Results 211 to 220 of about 81,623,271 (323)

Spatiotemporal mapping of agricultural drought using geospatial approach in the East Bale Zone, Ethiopia

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Agricultural drought significantly threatens food security, livelihoods, and ecosystem stability, especially in regions prone to drought, such as the East Bale zone. This study investigates the spatial and temporal patterns of agricultural drought over 30 years (1993–2024) by combining meteorological station data with satellite‐derived ...
Murad Hedo Haji   +1 more
wiley   +1 more source

The Impact of Land Use and Land Cover Changes on Runoff Volume for Hydropower

open access: yesApplied Research, Volume 5, Issue 6, December 2026.
This study investigates the relationship between land use and land cover (LULC) changes, runoff, and hydropower generation. Remote sensing and Geographic Information System (GIS) techniques were used to analyse LULC changes over a 21‐year period. The SCS‐CN hydrological model was applied to estimate runoff, while Flow Duration Curves (FDCs) were ...
Siti Khadijah Taherah Binti Khairul Idzham   +2 more
wiley   +1 more source

‘Location Matters’: Incorporating Spatial Autocorrelation Into Modelling the Drivers of Cyanobacterial Biomass in Reservoirs of Northeastern Brazil

open access: yesEcohydrology, Volume 19, Issue 7, November/December 2026.
ABSTRACT Spatial autocorrelation (SAC) is a critical yet often overlooked component of ecological analyses, which can significantly influence the accuracy and interpretation of statistical models. Therefore, this study aimed to evaluate the spatial distribution of cyanobacteria biomass among tropical reservoirs at the watershed scale and to identify ...
Tatiane Medeiros Queiroz   +5 more
wiley   +1 more source

Estimating Sub‐Pixel Temperatures During Volcanic Eruptions Using Dual‐Band Thermal Imaging Technique: Case Studies From Whakaari/White Island (New Zealand) and Tofua (Tonga)

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
This study presents the first application of a dual‐band satellite thermal monitoring technique in New Zealand and Tonga, using the 2019 eruption of Whakaari/White Island and the persistently active Lofia crater on Tofua volcano as case studies. At Whakaari/White Island, near‐synchronous Landsat‐8 and Sentinel‐2A data (16 min interval) were analysed ...
Salman Ashraf   +3 more
wiley   +1 more source

Fracture and Calving Front Evolution: A Case Study of Fimbul Ice Shelf, Antarctica

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT This study combines historical records, satellite remote sensing data, and inverse modelling to investigate crack formation and calving front evolution of the Fimbul Ice Shelf, Antarctica. Historical maps from the 1950s, together with satellite imagery from 1970s–2026, are used to reconstruct calving‐front positions and track the evolution of ...
Angelika Humbert   +9 more
wiley   +1 more source

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