Results 11 to 20 of about 279,437 (285)

Sentinel-1A/B Combined Product Geolocation Accuracy [PDF]

Remote Sensing, 2017
Sentinel-1A and -1B are twin spaceborne synthetic aperture radar (SAR) sensors developed and operated by the European Space Agency under the auspices of the Copernicus Earth observation programme.
Adrian Schubert, Nuno Miranda, Dirk Geudtner, David Small   +3 more
doaj   +5 more sources

Sentinel-1A/B SAR calibration and performance status

, 2021
Sentinel-1 (S-1) is the European flagship SAR mission initiated by European Space Agency and the European Commission. It is a constellation of two C-band twins satellite providing backscatter globally. The calibration and overall SAR performance of the mission is continuously assessed by the S-1 Mission Performance Center being a joint venture of ...
Miranda, Nuno, Meadows, Peter, Piantanida, Riccardo, Recchia, Andrea, Franceschi, Niccolò, Hajduch, Guillaume, Husson, R, Vincent, Pauline, Small, David, Schubert, Adrian, Mouche, Alexis   +10 more
core   +7 more sources

Independent Verification of the Sentinel-1A System Calibration

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014
In the frame of the GMES program, the main objective of the Sentinel-1 mission is to ensure the continuity of SAR data acquisitions in C-band for global earth monitoring. Sentinel-1A is the first of two C-band satellites launched in April 2014. In addition to the commissioning of Sentienl-1A executed by ESA, an independent verification of the system ...
Marco Schwerdt, Kersten Schmidt, Nuria Tous-Ramon, Gabriel Castellanos Alfonzo, Björn J. Döring, Manfred Zink, Pau Prats-Iraola   +6 more
openaire   +5 more sources

Soil Moisture Mapping Using Sentinel-1A Synthetic Aperture Radar Data

International Journal of Environment and Geoinformatics, 2018
The aim of this study is to estimate and map soil moisture distribution using C-band Synthetic Aperture Radar (SAR) data. Sentinel-1A is a new generation C-band SAR satellite, and in this study Sentinel-1A data acquired on 24 April 2016 were used to ...
Aliihsan Şekertekin, Aycan Murat Marangoz, Saygın Abdikan   +2 more
doaj   +2 more sources

DEFORMATION MEASUREMENT USING SENTINEL-1A/B IMAGERY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Land deformation monitoring based on C-band Synthetic Aperture Radar Sentinel-1A/B imagery is the main focus of this paper. This type of data is exploited using a Persistent Scatterer Interferometry technique. The paper describes a deformation monitoring
M. Crosetto, O. Monserrat, N. Devanthéry, M. Cuevas-González, A. Barra, B. Crippa   +5 more
doaj   +3 more sources

Machine Learning Model to Predict Manganese Micronutrient Content in Oil Palm Plantation Soil Using Sentinel 1A and Sentinel 2A Image Integration [PDF]

JOIV: International Journal on Informatics Visualization
This study aims to predict manganese micronutrients in oil palm plantation soil using machine learning. Materials and technological tools use remote sensing with the integration of Sentinel 1A and Sentinel 2A satellites for monitoring micronutrients in ...
- Suhendi, Kudang Boro Seminar, - Sudradjat, - Liyantono, Sirojul Munir, Fatimah Az Zahra   +5 more
doaj   +3 more sources

Sentinel-1A/B SAR and InSAR performance

, 2018
This paper addresses the Copernicus Sentinel-1A/B mission’s SAR and InSAR performance. Sentinel-1 uses preprogrammed SAR mode operations to provide a high revisit frequency and systematic global SAR image coverage. This is mainly based upon the operational use of the novel TOPS (Terrain Observation with Progressive Scans in azimuth) SAR imaging mode ...
Geudtner, Dirk, Miranda, Nuno, Navas-Traver, Ignacio, Vega Ceba, Francisco, Prats, Pau, Yague-Martinez, Nestor, Breit, Helko, de Zan, Francesco, Larsen, Yngvar, Recchia, Andrea, Small, David, Schubert, Adrian, Barat, Itziar   +12 more
core   +3 more sources

Combined Sentinel-1A With Sentinel-2A to Estimate Soil Moisture in Farmland [PDF]

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, seven filter algorithms were compared. The Lee sigma method was more suitable for estimating soil moisture (SM) than the other filtering methods under different land cover types.
Ying Liu, Jiaxin Qian, Hui Yue
doaj   +2 more sources

Sentinel-1A SAR data for global urban mapping: Preliminary results

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
In this paper, Sentinel-1A SAR data were evaluated for urban extent extraction using the KTH-Pavia Urban Extractor. The methodology is based on texture measures and spatial statistics as well as decision level fusion. Sentinel-1A data in Stripmap mode (SM) or Interferometric Wide Swath mode (IW) were acquired in five cities around the world.
Alexander W. Jacob, Yifang Ban
openaire   +3 more sources

Machine Learning-Based Soil Moisture Retrieval from Sentinel-1A Observations over the International Soil Moisture Networks

Remote Sensing
Soil moisture (SM) is a critical variable in land–atmosphere water and energy exchange, and synthetic aperture radar (SAR) observations offer an effective means for large-scale and fine-resolution SM monitoring.
Jingyang Wang, Yuzhu Wang, Xiaojing Bai, Wei Shao   +3 more
doaj   +2 more sources