Results 41 to 50 of about 279,437 (285)

Preliminary Evaluation of Sentinel-1A Wind Speed Retrievals

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
The accuracy of wind speed retrievals from synthetic aperture radars (SARs) is strongly dependent upon the accuracy of the normalized radar cross section measurement. Here, we make a preliminary assessment of wind speed retrievals from Sentinel-1A. In particular, we use Sentinel-1A SAR imagery to compute wind speed at 500-m resolution.
Frank M. Monaldo, Christopher R. Jackson, Xiaofeng Li 0001, William G. Pichel   +3 more
openaire   +2 more sources

Assessment of Ocean Swell Height Observations from Sentinel-1A/B Wave Mode against Buoy In Situ and Modeling Hindcasts

Remote Sensing, 2022
Synthetic Aperture Radar (SAR) in wave mode is a powerful tool for monitoring sea states in terms of long-period ocean swells of a specific wave directional partition. Since 2016, SARs aboard Sentinel-1A/B operating in wave mode have provided ocean swell
He Wang, Alexis Mouche, Romain Husson, Antoine Grouazel, Bertrand Chapron, Jingsong Yang   +5 more
doaj   +1 more source

First Assessment of Sentinel-1A Data for Surface Soil Moisture Estimations Using a Coupled Water Cloud Model and Advanced Integral Equation Model over the Tibetan Plateau

Remote Sensing, 2017
The spatiotemporal distribution of soil moisture over the Tibetan Plateau is important for understanding the regional water cycle and climate change.
Xiaojing Bai, Binbin He, Xing Li, Jiangyuan Zeng, Xin Wang, Zuoliang Wang, Yijian Zeng, Zhongbo Su   +7 more
doaj   +1 more source

Radiometric accuracy and stability of sentinel-1A determined using point targets [PDF]

International Journal of Microwave and Wireless Technologies, 2018
ABSTRACTSentinel-1A is a space-borne synthetic aperture radar (SAR) system developed in the frame of the Copernicus Program. The German Aerospace Center supported the radiometric and polarimetric calibration of Sentinel-1A by the analysis of point target responses of several acquisitions considering different modes, beams, and polarization channels. An
Schmidt, Kersten, Tous Ramon, Núria, Schwerdt, Marco   +2 more
openaire   +2 more sources

Lake Ice Classification from Sentinel-1A 2015 - 2018

, 2018
In the ESA DUE GlobPermafrost project lake ice classifications were produced to distinguish grounded ice and floating ice in lakes in Barrow (Arctic Alaska, US), Teshekpuk (Arctic Alaska, US), Mackenzie Delta (Beaufort Sea Region, CA), Kytalyk (Central ...
Claude R Duguay (6967259), Duguay, Claude R, Wang, Junqian, Junqian Wang (6968900)   +3 more
core   +1 more source

Monitoring Deformasi Gunung Merapi Menggunakan Citra Sentinel-1A Dengan Menggunakan Metode DInSAR (Studi Kasus: Gunung Merapi, Jawa Tengah)

Rekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2020
ABSTRAK Indonesia mempunyai 127 gunung api aktif yang tersebar dari Sabang sampai Merauke. Oleh karena itu, perlu adanya pemantauan aktivitas gunung api yang dapat digunakan untuk acuan mitigasi bencana.
Rian Nurtyawan, Lady Suci Utami
doaj   +1 more source

Development of Web-Based Sentinel-1A Image Download Automation Module Using Prototyping Method [PDF]

, 2022
Sentinel-1A imagery can be used for various purposes, such as surveys and agricultural land use mapping. For example, Sentinel-1A image can be used to carry out land processing and validate crop yields from horticultural crops such as garlic.
Imas Sukaesih Sitanggang, Taufik Hidayat, Agmalaro, Muhammad Asyhar   +2 more
core   +1 more source

Verifying the Geometric Accuracy of Sentinel-1A and Sentinel-1B using L0Products [PDF]

12th European Conference on Antennas and Propagation (EuCAP 2018), 2018
The geometric accuracy of Sentinel-1 is usally derived from level-1 products in Stripmap mode using accurate surveyed corner reflector positions. While the range offset is found to be low (~30 cm) an azimuth offset of about 2 m remains. The study investigates the reason for the geometric offsets by deriving the geometric parameters from L0-data ...
Schmidt, Kersten, Tous Ramon, Núria, Reimann, Jens, Schwerdt, Marco   +3 more
openaire   +2 more sources

In Vivo Monitoring of Thrombo‐Inflammatory Biomarkers via Molecularly Imprinted Polymer‐Integrated Hydrogel Microneedles

Advanced Materials, EarlyView.
A wearable electrochemical microneedle patch integrates Prussian Blue redox transduction with molecularly imprinted polymer recognition for reagent‐free sampling and detection of thrombo‐inflammatory biomarkers in dermal interstitial fluid. The platform tracks thrombin and inflammatory cytokines with sensitive in vitro, ex vivo, and in vivo performance,
Mahmoud Ayman Saleh, Peyman GhavamiNejad, Arash Khorrami Jahromi, Sanjana Srikant, Sripadh Guptha Yedire, Fatemeh Keyvani, Roozbeh Siavash Moakhar, Sajad Shiekh, Mackenzie Graham, Joe Quadrilatero, Mahla Poudineh, Sara Mahshid   +11 more
wiley   +1 more source

The use of lymphoscintigraphy to localise the sentinel lymph node [PDF]

, 2005
Includes bibliographical references (leaves 72-90).Sentinel lymph node (SLN) biopsy is being used increasingly for staging early breast carcinoma in place of complete axillary lymph node dissection. The optimal method to identify the SLN and has not been
Korowlay, Nisaar Ahmed
core   +1 more source