Investigating Drought and Flood Evolution Based on Remote Sensing Data Products over the Punjab Region in Pakistan

Remote Sensing, Journal Year: 2023, Volume and Issue: 15(6), P. 1680 - 1680

Published: March 20, 2023

Over the last five decades, Pakistan experienced its worst drought from 1998 to 2002 and flood in 2010. This study determined record-breaking impacts of droughts (1998–2002) (2010) analyzed given 12-year period, especially follow-on period when winter wheat crop was grown. We identified drought, flood, warm cold edges over plain Punjab based on a time series (2003–2014), using vegetation temperature condition index (VTCI) approach Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data products. During year 2010, Global Flood Monitoring System (GFMS) model applied real-time Tropical Rainfall Measuring Mission (TRMM) rainfall incorporated products into TRMM Multi-Satellite Precipitation Analysis (TMPA) for detection/intensity, stream flow, daily accumulative precipitation, presented provisions wetlands. exhibits severity, edges, levels VTCI drought-monitoring approach, which utilizes combination normalized difference (NDVI) with land surface (LST) It found that during years 2003–2014, had positive correlation coefficient (r) cumulative precipitation (r = 0.60) day (D-073) winter. In at D-201, there no proportionality (nonlinear), D-217, negative established. revealed time, duration, intensity D-201 described heavy rainfall, events. At D-233 D-281 significant noticed normal conditions 0.95 r 0.97 fall 2010), showed events normality. Notably, our results suggest can be used wet both rain-fed irrigated regions. The are consistent anomalies GFMS spatial temporal observations MODIS, TRMM, TMPA satellites, describe dry conditions, as well runoff flow region should noted affected area, production has consistently declined 19.041 17.7389 million tons.

Language: Английский

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Future changes of summer monsoon rainfall and temperature over Bangladesh using 27 CMIP6 models

Geocarto International, Journal Year: 2023, Volume and Issue: 38(1)

Published: Nov. 17, 2023

This research aims to investigate the future changes in summer monsoon rainfall and temperature Bangladesh. The study revealed that INM-CM5-0 is best model for projecting temperature, while BCC-CSM2-MR over Using data from a large ensemble of 27 models CMIP6, examined change projections Bangladesh during 21st century relative reference period (1981–2014) under SSP2–4.5 SSP5–8.5. Under SSP2-4.5 SSP5-8.5, multi-model mean will fluctuate between 40 260 mm 100 900 mm, respectively. In most parts country's north, northeastern, western regions, projected spatial patterns indicate an increase rainfall. indicated Bangladesh's northwest west-central areas could face significant rise temperatures, surpassing 3.8 °C SSP5-8.5.

Language: Английский

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Large-scale climatic drivers for warm-season compound drought and heatwave frequency over North China

Atmospheric Research, Journal Year: 2023, Volume and Issue: 288, P. 106727 - 106727

Published: March 23, 2023

Language: Английский

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Characterization and outlook of climatic hazards in an agricultural area of Pakistan

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: June 20, 2023

Many dimensions of human life and the environment are vulnerable to anthropogenic climate change hazards associated with it. There several indices metrics quantify that can inform preparedness planning at different levels e.g., global, regional, national, local. This study uses biased corrected projections temperature precipitation compute characteristics potential pronounced in Gomal Zam Dam Command Area (GZDCA)- an irrigated agricultural area Khyber Pakhtunkhwa province Pakistan. The results answer question what future holds GZDCA regarding heatwaves, heavy precipitation, drought. heatwaves drought present alarming call for immediate actions adaptation. magnitude is correlated crop yield response based on AquaCrop model simulations observed data being used as input. correlation provides insight into suitability various characterization. elaborate how wheat grown a typical setting common South Asian region respond indices. findings this process changing expected GZDCA. Analyzing local level (administrative districts or contiguous areas) might be more efficient approach resilience due its specificity enhanced focus context.

Language: Английский

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Lapse rate-adjusted bias correction for CMIP6 GCM precipitation data: An application to the Monsoon Asia Region

Environmental Monitoring and Assessment, Journal Year: 2023, Volume and Issue: 196(1)

Published: Dec. 18, 2023

Language: Английский

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