Results 21 to 30 of about 20,572 (261)

Radiometric Comparison within the Sentinel-1 SAR Constellation over a Wide Backscatter Range

Remote Sensing, 2020
Radiometric calibration adjusts the measured pixel intensity to a physical property, the radar cross section (RCS). After calibration, this relationship is defined over the entire backscatter range: from low image power (near noise) up to high ...
Kersten Schmidt, Marco Schwerdt, Nuno Miranda, Jens Reimann   +3 more
doaj   +1 more source

EFFECT OF DIFFERENT SEGMENTATION METHODS USING OPTICAL SATELLITE IMAGERY TO ESTIMATE FUZZY CLUSTERING PARAMETERS FOR SENTINEL-1A SAR IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Optical and SAR data are efficient data sources for shoreline monitoring. The processing of SAR data such as feature extraction is not an easy task since the images have totally different structure than optical imagery.
B. Bayram, N. Demir, B. Akpinar, S. Oy, F. Erdem, T. Vögtle, D. Z. Seker   +6 more
doaj   +1 more source

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

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

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   +1 more source

Comparison of Sentinel-1A Ascending and Descending Image Processing Results on the Tukul Dam Using SNAP Software

Journal of Applied Geospatial Information
This study analysed and compared the accuracy of the results of Sentinel 1A satellite image processing in the ascending and descending orbit directions with SNAP software.
Faiz Mahbubi, Sukamta, Yudo Prasetyo
doaj   +1 more source

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   +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

Monitoring and Mapping of Rice Cropping Pattern in Flooding Area in the Vietnamese Mekong Delta Using Sentinel-1A Data: A Case of An Giang Province

ISPRS International Journal of Geo-Information, 2019
Cropping intensity is one of the most important decisions made independently by farmers in Vietnam. It is a crucial variable of various economic and process-based models.
Huynh Vuong Thu Minh, Ram Avtar, Geetha Mohan, Prakhar Misra, Masaaki Kurasaki   +4 more
doaj   +1 more source

LINC01116, a hypoxia‐lncRNA marker of pathological lymphangiogenesis and poor prognosis in lung adenocarcinoma

Molecular Oncology, EarlyView.
The LINC01116 long noncoding RNA is induced by hypoxia and associated with poor prognosis and high recurrence rates in two cohorts of lung adenocarcinoma patients. Here, we demonstrate that besides its expression in cancer cells, LINC01116 is markedly expressed in lymphatic endothelial cells of the tumor stroma in which it participates in hypoxia ...
Marine Gautier‐Isola, Rafael Lopes Goncalves, Marin Truchi, Caroline Lacoux, Célia Scribe, Hugo Cadis, Laetitia Guardini, Sophie Bekisz, Marius Ilié, Paul Hofman, Georges Vassaux, Bernard Mari, Roger Rezzonico   +12 more
wiley   +1 more source