Results 111 to 120 of about 59,716 (313)
Determination of Vegetation Changes with Ndvi Method
, 2015 Remote sensing and geographical information system methods are used frequently in field use, planning and determination of land changes. The data types used in this study vary according to the objective of the study. In this study, the Landsat TM satellite patterns of 1987, 2002 and 2012 years were classified according to NDVI and the changes in the ...
Ozyavuz, M., Bilgili, B.C., Salici, A.
openaire +3 more sources
Remote Sensing in Ecology and Conservation, EarlyView.Temperate fens with only incipient, subtle signs of deterioration can be reliably identified using Sentinel‐2 and aerial imagery, which sensitively detect early productivity‐related structural changes. Abstract Small temperate fens rank among the most endangered habitats in temperate Europe.
Lubomír Tichý +9 more
wiley +1 more source
A Model of West African Millet Prices in Rural Markets [PDF]
In this article we specify a model of millet prices in the three West African countries of Burkina Faso, Mali, and Niger. Using data obtained from USAID’s Famine Early Warning Systems Network (FEWS NET) we present a unique regional cereal price ...
Molly E. Brown +2 more
core
Remote Sensing in Ecology and Conservation, EarlyView.Imaging spectroscopy enables large‐scale biodiversity assessment, yet spectral diversity metrics are scale dependent. Across 15 NEON ecosystems, we find that spectral richness increases sub‐linearly from 3600 m2 to 4 km2, whereas spectral divergence shows weak or inconsistent scaling with area, underscoring the importance of scale‐aware interpretation ...
Meghan T. Hayden +8 more
wiley +1 more source
Utilization of NDVI, VTCI and WDI indices in analyzing the effects of drought severity and duration on vegetation density in Siminehrood catchment [PDF]
تحقیقات کاربردی علوم جغرافیایی, 2020 Various satellite remote sensing data, images and products have proven their place in drought, drought and agriculture studies since the production of this type of information resource.
Parviz zeaiean Firoozabadi
doaj
Mapping fire affected areas in northern Western Australia - towards an automatic approach
, 2004 Wildfires across northern Australia are a growing problem with more than 2.5 million hectares being burnt each year. Accordingly, remote sensing has been used as a tool to routinely monitor and map fire histories.
Candy, Katherine
core
NDVI-derived forest area change and its driving factors in China
, 2018 China harbors diversified forest types, from tropical rainforest to boreal coniferous forest, and has implemented large-scale reforestation/afforestation programs over the past several decades. However, little information is available on changes in China’
Feng Chen (25347) +7 more
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin +5 more
wiley +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.High‐resolution visible‐light imagery from low‐altitude unmanned aerial vehicles, combined with superpixel segmentation and a Random Forest classifier, provides an efficient and scalable framework for mapping and monitoring crustose coralline algae and reef habitats.
Po‐Chien Lin +2 more
wiley +1 more source