IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)最新文献_第2页

The Mueller and coherency matrices solution for polarimetric scattering simulation of tree canopy in SAR imagery at C band C波段SAR影像中树冠偏振散射模拟的Mueller和相干矩阵解

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.773544

Yaqiu Jin, Nan-Xiong Zhang, Mei Chang

引用次数: 0

The radar SAIL and other short vertical antenna space SAR concepts 雷达SAIL和其他短垂直天线空间SAR概念

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.773388

J.P. Aguttes

引用次数: 1

Remote sensing of soil moisture in the Southern Great Plains Hydrology Experiment 南方大平原水文试验土壤水分遥感研究

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.774564

T. Jackson

引用次数: 5

Seasonal, interannual, and long-term elevation change of the East Antarctic ice sheet from satellite radar altimetry 卫星雷达测高的南极东部冰盖的季节、年际和长期海拔变化

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.773409

C. H. Davis, G. Feng

{"title":"Seasonal, interannual, and long-term elevation change of the East Antarctic ice sheet from satellite radar altimetry","authors":"C. H. Davis, G. Feng","doi":"10.1109/IGARSS.1999.773409","DOIUrl":"https://doi.org/10.1109/IGARSS.1999.773409","url":null,"abstract":"Surface elevation measurements from the Seasat (1978) and Geosat (1985-88) satellite altimeters are analyzed for the East Antarctic Ice Sheet (EAIS) from 66-72/spl deg/S and 30-150/spl deg/E. The authors examined seasonal and interannual variations in surface elevation using the first two years of the Geosat-ERM dataset (Nov. 1986 to Nov. 1988). In general, the amplitude of the seasonal signal is /spl plusmn/5 cm. In addition, there is no clear periodicity in the seasonal signal as has been observed in Greenland altimeter data. Interannual variations were determined by dividing each year of the Geosat-ERM data into four 3-month seasons. The results show year-to-year variations of about /spl plusmn/3 cm. Long-term elevation change estimates from 1978-88 were measured by comparing surface elevations from the Seasat and Geosat datasets. The results show that the rate of elevation change, in general, varies spatially from -10 to +10 cm/yr. A spatial average of more than 250,000 elevation-change measurements over an area of 1.8 million km/sup 2/ yields a -3.1/spl plusmn/0.95 cm/yr rate of elevation change.","PeriodicalId":169541,"journal":{"name":"IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124881221","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}

引用次数: 1

Comparison of calculation methods for drop size distribution with a ground based dual-wavelength, dual-polarization radar 地基双波长双偏振雷达水滴尺寸分布计算方法的比较

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.773613

N. Takahashi, R. Meneghini

{"title":"Comparison of calculation methods for drop size distribution with a ground based dual-wavelength, dual-polarization radar","authors":"N. Takahashi, R. Meneghini","doi":"10.1109/IGARSS.1999.773613","DOIUrl":"https://doi.org/10.1109/IGARSS.1999.773613","url":null,"abstract":"To know the drop size distribution (DSD) of rainfall is important for understanding rainfall mechanisms and estimation of rainfall amount. Also it is desired to use remote sensing instruments in order to survey large area (volume) in a short time. Radar is the best method if it has the ability to observe several parameters such as dual-wavelength and/or dual-polarization capability. The DSD estimation method with dual-wavelength (X-band and Ka-band) radar (dual-wavelength method) using airborne radar data has been previously shown. ZDR value of polarimetric radar is also utilized for estimation of DSD (ZDR method), under an assumption of an exponential type DSD. The authors first explain these calculation methods for the ground based system and also a method to estimate DSD by using four-parameter radar (dual-wavelength and dual polarization). Radar data used in this study is dual-wavelength; dual-polarization radar owned by Communications Research Laboratory (CRL), Japan, which is located at NASA/GSFC. Frequencies of this radar are 10 GHz and 34.5 GHz. This radar uses a lens horn antenna with the beam width of 5 degrees. The data sampling rate is 0.2 /spl mu/sec (range resolution is 30m).","PeriodicalId":169541,"journal":{"name":"IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124917860","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}

引用次数: 0

Preliminary results of single pass polarimetric SAR interferometry 单次极化SAR干涉测量的初步结果

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.775081

Yunjin Kim, J. V. Van Zyl, A. Chu

引用次数: 6

Consideration of the stratigraphy of snow cover in modeling its emissivity in the microwave 积雪地层学在微波辐射率模拟中的考虑

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.774532

D. Boyarskii, V. Tikhonov

{"title":"Consideration of the stratigraphy of snow cover in modeling its emissivity in the microwave","authors":"D. Boyarskii, V. Tikhonov","doi":"10.1109/IGARSS.1999.774532","DOIUrl":"https://doi.org/10.1109/IGARSS.1999.774532","url":null,"abstract":"Measurements of snow cover emissivity parameters conducted nowadays, show that microwave brightness temperature strongly depends on physical parameters of the snow. The character of such dependence is determined by the stratigraphy of snow cover. Quantitative retrieval of snow cover physical parameters from remotely sensed data calls for an electrodynamic model of snow cover involving stratigraphy in the description of its emissivity. One of the reasons of the disagreement of experimental and theoretical data is the practised averaging of natural stratigraphy of snow cover. The use of snow characteristics averaged over the whole thickness can lead to wrong interpretation of data of remote sensing. In this sense, electrodynamic models of dry snow cover suggested by D. Boyarskii et al. (1993), and considering its structural and stratigraphic properties are more accurate. The main purpose of the present work is to develop a structure dependent model of emissivity of the snow cover. Snow cover is considered a medium consisting of ice and air, in the case of dry snow, and of ice, air and water, in the case of wet snow. Ice and water inclusions are assumed spherical with lognormal size distribution.","PeriodicalId":169541,"journal":{"name":"IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125847514","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}

引用次数: 0

Calculation of scattered power from a layer with randomly distributed particles for the application to the detection of water contents in soil 随机分布颗粒层散射功率的计算及其在土壤含水量检测中的应用

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.775071

T. Matsuoka, M. Tateiba

{"title":"Calculation of scattered power from a layer with randomly distributed particles for the application to the detection of water contents in soil","authors":"T. Matsuoka, M. Tateiba","doi":"10.1109/IGARSS.1999.775071","DOIUrl":"https://doi.org/10.1109/IGARSS.1999.775071","url":null,"abstract":"Moist soil is regarded as the mixture of air, soil, bound water and free water; then it may be assumed a dense random medium. A radiative transfer equation in a dense random medium has been derived from a wave equation with quasi-crystalline approximation with coherent potential (QCA-CP) and ladder approximation, L. Tsang et al. (1987). Under these approximations, a random medium is considered as a homogeneous medium with the effective permittivity, and the scattering and extinction coefficients are evaluated by QCA-CP in Rayleigh scattering region. The radiative transfer equation includes more scattering effects than the conventional one (CRTE), but does not include the effect of backscattering enhancement. This paper considers a three layered model, composed of air, moist soil layer and perfect conductor for developing a method for detecting water contents in soil by active remote sensing. The moist soil layer may be regarded as a homogeneous soil layer with densely distributed water particles. For this model, they used a dense medium radiative transfer equation (DMRTE) with the parameters evaluated by their method to calculate the bistatic scattering coefficients of the soil layer and the degree of polarization of scattered waves by changing the polarization of incident plane waves and the fractional volume of particles.","PeriodicalId":169541,"journal":{"name":"IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125970922","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}

引用次数: 1

HF radar observations of wind-current relationships at the air-sea boundary 海气边界风流关系的高频雷达观测

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.773590

J. Vesecky, L. Meadows, Y. Fernandez, C. Teague, J. Daida, J. Paduan, R. R. Delgado, P. Hansen

引用次数: 2

Korean peninsula recent movements: remote sensing control 朝鲜半岛近期动向:遥感控制

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293) Pub Date : 1999-06-28 DOI: 10.1109/IGARSS.1999.774472

V. Yutsis, J.S. Lee, V.N. Vadkovsky

{"title":"Korean peninsula recent movements: remote sensing control","authors":"V. Yutsis, J.S. Lee, V.N. Vadkovsky","doi":"10.1109/IGARSS.1999.774472","DOIUrl":"https://doi.org/10.1109/IGARSS.1999.774472","url":null,"abstract":"The Korean peninsula is situated st the eastern extremity of Asiatic mainland in the convergence area of the Eurasian, Pacific and Philippine lithosphere plates. Although in the geodynamical sense this region is referred to as a continental margin of active type, many scientists suppose that the Korean peninsula has not been exposed to any observable recent crustal movements as distinct from the situated more east Japanese islands. Morphostructural analysis of relief, carried out by authors on the base of remote sensing data interpretation, analysis of tectonic structure and fields of tension, based on material of geological studies coupled with results of satellite and overland geophysical (gravimetrical and seismological) studies, as well as analysis of recurrent triangulation material and determinations with the help of GPS on supporting geodetic and cadastral networks have shown that from Pliocene time Korean peninsula feels sufficiently intensive as vertical, and horizontal motion. Control for the position of network of supporting spots, executed as of satellite geodesies, has allowed the authors to give a quantitative evaluation to this motion on the modern stage.","PeriodicalId":169541,"journal":{"name":"IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126063845","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}

引用次数: 0