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浏览/检索结果: 共18条，第1-10条 帮助

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Quantifying the effect of salinity on dielectric-based soil moisture measurements using COSMOS records 期刊论文  OAI收割
JOURNAL OF HYDROLOGY, 2024, 卷号: 643, 页码: 131925
作者:  Wang, Jundong;  Sun, Zhigang;  Yang, Ting;  Wang, Bing;  Dou, Wenjun
  |  收藏  |  浏览/下载：4/0  |  提交时间：2024/10/21
Remote Sensing of Autumn Phenology by Including Surface Soil Temperature: Algorithm Development, Calibration, and Validation 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2022, 卷号: 15, 页码: 6485-6494
作者:  Yuan, Huanhuan;  Wang, Xiaoyue;  Jassal, Rachhpal S.;  Lu, Linlin;  Peng, Jie
  |  收藏  |  浏览/下载：24/0  |  提交时间：2022/09/21
Remote Sensing of Autumn Phenology by Including Surface Soil Temperature: Algorithm Development, Calibration, and Validation 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2022, 卷号: 15, 页码: 6485-6494
作者:  Yuan, Huanhuan;  Wang, Xiaoyue;  Jassal, Rachhpal S.;  Lu, Linlin;  Peng, Jie
  |  收藏  |  浏览/下载：31/0  |  提交时间：2022/09/21
Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文  OAI收割
The Astrophysical Journal, 2020, 卷号: 901, 页码: L7
作者:  HXMT
  |  收藏  |  浏览/下载：23/0  |  提交时间：2022/02/08
Radio transient sources  Magnetars  Soft gamma-ray repeaters  2008  992  1471  Astrophysics - High Energy Astrophysical Phenomena  Astrophysics - Instrumentation and Methods for Astrophysics  Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of AJ = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 1014 Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to RNIR ? 0.025 (fluence index ?0.35).  
Detecting Change in the Indonesian Seas (vol 6, 257, 2019) 期刊论文  OAI收割
FRONTIERS IN MARINE SCIENCE, 2019, 卷号: 6, 页码: 3
作者:  Sprintall, Janet;  Gordon, Arnold L.;  Wijffels, Susan E.;  Feng, Ming;  Hu, Shijian
  |  收藏  |  浏览/下载：77/0  |  提交时间：2020/01/03
Model-based assessment of a Northwestern Tropical Pacific moored array to monitor intraseasonal variability 期刊论文  OAI收割
OCEAN MODELLING, 2018, 卷号: 126, 页码: 1-12
作者:  Liu, DN;  Zhu, J;  Shu, YQ;  Wang, DX;  Wang, WQ
  |  收藏  |  浏览/下载：35/0  |  提交时间：2018/09/03
Developing priority variables ("ecosystem Essential Ocean Variables" - eEOVs) for observing dynamics and change in Southern Ocean ecosystems 期刊论文  OAI收割
JOURNAL OF MARINE SYSTEMS, 2016, 卷号: 161, 页码: 26-41
作者:  Constable, Andrew J.;  Costa, Daniel P.;  Schofield, Oscar;  Newman, Louise;  Urban, Edward R., Jr.
收藏  |  浏览/下载：46/0  |  提交时间：2016/09/19
Soil Moisture Mapping Using Combined Active/Passive Microwave Observations Over the East of the Netherlands 期刊论文  iSwitch采集
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2015, 卷号: 8, 期号: 9, 页码: 4355-4372
作者:  van der Velde, Rogier;  Salama, Mhd. Suhyb;  Eweys, Omar Ali;  Wen, Jun;  Wang, Qiang
收藏  |  浏览/下载：31/0  |  提交时间：2019/10/09
An Investigation Into the Feasibility of Using Passive Microwave Remote Sensing to Monitor Freeze/Thaw Erosion in China 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2015, 卷号: 8, 期号: 9, 页码: 4460-4469
作者:  Chai, Linna;  Zhang, Lixin;  Lv, Xiaoran;  Hao, Zhenguo;  Liu, Shuzhen
收藏  |  浏览/下载：35/0  |  提交时间：2016/02/17
The Development of Microwave Vegetation Indices from WindSat Data 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2015, 卷号: 8, 期号: 9(SI), 页码: 1185-1200
作者:  Li, Yunqing;  Shi, Jiancheng;  Liu, Qiang;  Dou, Youjun;  Zhang, Tao
收藏  |  浏览/下载：22/0  |  提交时间：2016/04/20