-angular remote sensing, which refines the image warping function in a step-by-step way. It first uses a wavelet transform to degrade the original images to a series of low resolution ones, then constructs warping function with B-splines, and refines the B-splines according to control points found by a correlation based method. The algorithm is tested with images acquired in North-China by an airborne multi-angular TIR/VNIR imaging system. Results show the advantage of B-splines in comparison with polynomial or thin-plate splines. After registration is done, we give an example for BRDF extraction.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115208654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Vepsalainen, S. Metsamaki, J. Koskinen, M. Huttunen, J. Pulliainen
{"title":"Estimation of snow covered area by applying apparent regional transmissivity","authors":"J. Vepsalainen, S. Metsamaki, J. Koskinen, M. Huttunen, J. Pulliainen","doi":"10.1109/IGARSS.2001.978314","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978314","url":null,"abstract":"The detection of snow from optical instruments is often hampered by forest canopy. In this paper, an empirical reflectance model for estimating regional values for snow covered area (SCA) from optical data is presented. In the model, SCA is expressed as a function of apparent vegetation transmissivity. The estimation of SCA has been tested for NOAA/AVHRR data with drainage basins as calculation units. The same areas are used in an operative hydrological model. Comparison of estimated SCA with reference data indicates good correlation.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115344357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Time course of dual angle temperatures: implication for hydraulic properties evaluation","authors":"G. Boulet, G. Chehbouni, M. Magnac, Y. Kerr","doi":"10.1109/IGARSS.2001.978090","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978090","url":null,"abstract":"Evaporation rate after rainfall depends on both available energy and soil moisture. During the drying of the land surface, one can define three stages: 1) when the available energy is a limiting factor for both soil evaporation and transpiration, the land surface evaporates at a daily constant potential rate (\"energy limited\" or \"atmosphere controlled\"); 2) when surface soil moisture, which drains towards the deepest layers and is removed by soil evaporation, drops below a critical level depending on both surface soil moisture and the hydraulic parameters, soil evaporation begins to decrease and is only related to the soil conditions (\"soil controlled\"); during that stage the root zone soil moisture continues to sustain a potential transpiration; 3) during the last stage, the root zone soil moisture decreases and the vegetation is stressed: both soil and vegetation evaporate at a soil controlled rate, which decreases to reach an equilibrium if no rainfall occurs beforehand. It has been shown in numerous studies that the time of switching from stage 1 to 2 (which depends on potential evaporation rate and soil hydraulic conditions) corresponds to a sharp difference in surface conditions and is therefore observable from space. Some authors have used temporal series of nadir surface temperature or albedo to evaluate this time, and, through it, the hydraulic parameters. Here we use dual angles temperatures to assess this critical time with a better accuracy than the surface temperature alone, and give analytical expressions to relate it to the soil hydraulic conditions.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115488596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improvement of IKONOS images with estimation of spatial information by neural networks","authors":"H. Ishida, M. Inamura","doi":"10.1109/IGARSS.2001.977987","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977987","url":null,"abstract":"Simple enlargement of high resolution images induces conspicuous ringing. This paper deals with the new improvement technique using neural networks (NN). This method uses a fractal feature of images, and its fractal dimension characterizes the limits of its abilities.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115572743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Koblinsky, M. Rienecker, D. Adamec, W. Abdalati, E. Lindstrom
{"title":"Ocean, ice, and climate: the slow dance of a complex system","authors":"C. Koblinsky, M. Rienecker, D. Adamec, W. Abdalati, E. Lindstrom","doi":"10.1109/IGARSS.2001.978186","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978186","url":null,"abstract":"The time horizon of global change is on scales of years, decades, centuries, and beyond, and this variability can have a tremendous regional impact. The importance of the oceans and cryosphere in climate change increases with time scale because of their large thermal inertia. NASA's Earth Science Enterprise has developed a research strategy to address climate relevant questions about the ocean and cryosphere, such as: how is the global ocean circulation varying on interannual, decadal, and longer time scales?; and what changes are occurring in the mass of the Earth's ice cover? This strategy starts with basic exploration utilizing satellite measurements, leads to improved understanding by incorporating data and models, and ends with improved prediction and benefit for the future. In this paper we consider the science and technology challenges for the ocean and cryosphere strategy over the next twenty-five years.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115629112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}