Results 61 to 70 of about 29,501 (231)
The first global multi-timescale daily SPEI dataset from 1982 to 2021
Global warming accelerates water cycle, causing more droughts globally that challenge monitoring and forecasting. The Standardized Precipitation Evapotranspiration Index (SPEI) is used to assess drought characteristics and response time of natural and ...
Xuebang Liu +4 more
doaj +1 more source
Spatiotemporal evaluation of drought trend during 1979–2019 in seven climatic zones of Bangladesh
Evaluation of drought is essential and useful to eradicate climate change impact. Therefore, this study aims to explore the spatiotemporal drought intensity trend in seven climatic zones of Bangladesh during 1979–2019.
Md. Naimur Rahman +2 more
doaj +1 more source
ABSTRACT Microtubules are noncovalent polymers assembled from α/β tubulin dimers. Their structure, dynamics and interaction with effectors are regulated through the expression of diverse tubulin isotypes and chemically diverse posttranslational modifications, also known as the “tubulin code.” Understanding the biophysical correlates between tubulin ...
Jiayi Chen +2 more
wiley +1 more source
We downscale CanESM2 with the Regional Climate Model version 4 (20 km) and evaluate against 15 stations to derive monthly PET (Hargreaves–Samani) and SPEI for northeastern Iran (1990–2009, 2040–2059, 2080–2099). Results show robust PET increases and a shift toward more negative monthly SPEI—especially April–September—indicating earlier onset and longer
Nasrin Salehnia +6 more
wiley +1 more source
Due to climate change, the timing of budbreak is occurring earlier in temperate and boreal tree species. Since the warmer conditions also cause snow to melt earlier in the spring, the hypothesis that bud reactivation of tree species of the mixedwood ...
Benjamin Marquis
doaj +1 more source
Assessment and Monitoring of Drought Using Satellite and Meteorological Time Series Data (Case Study: Zanjan Province) [PDF]
Objective: This study aims to conduct a comparative analysis of drought indices by integrating meteorological and satellite-based indices to enhance the spatial and temporal monitoring of drought in Zanjan Province.Method: Two meteorological drought ...
Hossein Shojaee Shiri +4 more
doaj +1 more source
Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI), traditionally derived at a monthly scale, are widely used drought indices.
Rongrong Zhang +8 more
doaj +1 more source
Climatic Drivers of the Area Burned by Winter Wildfires in Northern Italy
This study investigates winter wildfires occurring between November and April in northern Italy over the period 2008–2022. By integrating high‐resolution burned‐area data with gridded climatic indices derived from 150 weather stations, it identifies spatial and temporal wildfire patterns, highlights the most fire‐prone mountain areas through pixel ...
Alice Baronetti +2 more
wiley +1 more source
Multi‐Timescale Drought Evolution in Greece (1960–2022) From Station‐Based SPI and SPEI
Using homogenized data from 67 HNMS stations in Greece (1960–2022), we calculated SPI and SPEI at 1–12‐month scales to characterize meteorological to hydrological drought. We quantified the network‐based spatial extent of drought, compared SPI and SPEI drought signals, and tested changes with autocorrelation‐robust Mann–Kendall trends and Pettitt ...
Michael Samouris +3 more
wiley +1 more source

