Comment on essd-2024-41 DOI Creative Commons
Aloïs Tilloy, Dominik Paprotny, Stefania Grimaldi

et al.

Published: April 29, 2024

Abstract. Since 1950, European rivers have been put under increasing pressure by anthropogenic activities, resulting in changes climate, land cover, soil properties and channel morphologies. These evolving environmental conditions can translate into hydrological conditions. The availability of consistent estimates river flow at global continental level is a necessity to assess attribute the cycle. To overcome limitations posed observations (incomplete records, inhomogeneous spatial coverage), we simulate discharge for Europe period 1950–2020 using state-of-the-art modelling approach. We use new set up LISFLOOD model, running 1 arcminute (≈1.8 km) with six-hourly time steps. model forced climate reanalysis data (ERA5-land) bias-corrected downscaled resolution weather observations. also ingests 72 surface fields maps representing catchment morphology, vegetation, properties, use, water demand, lakes reservoirs. Inputs related human activities are through emulate society. Hydrological ReAnalysis (HERA), provides 282 521 pixels upstream area > 100 km2. its skill 2901 gauging stations distributed across Europe. Overall, HERA delivers satisfying results, general weak underestimation observed mean variability. find that performance increases between 1950 2020. fine temporal result an enhanced compared other small-to-medium-scale catchments (100–10 000 km2), degraded remaining small catchments. first long-term, high-resolution Despite limitations, it enables analysis dynamics extremes, influences, change scale while keeping local relevance. It creates opportunity study these ungauged

Language: Английский

Firms’ use of formal and informal finance in coping with droughts and floods: experiences from Kenya DOI
Adan Guyo Shibia

Climate and Development, Journal Year: 2023, Volume and Issue: 16(1), P. 9 - 24

Published: Feb. 19, 2023

ABSTRACTThis study analysed factors influencing firms' use of formal and informal finance in coping with droughts floods. It utilized a cross-sectional survey 802 mostly Micro Small Enterprises (MSEs) 27 counties Kenya that are prone to The covered firms manufacturing, wholesale retail trade, accommodation food services sectors. Bivariate probit regressions reveal choice mechanisms varies by firm-specific characteristics, sector locational features. Sectors predominantly higher usage finance, signalling vulnerabilities. female-owned show dependence on while educational attainment the firm's owner, location within urban clusters larger associated findings adaptations climate change risks require measures facilitate access promoting interventions tailored around variables, characteristics business environment.KEYWORDS: Climate adaptationenterprisescoping strategiesresiliencedeveloping countriesAfrica Disclosure statementNo potential conflict interest was reported author(s).Additional informationNotes contributorsAdan Guyo ShibiaAdan Shibia is senior policy analyst private development department at Institute for Public Policy Research Analysis (KIPPRA), based Nairobi, Kenya. His research interests focus households, firm growth, innovation development.

Language: Английский

Citations

2
Characterization of flood and drought hazards on the Gereb-Geba water supply dam in the semi-arid northern Ethiopian highlands DOI Creative Commons
Henok Shiferaw,

Amanuel Zenebe,

Eyasu Yazew

et al.

Geomatics Natural Hazards and Risk, Journal Year: 2023, Volume and Issue: 15(1)

Published: Dec. 18, 2023

Evaluating the flood and drought hazards provides vital information for sustainable water resources management, particularly in semi-arid, water-deficit environments. Most prior studies were limited exploring hazards, which are important early warning systems preparedness. This study characterized hydrological extreme on Gereb-Geba reservoir, namely Suluh, Genfel, Agula rivers. Flood frequency analysis was performed using fitted distribution MATLAB. The 2D hydrodynamic model HEC-RAS implemented to produce a flood-inundation map. Meteorological, agricultural, droughts analyzed Standardized Precipitation Index (SPI), Vegetation Condition (VCI), Streamflow Drought (SDI), respectively. Using Generalized Extreme Value (GEV), estimated magnitude showed an increasing tendency all rivers across return periods (2-, 5-, 10-, 20-, 50-, 100-years). reservoir inundated area of 12.8 km2 at elevation 1830 m.a.s.l. with depth 80 m outlet. Suluh experienced more severe episodes than Genfel Severe meteorological also observed respective catchments. Moreover, agricultural prevalence detected river comprehensive planning, development.

Language: Английский

Citations

2
The association between haemosporidian infection and non-breeding moult location in great reed warblers revisited by combining feather stable isotope profiles and geolocator data DOI Creative Commons
Petr Procházka, Tamara Emmenegger, Silke Bauer

et al.

Oecologia, Journal Year: 2023, Volume and Issue: 204(1), P. 107 - 118

Published: Dec. 23, 2023

Stable isotope analysis provides valuable insights into the ecology of long-distance migratory birds during periods spent away from a specific study site. In previous study, Swedish great reed warblers (Acrocephalus arundinaceus) infected with haemosporidian parasites differed in feather ratios compared to non-infected birds, suggesting that and non-breeding season different locations or habitats. Here, we use novel dataset comprising geolocator data, isotopes, infection status 92 individuals four Eurasian populations investigate whether parasite transmission varies geography We found probability harbouring Plasmodium Leucocytozoon was higher moulting eastern region grounds. However, no geographic pattern occurred for Haemoproteus infections overall status. contrast did not find any relationship between entire current dataset. Plasmodium-infected had lower δ

Language: Английский

Citations

1
Comment on essd-2024-41 DOI Creative Commons
Aloïs Tilloy, Dominik Paprotny, Stefania Grimaldi

et al.

Published: April 23, 2024

Abstract. Since 1950, European rivers have been put under increasing pressure by anthropogenic activities, resulting in changes climate, land cover, soil properties and channel morphologies. These evolving environmental conditions can translate into hydrological conditions. The availability of consistent estimates river flow at global continental level is a necessity to assess attribute the cycle. To overcome limitations posed observations (incomplete records, inhomogeneous spatial coverage), we simulate discharge for Europe period 1950–2020 using state-of-the-art modelling approach. We use new set up LISFLOOD model, running 1 arcminute (≈1.8 km) with six-hourly time steps. model forced climate reanalysis data (ERA5-land) bias-corrected downscaled resolution weather observations. also ingests 72 surface fields maps representing catchment morphology, vegetation, properties, use, water demand, lakes reservoirs. Inputs related human activities are through emulate society. Hydrological ReAnalysis (HERA), provides 282 521 pixels upstream area > 100 km2. its skill 2901 gauging stations distributed across Europe. Overall, HERA delivers satisfying results, general weak underestimation observed mean variability. find that performance increases between 1950 2020. fine temporal result an enhanced compared other small-to-medium-scale catchments (100–10 000 km2), degraded remaining small catchments. first long-term, high-resolution Despite limitations, it enables analysis dynamics extremes, influences, change scale while keeping local relevance. It creates opportunity study these ungauged

Language: Английский

Citations

0
Comment on essd-2024-41 DOI Creative Commons
Aloïs Tilloy, Dominik Paprotny, Stefania Grimaldi

et al.

Published: April 29, 2024

Abstract. Since 1950, European rivers have been put under increasing pressure by anthropogenic activities, resulting in changes climate, land cover, soil properties and channel morphologies. These evolving environmental conditions can translate into hydrological conditions. The availability of consistent estimates river flow at global continental level is a necessity to assess attribute the cycle. To overcome limitations posed observations (incomplete records, inhomogeneous spatial coverage), we simulate discharge for Europe period 1950–2020 using state-of-the-art modelling approach. We use new set up LISFLOOD model, running 1 arcminute (≈1.8 km) with six-hourly time steps. model forced climate reanalysis data (ERA5-land) bias-corrected downscaled resolution weather observations. also ingests 72 surface fields maps representing catchment morphology, vegetation, properties, use, water demand, lakes reservoirs. Inputs related human activities are through emulate society. Hydrological ReAnalysis (HERA), provides 282 521 pixels upstream area > 100 km2. its skill 2901 gauging stations distributed across Europe. Overall, HERA delivers satisfying results, general weak underestimation observed mean variability. find that performance increases between 1950 2020. fine temporal result an enhanced compared other small-to-medium-scale catchments (100–10 000 km2), degraded remaining small catchments. first long-term, high-resolution Despite limitations, it enables analysis dynamics extremes, influences, change scale while keeping local relevance. It creates opportunity study these ungauged

Language: Английский

Citations

0