AI Article Synopsis
Article Abstract
Knowledge of spatial and temporal hydroclimatic differences is critical in understanding climatic mechanisms. Here we show striking hydroclimatic contrasts between northern and southern parts of the eastern margin of the Tibetan Plateau (ETP), and those between East Asian summer monsoon (EASM) and Indian summer monsoon (ISM) areas during the past ~2,000 years. During the Medieval Period, and the last 100 to 200 years, the southern ETP (S-ETP) area was generally dry (on average), while the northern ETP (N-ETP) area was wet. During the Little Ice Age (LIA), hydroclimate over S-ETP areas was wet, while that over N-ETP area was dry (on average). Such hydroclimatic contrasts can be broadly extended to ISM and EASM areas. We contend that changes in sea surface temperatures (SSTs) of the tropical Pacific Ocean could have played important roles in producing these hydroclimatic contrasts, by forcing the north-south movement of the Intertropical Convergence Zone (ITCZ) and intensification/slowdown of Walker circulation. The results of sensitivity experiments also support such a proposition.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5016894 | PMC |
| http://dx.doi.org/10.1038/srep33177 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Examining contaminant transport hotspots and their predictability across contrasted watersheds.
Environ Monit Assess
September 2024
Department of Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, QC, H3A 0E8, Canada.
Hydrobiogeochemical processes governing water quantity and quality are highly variable in space and time. Focusing on thirty river locations in Québec, Canada, three water quality hotness indices were used to classify watersheds as contaminant transport hotspots. Concentration and load data for suspended solids (SS), total nitrogen (TN), and total phosphorous (TP) were used to identify transport hotspots, and results were compared across hotness indices with different data requirements.
View Article and Find Full Text PDFThe ant and the grasshopper: Contrasting responses and behaviors to water stress of riparian trees along a hydroclimatic gradient.
Sci Total Environ
November 2024
Université Claude Bernard Lyon 1, LEHNA UMR 5023, CNRS, ENTPE, F-69622, Villeurbanne, France.
Riparian trees are particularly vulnerable to drought because they are highly dependent on water availability for their survival. However, the response of riparian tree species to water stress varies depending on regional hydroclimatic conditions, making them unevenly vulnerable to changing drought patterns. Understanding this spatial variability in stress responses requires a comprehensive assessment of water stress across broader spatial and temporal scales.
View Article and Find Full Text PDFTibetan lake change linked to large-scale atmospheric oscillations via hydroclimatic trajectory.
Sci Total Environ
November 2024
Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
Article Synopsis
- Lakes are indicators of climate change, with varying responses in different environments, particularly noted in the Tibetan Plateau's contrasting climates.
- Research using the Budyko framework analyzed two lake basins—Taro Co Basin (sub-arid) and Ranwu Lake Basin (sub-humid)—from 1980 to 2022, revealing changes in lake area, temperature, and precipitation patterns.
- Findings indicated that while TCB experienced a shift from wetting to drying, RLB shifted from drying to wetting; these trends correlate significantly with El Niño-Southern Oscillation (ENSO) and highlight the need for tailored lake protection strategies.
EStreams: An integrated dataset and catalogue of streamflow, hydro-climatic and landscape variables for Europe.
Sci Data
August 2024
Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
Large-sample hydrology datasets have become increasingly available, contributing to significant scientific advances. However, in Europe, only a few such datasets have been published, capturing only a fraction of the wealth of information from national data providers in terms of available spatial density and temporal extent. We present "EStreams", an extensive dataset of hydro-climatic variables and landscape descriptors and a catalogue of openly available stream records for 17,130 European catchments.
View Article and Find Full Text PDFHigh-intensity rainfall following drought triggers extreme nutrient concentrations in a small agricultural catchment.
Water Res
October 2024
Institut Agro, UMR1069 SAS, INRAE, 65 rue de Saint-Brieuc, Rennes, CEDEX 35000, France.
The profound influence of climate change on the hydrological cycle raises concerns about its potential impacts on water quality, particularly in agricultural catchments. Here, we analysed 200 storm events monitored for nitrate and total phosphorus (TP) at sub-hourly intervals from 2016 to 2023 in the Kervidy-Naizin catchment (north-western France). Using Extreme Value theory, we identified storm events with extreme concentrations and compared their hydroclimatic characteristics to those of non-extreme events.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!