نتایج جستجو برای: sentinel 2
تعداد نتایج: 2536283 فیلتر نتایج به سال:
The rapid change and expansion of human settlements raise the need for precise remote-sensing monitoring tools. While some Land Cover (LC) maps are publicly available, knowledge up-to-date urban extent a specific instance in time is often missing. lack relevant mask, especially developing countries, increases burden on Earth Observation (EO) data users or requires them to rely time-consuming ma...
Sentinel-2 is planned for launch in 2013 and it is equipped with the Multi Spectral Instrument (MSI), which will provide images with high spatial, spectral and temporal resolution. It incorporates two new spectral bands in the red-edge region, which can be used to derive red-edge type of vegetation indices. These are particularly suitable for deriving estimates of canopy chlorophyll and nitroge...
introduction: lymphoscintigraphy is imaging of the lymphatic system and has been integrated into the sentinel node mapping procedures. lymphoscintigraphy usually encompasses early or delayed static images. however, immediate dynamic imaging of the lymphatic basins and tumors has also been used as an adjunct lymphoscintigraphy imaging. the aim of this study was to assess the role of early dynami...
What to expect, when planning to use Sentinel-2 datasets in unsupervised classification? This is a very actual question, since Copernicus Sentinel-2 data has been available since November 2015, but due to the winter period conditions, wide use has been obstacled, user experiences are missing. In a European Space Agency (ESA) financed feasibility study we needed to simulate 2015 Sentinel-2 data ...
Surface soil moisture is an important variable that plays a crucial role in the management of water and soil resources. Estimating this parameter is one of the important applications of remote sensing. One of the remote sensing techniques for precise estimation of this parameter is data-driven models. In this study, volumetric soil moisture content was estimated using data-driven models, suppor...
HYPOTHESIS Patients with melanoma and histologically negative sentinel lymph nodes identified by lymphatic mapping have a very good prognosis. DESIGN Cohort study with follow-up information obtained from medical records and telephone interviews. SETTING AND PATIENTS Of all patients with cutaneous melanoma who underwent intraoperative sentinel lymph node mapping between November 15, 1993, an...
West Nile virus (WNV) is an arthropod-borne Flavivirus usually transmitted to wild birds by Culex mosquitoes. Humans and horses are susceptible to WNV but are dead-end hosts. WNV is endemic in Senegal, particularly in the Senegal River Delta. To assess transmission patterns and potential vectors, entomological and sentinel serological was done in Ross Bethio along the River Senegal. Three senti...
Identification and monitoring of surface water using remote sensing have become very important in recent decades due to its importance in human needs and political decisions. Therefore, surface water has been studied using remote sensing systems and Sentinel-1 and Sentinel-2 sensors in this study. In this paper, two data fusion approaches and decision fusion improve the accuracy of surface wate...
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