نتایج جستجو برای: ndwi

تعداد نتایج: 418  

Journal: :Remote Sensing 2023

Soil moisture content (SMC) plays a critical role in soil science via its influences on agriculture, water resources management, and climate conditions. There is broad interest finding relationships between groundwater recharge, characteristics, plant properties for the quantification of SMC. The objective this study was to assess potential optical satellite imagery estimating SMC over cropland...

Journal: :Water 2021

The novel coronavirus disease (COVID-19) halted almost all the industrial scale anthropogenic activities across globe, resulting in improvements water and air quality of megacities. Here, using Sentinel-2A data, we quantified impact COVID-19 lockdown on parameters one largest perennial creeks i.e., Buddha Nala located District Ludhiana India. This creek has long been considered as a dumping gro...

Journal: :Remote Sensing 2022

The aim of this study was to clarify the distribution irrigated drylands in arid and semi-arid areas, where complex terrain, diverse crops staggered cultivated lands exist. This paper studied classification methods based on temperature, precipitation, Normalized Difference Vegetation Index (NDVI) Water (NDWI) from Landsat data one-harvest area northern Loess Plateau China by using Google Earth ...

Road detection and Extraction is one of the most important issues in photogrammetry, remote sensing and machine vision. A great deal of research has been done in this area based on multispectral images, which are mostly relatively good results. In this paper, a novel automated and hierarchical object-based method for detecting and extracting of roads is proposed. This research is based on the M...

Remote sensing data play an important role in environmental planning and monitoring. The current study aimed to investigate the land surface temperature (LST) and the effect of environmental factors on the LST, to identify the temporal-spatial patterns and determine the hot spots in the period of 2013 to 2019, using Landsat 8 images. The effect of spectral indices: Normalized Difference Build-u...

Journal: :Water 2023

Global warming has accelerated climate and weather changes, impacting the regional water cycle. This study assesses temporal trends of seasonal annual runoff in Chitral River Basin (CRB) its responses to climatic factors (i.e., temperature, precipitation, Normalized Difference Vegetation Index (NDVI)) oceanic indices at large scales El Nino Southern Oscillation (ENSO), Indian Ocean Dipole (IOD)...

Journal: :Water 2021

Surface water bodies, such as rivers, lakes, and reservoirs, play an irreplaceable role in global ecosystems climate systems. Sentinel-2 imagery provides new high-resolution satellite remote sensing data. Based on the analysis of spectral characteristics satellite, a novel index called (SWI) that is based vegetation-sensitive red-edge band (Band 5) shortwave infrared 11) bands was developed. Fo...

Journal: :Environmental Earth Sciences 2023

The southwestern part of Bangladesh has a mixed ecosystem, which is directly affected by climate change and undergoing remarkable changes in agricultural activities that are exacerbating the dynamics soil organic carbon (SOC) total nitrogen (STN). To study spatial distribution SOC STN such Dacope Upazila was chosen, different interpolation methods were applied compared to find out best approach...

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2022

Surface water/ice dynamic monitoring is crucial for many purposes, such as water resource management, agriculture, climate change, drought, and flood forecasting. New advances in remote sensing satellite data have made it possible to monitor the surface dynamics both spatially temporally. However, there are challenges when using these data, availability of valid imagery, cloud contamination iss...

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