IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium最新文献_第9页

On the accurate calibration of the SeaWinds radar antenna: a cylindrical near-field measurement approach 海风雷达天线的精确定标:圆柱近场测量方法

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516390

Z. Hussein, Y. Rahmat-Samii

引用次数: 3

Atmospheric effects on the wind retrieval performance of satellite radiometers 大气对卫星辐射计风反演性能的影响

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516782

R. West, S. Yueh

引用次数: 4

Semiempirical modelling of bidirectional reflectance utilizing the MODIS BRDF/Albedo algorithm models 利用MODIS BRDF/Albedo算法模型进行双向反射率半经验模拟

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516681

H. White, J. Miller, R. Soffer, W. Wanner

引用次数: 3

Consistent 2-D phase unwrapping guided by a quality map 由质量图引导的一致的二维阶段展开

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516887

Thomas Flynn

{"title":"Consistent 2-D phase unwrapping guided by a quality map","authors":"Thomas Flynn","doi":"10.1109/IGARSS.1996.516887","DOIUrl":"https://doi.org/10.1109/IGARSS.1996.516887","url":null,"abstract":"The problem of 2D phase unwrapping arises when a spatially varying quantity is measured module some period. One needs to reconstruct a smooth unwrapped phase, consistent with the original data, by adding a multiple of the period to each sample. Smoothness typically cannot be enforced over all of the scene, due to noise and localized jumps. An unwrapping algorithm may form a mask within which phase discontinuities are allowed. In interferometry a quality map is available, indicating the reliability of the measurements. In this case, the mask should be contained as much as possible in areas of low quality. This paper presents an algorithm for phase unwrapping in which the mask design is guided by the quality map. The mask is grown from the residues (as defined by Goldstein et al.) into areas where the quality is below a threshold. A connected component of the mask stops growing when its residue charge becomes balanced. The threshold is raised as necessary to allow growth. This stage terminates when all components are balanced. The mask is then thinned by removing points that are not needed to cover the residues correctly. The unwrapped phase is found by simple 1D unwrapping along paths that avoid the mask. The authors present an example solution found by the algorithm and discuss possible modifications.","PeriodicalId":190696,"journal":{"name":"IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127821490","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: 115

Accuracy of soil moisture determination by means of passive microwave remote sensing method. Modeling and experiments 被动微波遥感法测定土壤水分的精度。建模与实验

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516649

B. Liberman, A. Milshin

引用次数: 0

Remote sensing: economic viability of environmental monitoring 遥感:环境监测的经济可行性

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516942

M. Macauley, T. J. Brennan

引用次数: 0

Application of neural nets to rain rate retrieval from simulated multichannel passive microwave imagery 神经网络在模拟多通道无源微波图像雨率检索中的应用

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516771

A. Gasiewski, G. Showman, G. Skofronick

引用次数: 2

Modelling of microwave backscatter using a tree-growth model for boreal forests within the NOPEX Test Site 利用NOPEX试验场北方森林的树木生长模型对微波后向散射进行建模

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516310

I. Woodhouse, D. Hoekman

引用次数: 3

Investigation of the accuracy of soil moisture inversion using microwave data and its impact on watershed hydrological modeling 微波反演土壤水分的精度及其对流域水文模拟的影响

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516566

P. O’neill, A. Hsu, T. Jackson, E. Wood, M. Zion

{"title":"Investigation of the accuracy of soil moisture inversion using microwave data and its impact on watershed hydrological modeling","authors":"P. O’neill, A. Hsu, T. Jackson, E. Wood, M. Zion","doi":"10.1109/IGARSS.1996.516566","DOIUrl":"https://doi.org/10.1109/IGARSS.1996.516566","url":null,"abstract":"During 1992 and 1994 NASA/GSFC, USDA, and Princeton University conducted hydrology field experiments in the Little Washita River watershed near Chickasha, Oklahoma, with a goal of characterizing the spatial and temporal variability of soil moisture using microwave sensors from ground, aircraft, and space platforms. A major objective of these activities included the subsequent incorporation of the microwave-derived soil moisture patterns in models of larger scale water balance and partial area hydrology. While work is continuing to improve the accuracy of microwave soil moisture inversion algorithms for both bare and vegetated soils, the impact of errors in estimated soil moisture on hydrological modeling of the watershed has yet to be addressed. In this study a coupled water and energy balance model operating within a topographic framework was used to predict surface soil moisture fields for the Little Washita watershed for an eight-day period in June, 1992 which covered a wide range of soil moisture conditions. The model was first driven by meteorological forcing data, and the model-generated soil moisture fields are compared in space and time to those produced for the watershed by the airborne passive microwave ESTAR sensor for the same time period. In a second analysis, the model was initialized by the remote sensing data, and subsequent model predictions of soil moisture are compared to measured values.","PeriodicalId":190696,"journal":{"name":"IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115043457","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: 3

Broadband phenomena in oceanic passive wind direction signatures: The sensitivity to wave asymmetry, foam, and atmospheric profile 海洋被动风向信号中的宽带现象:对波浪不对称、泡沫和大气剖面的敏感性

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Pub Date : 1996-05-27 DOI: 10.1109/IGARSS.1996.516590

D. Kunkee, A. Gasiewski

引用次数: 1