Comparison of three reanalysis‐driven regional climate models over New Zealand: Climatology and extreme events

International Journal of Climatology, Journal Year: 2024, Volume and Issue: 44(12), P. 4219 - 4244

Published: July 23, 2024

Abstract Three ~12‐km reanalysis‐driven regional climate models (RCMs) are evaluated in terms of capturing climatologies and extremes precipitation, temperature surface wind over Aotearoa/New Zealand (NZ). NZ provides an excellent case study for evaluating high‐resolution RCMs due to its coastal complex terrain isolated geographical position the midlatitudes, exposed both tropical polar influences. Overall, we find that faithfully reproduce observed climate, with precipitation particularly well‐captured. However, display significant differences from observations climatology, highlighting a remaining key challenge. The excess “drizzle problem” is apparent varying degrees, leading weaker representation length meteorological drought some regions. also diverge reproducing diurnal range which appears partly related cloud cover. Finally, discuss important role observational uncertainty context model evaluation.

Language: Английский

---

Precipitation phase shift variations under a warming climate over the Qilian Mountain, China in the 21st century

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 57, P. 102151 - 102151

Published: Jan. 5, 2025

Language: Английский

---

Air Quality Assessment During the Initial Implementation Phase of a Traffic-Restricted Zone in an Urban Area: A Case Study Based on NO2 Levels in Seville, Spain

Processes, Journal Year: 2025, Volume and Issue: 13(3), P. 645 - 645

Published: Feb. 25, 2025

Traffic-related air pollution significantly affects quality. Many cities have introduced low emission zones (LEZs) to restrict urban transport. Nitrogen dioxide (NO2) is a dangerous pollutant associated with adverse health effects, such as respiratory diseases, cancer, and death. This research aimed evaluate the impact of implementing an LEZ during informative period in which no fines were imposed on vehicles. The methodology consisted several phases. Firstly, legal levels guarantee compliance quality standards Directive 2008/50/EC studied. Secondly, this study analyzed temperature wind speed patterns city under investigation. Finally, in-depth statistical evaluated at each monitoring station throughout municipality. case focused Seville, Spain, using data from 2022, 2023, first quarter 2024, latter corresponding reporting without fines. results reveal wide dispersion periodicity NO2 concentrations stations. Seville complied regulations before implementation LEZ, similar seasonal observed. A overall was observed three months after implementation. can be used universally.

Language: Английский

---

Investigation on the Linkage Between Precipitation Trends and Atmospheric Circulation Factors in the Tianshan Mountains

Water, Journal Year: 2025, Volume and Issue: 17(5), P. 726 - 726

Published: March 1, 2025

The Tianshan Mountains are located in the hinterland of Eurasian continent, spanning east to west across China, Kazakhstan, Kyrgyzstan, and Uzbekistan. As primary water source for Central Asia’s arid regions, mountain system is pivotal regional security highly sensitive nuances climate change. Utilizing ERA5 precipitation datasets alongside 24 atmospheric circulation indices, this study delves into variances Tianshan’s patterns their correlation with large-scale within timeframe 1981 2020. We observe a seasonally driven dichotomy, mountains exhibiting increasing moisture during spring, summer, autumn months, contrasted by drier conditions winter. There pronounced spatial variability; western northern reaches exhibit more increases compared eastern southern counterparts. Influences on multifaceted, significant factors including North Pacific Pattern (NP), Trans-Niño Index (TNI), Tropical Northern Atlantic (TNA*), Extreme Eastern SST (Niño 1+2*), (NTA), 4*), Tripole Interdecadal Oscillation [TPI(IPO)], Western Hemisphere Warm Pool (WHWP*). Notably, NP TNI emerge as predominant driving upsurge precipitation. further reveals lagged response circulatory patterns, underpinning complex correlations resonance cycles varying magnitudes. Our findings offer valuable insights forecasting trends mountainous terrains amidst ongoing shifts global conditions.

Language: Английский

---

Enhancing Precipitation Intensity Estimation Using ERA5-Land Reanalysis with Statistical and Machine Learning Approaches

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104928 - 104928

Published: April 1, 2025

Language: Английский

---

Monitoring Daily All‐Sky Evapotranspiration Over the East Asian Continent Using Multi‐Channel Passive Microwave Measurements From Fengyun‐3B Satellite of China

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(10)

Published: May 13, 2025

Abstract Terrestrial evapotranspiration (ET) modulates energy and water cycles of land‐atmosphere continuum. Satellite daily ET estimation under all sky (both clear cloudy sky) remains challenging due to the difficulty in detecting vegetation dynamics cloud cover. In this study, we utilized microwave land surface Emissivity Difference Vegetation Index (EDVI) at X‐ K‐bands, which was retrieved from Chinese Fengyun‐3B satellite Microwave Radiation Imager (MWRI) measurements conditions, derive (ET FYEDVI ) over East Asia (80–145°E, 10–55°N) 2016 2018, combination with multi‐source all‐sky radiation ERA5 climatic data. The EDVI used represent key characteristic for allocating total available constraining canopy conductance. validated multiple spatiotemporal scales, against situ eight flux sites annual balance method nine river basins. Site‐scale validations showed that generated overall good accuracy ( R 2 = 0.78, bias −0.1 mm day −1 across forest, grass, crop, desert sites. Basin‐scale evaluations further demonstrated stable small 0.96, −22.2 year southern humid arid inland This comparable or better than those four global products. More importantly, produced low accumulative increasing characterized variability continental even heavy cover (>90%) conditions. study marks first attempt use Fengyun‐3 passive produce continental‐scale ET, showing great potential mapping spatiotemporally continuous ET.

Language: Английский

---

Quantifying glacier surging and associated lake dynamics in Amu Darya river basin using UAV and remote sensing data

Journal of Mountain Science, Journal Year: 2024, Volume and Issue: 21(9), P. 2967 - 2985

Published: Sept. 1, 2024

Language: Английский

---

Performance of the Copernicus European Regional Reanalysis (CERRA) dataset as proxy of ground-based agrometeorological data

Agricultural Water Management, Journal Year: 2023, Volume and Issue: 289, P. 108556 - 108556

Published: Oct. 23, 2023

The continuous advances in numerical modeling of the atmosphere, computing power and data assimilation techniques entail frequent updates weather prediction (NWP) models that show improved forecast skill. This circumstance leads to recurrent delivery revised reanalysis databases provide estimates for several decades back time by combining latest NWP with observations. Since climate studies agriculture water management applications require availability accurate reliable data, assessing performance products contributes informed choices potential proxy ground-based agrometeorological data. CERRA (Copernicus European Regional ReAnalysis) dataset is regional product released Centre Medium-Range Weather Forecasts (ECMWF), August 2022. forced global ERA5 reanalysis, it provides resolution 5.5 km pan-European territory from 1984. For first literature, this study explores at 38 stations located Sicily, an Italian region Mediterranean climate, during irrigation seasons 2003–2022. objective lies evaluating respect air temperature, actual vapor pressure, wind speed solar radiation are input variables reference evapotranspiration, ETO, which a key variable quantifying volumes needed resources studies. accuracy ETO depends on those through equation provided Food Agriculture Organization United Nations (FAO), i.e., FAO Penman-Monteith equation. Here, also evaluated using inputs results performances excellent, especially determines present high reliability mean PBIAS NRMSE equal 5.6% 13%, respectively, over region. Those outcomes lead conclusion represents valid alternative measurements their spatial interpolation resource

Language: Английский

---

Onset of flash drought based on the WRF in the Poyang Lake Basin of China

Atmospheric Research, Journal Year: 2024, Volume and Issue: 309, P. 107547 - 107547

Published: June 28, 2024

Language: Английский

---

Prediction of long-term photovoltaic power generation in the context of climate change

Renewable Energy, Journal Year: 2024, Volume and Issue: 235, P. 121263 - 121263

Published: Aug. 30, 2024

Language: Английский

---