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2008 Microwave Radiometry and Remote Sensing of the Environment最新文献

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X-band opacity of a tropical tree canopy and its relation to intercepted rain, eddy fluxes and other meteorological variables 热带树冠的x波段不透明度及其与截雨、涡流通量和其他气象变量的关系
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579514
M. Schneebeli, C. Matzler, S. Wolf, W. Eugster
{"title":"X-band opacity of a tropical tree canopy and its relation to intercepted rain, eddy fluxes and other meteorological variables","authors":"M. Schneebeli, C. Matzler, S. Wolf, W. Eugster","doi":"10.1109/MICRAD.2008.4579514","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579514","url":null,"abstract":"During summer and autumn 2007, we deployed a 11 GHz microwave radiometer in an experimental tree plantation in Sardinilla, Panama, in the vicinity of the Panama Canal. With this instrument, we determined the opacity of the tree canopy. A collocated eddy-covariance flux tower measured water vapor and carbon dioxide fluxes as well as other meteorological variables such as photosynthetically active radiation (PAR), vapor pressure deficit (VPD) and rain. We observed a pronounced diurnal cycle of the opacity during dry periods and a close relation of the opacity to canopy intercepted rain during rainy periods. The diurnal opacity cycle shows a strong correlation with PAR, VPD and the water vapor flux.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124347841","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
High-resolution spectral radiometer imaging system 高分辨率光谱辐射计成像系统
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579474
M. Jirousek, M. Peichl, H. Suess
{"title":"High-resolution spectral radiometer imaging system","authors":"M. Jirousek, M. Peichl, H. Suess","doi":"10.1109/MICRAD.2008.4579474","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579474","url":null,"abstract":"A high-resolution spectral radiometer imaging system developed at DLR combines high-resolution aperture synthesis imaging with spectral sensing. The frequency range of 1.4 to 7 GHz allows a high penetration depth in order to extract information about the surface and material of observed objects. The aperture synthesis principal can produce a high resolution snapshot image with a highly thinned array without mechanical movement of a antenna system. Another advantage of that combination, i.e. a higher spatial resolution at higher frequencies and a higher penetration at lower frequencies, can enhance the overall imaging capability using combined processing for the image reconstruction. In this paper the experimental system ANSAS is presented, the setup and receiver assembly is outlined, and some imaging results using the developed electronics on a two-elements interferometer shows the capabilities of the concept.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132510403","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
MIRAS ground characterization MIRAS地面表征
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579468
I. Corbella, F. Torres, N. Duffo, M. Martín-Neira, V. González, Adriano Camps, M. Vall-llossera
{"title":"MIRAS ground characterization","authors":"I. Corbella, F. Torres, N. Duffo, M. Martín-Neira, V. González, Adriano Camps, M. Vall-llossera","doi":"10.1109/MICRAD.2008.4579468","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579468","url":null,"abstract":"On-ground characterization of the complete microwave imaging radiometer with aperture synthesis (MIRAS), successfully manufactured by EADS-CASA Espacio, is briefly described. The characterization includes (a) Basic functionality tests and internal calibration assessment carried out at the manufacturer premises, (b) Operation under extreme thermal conditions at the ESApsilas Large Space Simulator and (c) Image validation tests at the ESApsilas Maxwell anechoic chamber including also response to point sources. Description of the different tests carried out and detailed results of the instrument characterization including graphics of the different parameters retrieved and images of the empty chamber are provided.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132180694","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
Improved modeling and retrieval of convective precipitation from spaceborne passive microwave measurements 基于星载被动微波测量的对流降水改进建模和反演
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579486
R. Vincent Leslie, L. Bickmeier, W. Blackwell, F.W. Chen, L. G. Jairam
{"title":"Improved modeling and retrieval of convective precipitation from spaceborne passive microwave measurements","authors":"R. Vincent Leslie, L. Bickmeier, W. Blackwell, F.W. Chen, L. G. Jairam","doi":"10.1109/MICRAD.2008.4579486","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579486","url":null,"abstract":"This manuscript focuses on recent efforts for the development and validation of passive microwave precipitation retrieval algorithms for the NPOESS (National Polar-Orbiting Operational Environmental Satellite System) satellite program. Emphasis will be placed on the following three critical components: a methodology for simulating passive microwave observations, a technique for validating the methodology with aircraft measurements, and a statistics-based algorithm for estimating precipitation rate.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129070476","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
Multi year sea ice concentration mapping using passive and active microwave satellite data 利用被动和主动微波卫星数据绘制多年海冰浓度图
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579513
E. Shalina, O. Johannessen
{"title":"Multi year sea ice concentration mapping using passive and active microwave satellite data","authors":"E. Shalina, O. Johannessen","doi":"10.1109/MICRAD.2008.4579513","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579513","url":null,"abstract":"Though changes of the full ice cover in the Arctic are well described due to availability for processing SMMR/SSMI passive microwave data, changes of the composition of the Arctic ice cover, in terms of ice types still need to be quantified, at least for winter season. Algorithms for mapping multiyear ice concentrations based on passive microwave data suffer from a number of problems. In this paper, those problems are described and it has been shown that QuikSCAT scatterometer data can add complimentary information to that available from passive microwave, which can assist in fixing the boundary between first-year and multiyear ice and in removing erroneously classified by passive microwave algorithm multiyear ice in the ice edge area.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"2007 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114203207","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: 4
Development of space L-band radiometric system and radiometer-polarimeter for subsatellite measurements 空间l波段辐射测量系统及星下测量用辐射计-偏振计的研制
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579472
N. Armand, S. Marechek, V. Savorski, M. Smirnov, Y. Tishchenko, V. S. Ablyazov, A. Khaldin
{"title":"Development of space L-band radiometric system and radiometer-polarimeter for subsatellite measurements","authors":"N. Armand, S. Marechek, V. Savorski, M. Smirnov, Y. Tishchenko, V. S. Ablyazov, A. Khaldin","doi":"10.1109/MICRAD.2008.4579472","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579472","url":null,"abstract":"The main goal of space L-band radiometric system design is the development of radiophysical methods for Earth remote sensing in a promising L-band range of electromagnetic waves for investigation of events and processes in the atmosphere-Earth surface system. For scientific investigations the Russian small satellite will be used. Launch of the satellite is scheduled for 2008. On the threshold of planned space missions with payloads containing L-band radiometers it is very important to have reliable subsatellite measurements with analogous instruments. In IRE and SDB RAS a microwave L-band radiometer polarimeter is under development. Field measurements with a prototype radiometer were performed during the campaign held in Katsiveli (Crimea), August, 2007.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121593753","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
Air-sea interaction monitoring by remote and contact measurements: The results of the CAPMOS’05 and CAPMOS’07 experiments on an oceanographic platform in the Black Sea 海气相互作用的远程和接触式监测:黑海海洋平台上CAPMOS ' 05和CAPMOS ' 07实验结果
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579508
M. Pospelov, Y. Goryachkin, N. Komarova, A. Kuzmin, A. S. Kuznetsov, P. Pampaloni, I. Repina, M. Smirnov, S. Zecchetto
{"title":"Air-sea interaction monitoring by remote and contact measurements: The results of the CAPMOS’05 and CAPMOS’07 experiments on an oceanographic platform in the Black Sea","authors":"M. Pospelov, Y. Goryachkin, N. Komarova, A. Kuzmin, A. S. Kuznetsov, P. Pampaloni, I. Repina, M. Smirnov, S. Zecchetto","doi":"10.1109/MICRAD.2008.4579508","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579508","url":null,"abstract":"The paper presents the results of the experiments CAPMOSpsila05 and CAPMOSpsila07 performed on an offshore oceanographic platform in the Black Sea. The platform equipped with contact and remote sensors is located approximately 600 m to the south of Crimea coast, Ukraine. The experiments aimed at air-sea interaction monitoring were carried out by an international research team during summer months in 2005 and 2007. Spectral parameters of wind and waves were estimated from direct and remote measurements. A comparison with known spectrum models was performed.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116867298","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
On the reduction of the systematic error in imaging radiometry by aperture synthesis: a new approach for the SMOS space mission 孔径合成减小成像辐射测量系统误差:SMOS航天任务的新方法
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579478
A. Khazâal, H. Carfantan, É. Anterrieu
{"title":"On the reduction of the systematic error in imaging radiometry by aperture synthesis: a new approach for the SMOS space mission","authors":"A. Khazâal, H. Carfantan, É. Anterrieu","doi":"10.1109/MICRAD.2008.4579478","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579478","url":null,"abstract":"The SMOS mission is a European Space Agency project aimed at global monitoring of surface Soil Moisture and Ocean Salinity from radiometric L-band observations. This work is concerned with the reduction of the systematic error (or bias) in the reconstruction of radiometric brightness temperature maps from SMOS interferometric measurements. A recent and efficient method has been proposed for reducing this error. However, a residual bias still persists. A new approach for reducing this bias down to residual values less than 0.1 K is presented here and illustrated with numerical simulations.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128495000","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
Dynamics of short waves spectrum measured by remote and contact sensors from an oceanographic platform 海洋平台上遥测和接触式传感器测量的短波频谱动力学
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579509
M. Pospelov, V. Antonov, A. Kuzmin, I. Sadovsky
{"title":"Dynamics of short waves spectrum measured by remote and contact sensors from an oceanographic platform","authors":"M. Pospelov, V. Antonov, A. Kuzmin, I. Sadovsky","doi":"10.1109/MICRAD.2008.4579509","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579509","url":null,"abstract":"The paper presents the results of the experiment CAPMOSpsila05 performed on an offshore oceanographic platform in the Black Sea. Microwave radiometer measurements were applied for gravity-capillary wave spectrum retrieval using the original techniques. The spectrum components evolution under unstable wind conditions was investigated. It was demonstrated that the spectral components in the vicinity of the curvature maximum are the most sensitive to the wind velocity variations.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127528999","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
Temperature and humidity profiling in the Arctic using millimeter-wave radiometry 利用毫米波辐射测量法研究北极的温度和湿度剖面
2008 Microwave Radiometry and Remote Sensing of the Environment Pub Date : 2008-03-11 DOI: 10.1109/MICRAD.2008.4579484
D. Cimini, E. Westwater, A. Gasiewski, M. Klein, V. Leuski
{"title":"Temperature and humidity profiling in the Arctic using millimeter-wave radiometry","authors":"D. Cimini, E. Westwater, A. Gasiewski, M. Klein, V. Leuski","doi":"10.1109/MICRAD.2008.4579484","DOIUrl":"https://doi.org/10.1109/MICRAD.2008.4579484","url":null,"abstract":"A One Dimentional Variational (1DVAR) retrieval technique has been developed for obtaining temperature and humidity profiles from observations of the Ground-based Scanning Radiometer (GSR) operating at millimeter and submillimeter waves. The GSR participated in two Arctic experiments held at the Atmospheric Radiation Measurement (ARM) Program in Barrow, Alaska: the Water Vapor Intensive Operational Period (WVIOP, March-April 2004) and the Radiative Heating in Underexplored Bands Campaign (RHUBC, February-March 2007); data from both experiments are used in this paper. Temperature and humidity profiles retrieved with the 1DVAR technique are compared with simultaneous radiosonde observations. Examples and statistical results are presented and discussed to demonstrate the achieved retrieval accuracy and vertical resolution.","PeriodicalId":193521,"journal":{"name":"2008 Microwave Radiometry and Remote Sensing of the Environment","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131077744","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: 10
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