Power Data Access Viewer-Based Meteorological Drought Analysis and Rainfall Variability in the Nile River Basin

Advances in Meteorology, Journal Year: 2024, Volume and Issue: 2024, P. 1 - 12

Published: March 5, 2024

Meteorological drought poses a frequent challenge in the Nile River basin, yet its comprehensive evaluation across basin has been hindered by insufficient recorded rainfall data. Common indices like standard precipitation index, coefficients of variation, and concentration index serve as pivotal tools gauging severity. This research aimed to assess meteorological status using Power Data Access Viewer product Bias correction procedures were implemented refine monthly data for Bahirdar, Markos, Nekemt, Muger stations, resulting notable improvements coefficient determination ( $R^2$ ) that increased from 0.74 0.93, 0.72 0.89, 0.71 0.96, 0.69 0.84, respectively. The average spatial distribution was classified extremely wet (3.81%), severely (9.01%), moderately (7.36%), near normal (9.97%), (21.20%), (17.11%), (31.54%). Approximately 10.33% situated regions characterized high variability, while around 21.17% located areas with notably irregular index. Overall, this study sheds light on prevailing patterns emphasizing significance understanding managing these phenomena sustainable development region.

Language: Английский

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Modeling climate change impacts on blue and green water of the Kobo-Golina River in data-scarce upper Danakil basin, Ethiopia

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 53, P. 101756 - 101756

Published: March 27, 2024

Kobo-Golina River, Upper Danakil Basin, Ethiopia. It is crucial to understand the spatiotemporal distribution of blue water (BW) and green (GW) for optimal use resources, especially in data-scarce regions. This study aims evaluate extent which future climate changing, its impact on blue-green resources area. Projected changes were predicted based latest Coupled Model Intercomparison Project Phase 6 (CMIP6) Global Climate Models (GCMs) three periods (2015–2044, 2045–2075, 2076–2100) under two shared socio-economic pathways (SSP2–4.5 & SSP5–8.5). Compromise programming technique was employed rank select best performing GCMs. The multi-variable calibrated SWAT+ model forced with projections from top-ranked CMIP6 GCMs ensemble simulate projected Compared baseline period (1984–2014), declined while exhibited an increasing trend all SSPs. also noted that spatial BW GW remains uneven Precipitation significantly impacted than resources. provides valuable insights into utilization recent coupled hydrological models better simulation Blue-Green basins changing climate.

Language: Английский

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Escaping Poverty Traps and Unlocking Prosperity in the Face of Climate Risk

Published: June 20, 2024

This Element outlines the origins and evolution of an international award-winning development intervention, index-based livestock insurance (IBLI), which scaled from a small pilot project in Kenya to design that underpins drought risk management products policies across Africa. General insights are provided on i) economics poverty, management, drylands development; ii) evolving use modern remote sensing data science tools iii) scaling; iv) value challenges integrating research with operational implementation tackle humanitarian some world's poorest regions. title is also available as Open Access Cambridge Core.

Language: Английский

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Adoption of climate resilient agricultural practices among the Giriama community in South East Kenya: implications for conceptual frameworks

Frontiers in Climate, Journal Year: 2023, Volume and Issue: 5

Published: June 15, 2023

While quantitative studies are robust at assessing the extent of climate change adaptation, and statistical relationships among variables involved, qualitative also essential to understand social rationales underlying variables, identify roles that have been overlooked or hard measure. This study investigates factors influence adoption resilient agricultural practices by resource-poor Giriama farmers in southeast Kenya, with a view understanding why some smallholders from this cultural group adopt practices, while others do not. Data was collected through in-depth interviews 30 farmers, 15 whom had adopted farming recommended experts, not any those practices. The adopters were market-oriented, tended individual land tenure, higher levels experience farming, slightly larger farm sizes, middle high school education levels, be younger. They access extension, inputs, their off-farm activities related supply chains. Non-adopters farmed entirely for subsistence, on communal leased land, less formal education, adhered strongly beliefs Their income unrelated agriculture. More males, many non-adopters female. Particular taboos inhibited several such as planting hybrid maize, keeping dairy goats, using improved goats Kenyan Alpine breeding purposes use water conservation structures crop production. Further, information explains how ownership, gender, culture, interrelated, ways necessarily obvious analysis. thus highlights issues need considered conceptual frameworks underpinning both studies, particularly they interact, order provide knowledge policy programs intended enhance smallholder farmers' adaptive capacity.

Language: Английский

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Global Distribution of Culex tritaeniorhynchus and Impact Factors

International Journal of Environmental Research and Public Health, Journal Year: 2023, Volume and Issue: 20(6), P. 4701 - 4701

Published: March 7, 2023

Culex tritaeniorhynchus is the primary vector of Japanese encephalitis (JE) and has a wide global distribution. However, current future geographic distribution maps Cx. in are still incomplete. Our study aims to predict potential conditions provide guideline for formation implementation control strategies all over world. We collected screened information on occurrence by searching literature online databases used ten algorithms investigate its impact factors. had been detected 41 countries from 5 continents. The final ensemble model (TSS = 0.864 AUC 0.982) indicated that human footprint was most important factor tritaeniorhynchus. tropics subtropics, including southeastern Asia, Central Africa, North America eastern South America, showed high habitat suitability predicted have wider continents, especially Western Europe under two extreme emission scenarios (SSP5-8.5 SSP1-2.6). Targeted prevention should be further strengthened.

Language: Английский

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Projection of future drought characteristics in the Great South of Madagascar using CMIP6 and bias-correction spatial disaggregation method

Theoretical and Applied Climatology, Journal Year: 2023, Volume and Issue: 155(3), P. 1871 - 1883

Published: Nov. 13, 2023

Language: Английский

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Projected changes in daily precipitation, temperature and wet‐bulb temperature across Arizona using statistically downscaled CMIP6 climate models

International Journal of Climatology, Journal Year: 2024, Volume and Issue: 44(6), P. 1994 - 2010

Published: March 20, 2024

Abstract To evaluate future changes in the climate system, outputs from coarse‐resolution global models (GCMs) need to be downscaled a finer scale, making them more directly applicable for impact assessment. Here we focus on examining projected of three key variables (precipitation, air temperature, and wet bulb temperature) across Arizona (south‐western United States). We use daily GCMs sixth phase Coupled Model Intercomparison Project (CMIP6) bias correct downscale 4‐km resolution. Through leave‐one‐out cross‐validation, compare various correction methods identify that empirical quantile mapping approach performs best regardless variable. Then, analyse bias‐corrected two periods (Mid‐of‐Century: 2015–2048; End‐of‐Century: 2067–2100) with respect 1981–2014 period, under four shared socioeconomic pathway scenarios (SSP1‐2.6, SSP2‐4.5, SSP3‐7.0 SSP5‐8.5). Our results show Arizona's is become overall warmer wetter, so towards end this century higher emission scenarios. Additionally, our findings project an increase temperature cooling degree days, implying ongoing warming climate's potential impacts public health economy. These provide baseline understanding change state highlight response

Language: Английский

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Hydrological responses projection to the potential impact of climate change under CMIP6 models scenarios in Omo River Basin, Ethiopia

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102708 - 102708

Published: Aug. 9, 2024

Climate change has a negative impact on the basin's hydrological processes and water resources. In this study, projected impacts of climate in Omo River Basin was evaluated under two Shared Socioeconomic Pathways (SSP245 SSP585) scenarios. The latest Coupled Model Inter-comparison Project (CMIP6) model dataset precipitation temperature were used to assess anticipated basin. SWAT simulate effects throughout baseline (1990–2019), near (2031–2060), far future (2071–2100) periods. predicted stream flow will increase annually monthly June, July, August, September (JJAS) both scenarios except decrease months March, April, May (MAM) SSP245 scenario. basin mean annual seasonal (JJAS MAM) surface runoff SSP585 scenarios; however, it decreases groundwater decline MAM Likewise, yield scenario, nevertheless, increases potential evapotranspiration with over all circumstances. There be significant spatial variations balance components future. results study essential for managing resources future, creating plans coping change, reducing risk flooding scarcity.

Language: Английский

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Future Projections of Climate Variables and Meteorological Drought: Insight from CMIP6 Models in Southeast Ethiopia

Dynamics of Atmospheres and Oceans, Journal Year: 2025, Volume and Issue: unknown, P. 101538 - 101538

Published: Feb. 1, 2025

Language: Английский

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Comparative analysis of carbon stock and litter nutrient concentration in tropical forests along the ecological gradient in Kenya

Journal of Forestry Research, Journal Year: 2025, Volume and Issue: 36(1)

Published: Feb. 6, 2025

Language: Английский

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