Results 41 to 50 of about 4,699 (186)

A model-based approach for mapping rangelands covers using Landsat TM image data

open access: yesCaspian Journal of Environmental Sciences, 2009
Empirical models are important tools for relating field-measured biophysical variables to remotely sensed data. Regression analysis has been a popular empirical method of linking these two types of data to estimate variables such as biomass, percent ...
Ajorlo, M.   +2 more
doaj  

Suitable habitat of Himalayan wolf in Upper Mustang, Annapurna Conservation Area, Nepal

open access: yesWildlife Biology, EarlyView.
Decades ago, the Himalayan wolf Canis lupus chanco, a genetically distinct sub‐species of the gray wolf Canis lupus, faced persecution by local communities in the Nepalese Himalayas. Recently, wolf populations have returned and recolonized, sparking concerns about conflicts over livestock depredation, and emphasizing the urgent need for comprehensive ...
Deu Bahadur Rana   +5 more
wiley   +1 more source

The Effect of Mine‐Related Groundwater Use and Management on Surface Water in the Middle Humboldt River Basin

open access: yesGroundwater, EarlyView.
Abstract The Humboldt River, in Northern Nevada, USA, is a source of water for agricultural, municipal, and industrial uses. Mining has been active in Nevada since the 1800s. The recognition that groundwater withdrawal for many purposes—including mining—has the potential to deplete streamflow has prompted studies of the Humboldt River Basin.
Matthew Tonkin   +2 more
wiley   +1 more source

Water Quality Retrieval from Landsat TM Imagery

open access: yesProcedia Computer Science, 2011
AbstractIn this paper, the utility of Landsat TM imagery for water quality studies in East Texas is investigated. Remote sensing has an important and effective role in water quality management. Remote sensing satellites measure the amount of solar radiation reflected by surface water and the reflectance of water depend upon the concentration and ...
openaire   +1 more source

Desertification monitoring by LANDSAT TM satellite imagery

open access: yesForest Science and Technology, 2011
The desertification tendency of the Qubqi Desert in China for 10 years was investigated using vegetation and soil change indices extracted from seven LANDSAT TM images. To identify the desertification tendency, two methods were applied. In the first, the desertification extent and tendency were determined by classifying the land cover into the ...
Guishan Cui   +5 more
openaire   +1 more source

The Benefits of High Resolution Multispectral TIR Data and Its Impending Loss by NASA After Four Decades

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey   +8 more
wiley   +1 more source

Controlling banana bunchy top disease in Benin: Crop protection strategies with socio‐economic perspectives

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1675-1691, September 2026.
Banana and plantain are vital for food security and income in West Africa, yet banana bunchy top virus (BBTV) threatens production. This study combined remote sensing, field surveys, modelling and socio‐economic analysis to assess BBTV spread and control strategies in Benin.
Renata Retkute   +13 more
wiley   +1 more source

Estimativa da evapotranspiração real diária utilizando-se imagens digitais TM - Landsat 5 Assessment of daily actual evapotranspiration using TM - Landsat 5 digital images

open access: yesRevista Brasileira de Meteorologia, 2008
A quantificação da evapotranspiração é de grande importância na modelagem hidrológica e meteorológica, sendo indispensável no manejo hídrico sustentável de cultivos irrigados.
Bergson G. Bezerra   +2 more
doaj   +1 more source

Predictive Ecosystem Health Assessment Under Land‐Use and Vegetation Dynamics in a Semi‐Arid Rift Valley Basin, Ethiopia

open access: yesLand Degradation &Development, Volume 37, Issue 14, Page 10417-10439, 30 August 2026.
ABSTRACT Land degradation driven by rapid land‐use and climate‐driven vegetation dynamics increasingly threatens ecosystem stability in semi‐arid wetland basins, yet predictive ecosystem health assessments remain limited in Sub‐Saharan Africa. This study evaluates historical dynamics and future trajectories of ecosystem health in the Ziway‐Shalla Sub ...
Brook Legese   +2 more
wiley   +1 more source

Mapping the bathymetry of coral islands with the Landsat series: Quantitative evaluation of the consistency and temporal change detection

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Landsat series data (Landsat-5 Thematic Mapper (TM), Landsat-7 Enhanced Thematic Mapper Plus (ETM+), Landsat-8 Operational Land Imager (OLI), and Landsat-9 OLI2) hold significant potential for detecting temporal changes of underwater terrain in optically
Yongming Liu   +5 more
doaj   +1 more source

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