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":"Planning for Global Precipitation Measurement","authors":"G.M. Flaming, W. J. Adams, S. Neeck, E. Smith","doi":"10.1109/IGARSS.2001.976601","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976601","url":null,"abstract":"The Tropical Rainfall Measuring Mission (TRMM) has demonstrated the importance of rain measurements for both the science and the meteorological communities. The National Aeronautics and Space Administration (NASA) has established a Pre-Formulation Office to initiate the planning for Global Precipitation Measurement (GPM), a follow-on to TRMM. GPM is envisioned as a multi-satellite constellation using passive and active microwave sensors to take rainfall measurements every few hours on a global basis. This paper discusses the programmatic status of GPM, and opportunities for international partnership arrangements. In addition, the top-level science requirements as currently identified, and concepts under consideration for obtaining the desired measurements, are briefly discussed. Finally, ground data processing and distribution, and an overview of instrument concepts is addressed.","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":"16 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":"128608965","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":"Radar image study of ocean breaking waves","authors":"Hyunjun Kim, J.T. Johnson","doi":"10.1109/IGARSS.2001.976224","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976224","url":null,"abstract":"In this paper a radar image study of electromagnetic scattering from one dimensional ocean breaking waves is described. Backscatter results are considered for 1-D surfaces which satisfy an impedance boundary condition (IBC). Radar images of single ocean breaking wave profiles are formed through back-projection tomography. Detailed investigations of the images are also provided to clarify major and secondary scattering events as well as the polarization dependence. A ray tracing analysis is performed to predict possible multiple scattering images.","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":"29 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":"129164670","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":"The depolarization of radar backscatter from rough surfaces due to surface roughness and slopes","authors":"D. Kasilingam, D. Schuler, Jong-Sen Lee","doi":"10.1109/IGARSS.2001.976682","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976682","url":null,"abstract":"In this study, the depolarization of radar backscatter from rough surfaces is investigated. Short scale surface roughness and long scale surface slopes are shown to contribute towards the depolarization of the co-polarized and cross-polarized components. The study investigates the effects of both these surface parameters on the correlation between the different polarizations. The calculations show that the copolarized coherence, /spl rho//sub hhvv/, is most sensitive to changes in roughness and the circularly polarized coherence, /spl rho//sub rrll/, is sensitive to long scale surface slopes. Results appear to be consistent with measurements from controlled laboratory measurements of backscatter from rough surfaces.","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":"77 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":"129329671","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":"Accuracy of rain rate retrieval from dual-frequency precipitation radar data","authors":"T. Iguchi, H. Hanado, T. Kozu","doi":"10.1109/IGARSS.2001.976143","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976143","url":null,"abstract":"This paper outlines the principles and issues of dual-frequency algorithms to estimate the raindrop size distribution parameters from a space-borne radar system that is planned to be flown on the Global Precipitation Mission's \"core\" spacecraft.","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":"45 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":"129367577","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":"On the fractal behavior of SAR images of ocean sea surface","authors":"F. Berizzi, F. Dell’acqua, P. Gamba, A. Garzelli, M. Martorella","doi":"10.1109/IGARSS.2001.977052","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977052","url":null,"abstract":"The fractal properties of SAR images of the sea surface are currently studied by many researchers, but definite results have not been derived. We investigate the fractal behavior of SAR images of the sea surface by analyzing both real ERS-1 images and synthesized sea-surface images. These sea surfaces are obtained from a 2D fractal model using model parameters derived from real data measurements from buoys, acquired at the same locations and at the same dates of the ERS-1 passes. The analysis of fractal images is performed by two different fractal approaches and by an algorithm of multifractal analysis. Experimental results and comparisons are presented in terms of fractal dimension estimated both from sea spectra computed from 'in situ' measurements, and from the corresponding true ERS-1 SAR images.","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":"85 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":"124683547","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":"Estimation of path-average rain drop size distribution using the NASA/TRMM microwave link","authors":"R. Rincon, R. Lang, R. Meneghini, S. Bidwell, A. Tokay","doi":"10.1109/IGARSS.2001.976739","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976739","url":null,"abstract":"Microwave attenuation measurements at 25 GHz, and 38 GHz on the NASA/TRMM 2.3-km microwave link permit the application of a dual-wavelength inversion technique to estimate parameters of a path-average gamma drop size distribution (DSD). Three Joss-Waldvogel disdrometers provide DSD measurements under the link path permitting direct comparison with the estimated DSD. Additionally, the estimated and measured DSDs are used to compute path-average rain rates and rainfall accumulation. These results are compared to path-average measurements from the network of optical and tipping bucket rain gauges.","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":"10 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":"129466137","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":"Determining a better water management using a geographical technique-a case study in Egypt","authors":"W. Khairy, M. Abdel-Dayem, T. Coleman","doi":"10.1109/IGARSS.2001.976187","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976187","url":null,"abstract":"Living in an age of water scarcity makes all countries worry about something as simple as having enough water to grow sufficient food and fiber for their people. Efficient water use is the most economically and environmentally preferable solution, especially when there are signs for expected water drought and increasing competition over limited water supplies. Increased water requirements provide evidence that Egypt is approaching a period of water scarcity. That condition could be projected to have severe constraints on food production and economic development. In this study geographical information system technology is utilized in association with the Simulation of Water Management in the Arab Republic of Egypt (SIWARE) model for simulating a Nile water supply reduction of 25% for one year. The Middle Nile Delta region (about 3,000 km/sup 2/) was discritized into 116 calculation units of average area of 25 km/sup 2/, then simulated using the SIWARE. The irrigation and drainage system networks were segmented into reaches. All the hydrologic, hydraulic, soil, and crop data were given to the SIWARE. Four water management scenarios (describing methods of irrigation and water distribution being used by the Egyptian Ministry of Water Resources and Irrigation and three other alternatives) were simulated using the SIWARE model. The Geographical Interactive Comparative Display Systems (GICDS) of the SIWARE model provided means for distinguishing between the different scenarios geographically. The spatial variability of the four scenarios' results was compared and subtracted graphically using the GICDS. Each water management scenario was evaluated and given an overall score in order to predict the best scenario with the least long-term impacts under such drought conditions. The effectiveness and functionality of the GICDS was presented. The GICDS proved that, under severe drought conditions (25% reduction in the Nile water supply), the actual water management under practice now by the Egyptian Ministry of Water Resources and Irrigation (irrigation water distribution and allocation were based on the average crop water requirements) was the best scenario with the least long-term adverse effects.","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":"36 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":"129487588","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":"Temporal analysis of synthetic aperture radar signatures in a back bay-barrier island system","authors":"T. Donato, C. Bachmann, R. Fusina, G. Oertel, C. Carlson","doi":"10.1109/IGARSS.2001.977938","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977938","url":null,"abstract":"We examine a 3-year sequence of SAR Imagery consisting of 30 RADARSAT frames and find a relationship between radar cross section and tide stage and bathymetry. Most notably, we observe that SAR signal intensity switches between banks within tidal channels on tide reversal.","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":"11 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":"129735494","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":"Noise radar for range/Doppler processing and digital beamforming using binary ADC","authors":"S. Axelsson","doi":"10.1109/IGARSS.2001.977884","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977884","url":null,"abstract":"Presently, there is an increasing interest in noise modulated radar. Wide-band signal processing with high range resolution, reduced ambiguities and high ECCM performance can be achieved. The processing involved correlates the received signal and the delayed reference. Range/Doppler processing and digital beamforming can be performed with surprisingly good results even for binary or a few bits ADC, if a second noise signal is added before.","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":"175 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":"129931350","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":"Automatic satellite image registration based on intensity matching","authors":"Y. Jianchao, Chia Tien Chern, Y. C. Hwang, Y. Adrian","doi":"10.1109/IGARSS.2001.978334","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978334","url":null,"abstract":"In this paper, a new algorithm for satellite image registration was developed. The main characteristic of the algorithm is to align two images automatically, without requiring either control points or sensor parameters. Thanks to incorporation of a robust estimation mechanism and statistical optimisation technique into a multi-model and multi-resolution framework for intensity matching, the algorithm is able to work with images with large variation in orientation, scaling, illumination and translation. The effectiveness of the algorithm has been verified by an intensive experiment on a great number of real images.","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":"15 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":"126796636","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}