Characteristics and mechanisms of the severe compound cold-wet event in southern China during February 2022 DOI Creative Commons
Huixin Li, Bo Sun, Huijun Wang

et al.

Environmental Research Letters, Journal Year: 2023, Volume and Issue: 18(11), P. 114021 - 114021

Published: Oct. 9, 2023

Abstract A severe compound cold-wet event occurred in southern China (hereafter referred to as CWESC ) February 2022, leading enormous socioeconomic losses. In this study, we proposed a new index denote the severity of event. Based on multivariate survival method, 2022 is identified severest during past six decades. Our results indicate that jointly regulated by La Niña-like SST condition tropical Pacific and warm anomalies North Atlantic, teleconnection Northern Hemisphere winter TNHW) plays key role. The TNHW pattern originates from Pacific, it splits into two routes over Atlantic. northern branch propagates via Arctic Siberia, causing intensified near-surface northerly wind partially inducing an anomalous anticyclone western (WNP). Mediterranean Asia, deepened India–Burma trough WNP. causes enhanced cold advection China, while WNP cause increased southerly moist air flow towards resulting 2022. Moreover, four groups numerical experiments forced Atlantic are conducted based Community Atmosphere Model version 5. confirm important roles

Language: Английский

Rice and food security: Climate change implications and the future prospects for nutritional security DOI Creative Commons

Hridoy Ul Awall Rezvi,

Md. Tahjib‐Ul‐Arif, Md. Abdul Azim

et al.

Food and Energy Security, Journal Year: 2022, Volume and Issue: 12(1)

Published: Nov. 25, 2022

Abstract Environmental stresses including salinity, drought, cold, warmer temperatures, alterations in precipitation patterns, fluctuations of weather events, and increasing insect disease infestations negatively affect crop production nutritional values. This situation becomes further complicated due to the changing climatic conditions, thus raising concern about food security worldwide. Some worst‐case projections indicated that by 2100, CO 2 concentrations will reach 950 parts per million, temperatures climb 3.5 more than 8°C, sea level rise 2.4 meters, average farmland drought risk index increase from 52.45 129. In addition, 1%–3% some areas atmospheric water vapor 6%–7% for every degree temperature rise. Rice ( Oryza sativa L.) is a staple many world. The main objective this review highlight prospects rice future conditions. present depicts advantages addresses why better option as cereal situations sustainability. impact climate change on can be mitigated developing biotic abiotic stress‐tolerant biofortified varieties. These cultivars withstand negative effects while also meeting needs generations. Furthermore, underlines forthcoming issues measures should addressed assure sustainable supply era global change.

Language: Английский

Citations

106
Observed humidity trends in dry regions contradict climate models DOI Creative Commons
Isla R. Simpson, Karen A. McKinnon, Daniel Kennedy

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 121(1)

Published: Dec. 26, 2023

Arid and semi-arid regions of the world are particularly vulnerable to greenhouse gas–driven hydroclimate change. Climate models our primary tool for projecting future that society in these must adapt to, but here, we present a concerning discrepancy between observed model-based historical trends. Over arid/semi-arid world, predominant signal all model simulations is an increase atmospheric water vapor, on average, over last four decades, association with increased vapor–holding capacity warmer atmosphere. In observations, this vapor has not happened, suggesting availability moisture satisfy demand lower reality than regions. This most clear locations year round, it also apparent more humid during arid months year. It indicates major gap understanding modeling capabilities which could have severe implications projections, including fire hazard, moving forward.

Language: Английский

Citations

55
Hydroclimate volatility on a warming Earth DOI Creative Commons
Daniel L. Swain, Andreas F. Prein, John T. Abatzoglou

et al.

Nature Reviews Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1), P. 35 - 50

Published: Jan. 9, 2025

Language: Английский

Citations

19
Global warming at near-constant tropospheric relative humidity is supported by observations DOI Creative Commons
Hervé Douville, Saïd Qasmi, Aurélien Ribes

et al.

Communications Earth & Environment, Journal Year: 2022, Volume and Issue: 3(1)

Published: Oct. 10, 2022

Abstract Although global warming is expected to occur at approximately constant relative humidity, the latest IPCC report remains elusive about magnitude of observed changes in tropospheric humidity and their attribution. Here we use a quality-controlled dataset situ observations, reanalyses, long record mean surface temperature constrain both recent future total precipitable water. Most state-of-the-art climate models tend exaggerate projected atmospheric moistening, line with overestimation sensitivity anthropogenic greenhouse gases aerosols across 20 th century. A 39% narrowing range projections obtained after applying observational constraints, best-guess estimate + 7% per °C warming. This finding provides further evidence substantial intensification water cycle as continues.

Language: Английский

Citations

45
Observed variability and trends in global precipitation during 1979–2020 DOI
Guojun Gu, Robert F. Adler

Climate Dynamics, Journal Year: 2022, Volume and Issue: 61(1-2), P. 131 - 150

Published: Nov. 10, 2022

Language: Английский

Citations

42
The role of ecosystem transpiration in creating alternate moisture regimes by influencing atmospheric moisture convergence DOI Creative Commons
Anastassia M. Makarieva, A. V. Nefiodov, Antônio Donato Nobre

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(9), P. 2536 - 2556

Published: Feb. 18, 2023

The terrestrial water cycle links the soil and atmosphere moisture reservoirs through four fluxes: precipitation, evaporation, runoff, atmospheric convergence (net import of vapor to balance runoff). Each these processes is essential for sustaining human ecosystem well-being. Predicting how responds changes in vegetation cover remains a challenge. Recently, plant transpiration across Amazon basin were shown be associated disproportionately with rainfall, suggesting that even small declines (e.g., from deforestation) would lead much larger rainfall. Here, constraining findings by law mass conservation, we show sufficiently wet atmosphere, forest can control such increased enhances results yield. Conversely, dry reduces This previously unrecognized dichotomy explain otherwise mixed observations yield re-greening, as illustrate examples China's Loess Plateau. Our analysis indicates any additional precipitation recycling due increases but decreases local steady-state runoff. Therefore, drier regions/periods early stages ecological restoration, role confined recycling, while once wetter stage achieved, Recent analyses indicate latter regime dominates global response re-greening. Evaluating transition between regimes, recognizing potential enhancing convergence, are crucial characterizing consequences deforestation well motivating guiding restoration.

Language: Английский

Citations

28
Increase in Tropospheric Water Vapor Amplifies Global Warming and Climate Change DOI Creative Commons
Vikas Patel, J. Kuttippurath

Ocean-Land-Atmosphere Research, Journal Year: 2023, Volume and Issue: 2

Published: Jan. 1, 2023

Among the greenhouse gases (GHGs), atmospheric water vapor is most abundant, has a large influence on radiation budget of Earth, and plays decisive role in regional weather processes. We investigate long-term (1980–2020) changes global tropospheric using satellite, radiosonde, reanalysis data assess impact climate with respect to its radiative feedback. The annual climatology varies from 5 60 kg/m 2 across different regions. Except tropics, there strong seasonal cycle both southern northern hemispheres, highest values summer (25 65 ) smallest winter (5 20 ). Most regions show positive trends mean vapor, at about 0.025 0.1 /year, for period 1980–2020, notable increase Arctic because high rise temperature there. Throughout troposphere (except 200 hPa), specific humidity shows significant over land oceans, approximately 0.015 g/kg/year 1000 hPa tropics. associated effects shortwaves surface vary −5 −70 W/m , Manaus, Porto, Hanty–Mawsijsk (tropical stations) −10 polar model projections future high-emission scenarios twice current value latitudes by end 21st century. This great concern climate, as would further augment warming phenomena, such amplification. Therefore, this study cautions that altitudes, which could and, thus, accelerate change.

Language: Английский

Citations

28
Some evidence and new insights for feedback loops of human-nature interactions from a holistic Earth perspective DOI
Longjun Dong, Zixin Huang

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 432, P. 139667 - 139667

Published: Nov. 10, 2023

Language: Английский

Citations

28
HiMIC-Monthly: A 1 km high-resolution atmospheric moisture index collection over China, 2003–2020 DOI Creative Commons
Hui Zhang, Ming Luo, Wenfeng Zhan

et al.

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: April 24, 2024

Abstract Near-surface atmospheric moisture is a key environmental and hydro-climatic variable that has significant implications for the natural human systems. However, high-resolution data are severely lacking fine-scale studies. Here, we develop first 1 km high spatial resolution dataset of monthly index collection in China (HiMIC-Monthly) over long period 2003~2020. HiMIC-Monthly generated by light gradient boosting machine algorithm (LightGBM) based on observations at 2,419 weather stations multiple covariates, including land surface temperature, vapor pressure, cover, impervious proportion, population density, topography. This includes six commonly used indices, enabling assessment conditions from different perspectives. Results show good performance, with R 2 values all indices exceeding 0.96 root mean square error absolute within reasonable range. The exhibits consistency situ various temporal regimes, demonstrating broad applicability strong reliability.

Language: Английский

Citations

16
Unravelling the origin of the atmospheric moisture deficit that leads to droughts DOI Creative Commons
Luis Gimeno‐Sotelo, Rogert Sorí, Raquel Nieto

et al.

Nature Water, Journal Year: 2024, Volume and Issue: 2(3), P. 242 - 253

Published: Feb. 6, 2024

Abstract Drought is one of the most catastrophic natural hazards, and precipitation plays a major role in development intensification drought events. The amount resulting from humidity transported given moisture source can be key revealing origin atmospheric deficit underlying occurrence. Here this study demonstrates, for first time, predominant transport genesis. In land areas, estimated conditional probability an equivalent received either ocean or continents higher than 10%. This over 15% regions where main mechanisms are active 20% some hotspot regions, such as central-east North America, south-east South America east Europe, lower incoming almost synonymous with Our results indicated that contribution dominant to region could improve predictability droughts, enormous hydrological, socioeconomic environmental implications.

Language: Английский

Citations

12