Articles tagged with Droughts
The analysis of three Himalayan ice cores reveals a highly detailed record of the last 1,000 years of earth's climate in the high Tibetan Plateau. The data shows that both the last decade and the last 50 years were the warmest in 1,000 years, with at least eight major droughts caused by a failure of the South Asian Monsoon.
Researchers analyzed ancient sediments to shed light on ancient drought cycles and their potential link to future aridity. The study found well-defined 80- to 100-year cycles of alternately arid and humid conditions in the region.
Researchers used a computer climate model to find that vegetation interactions significantly drive the Sahel region's drought. The study suggests that natural vegetation causes enhanced drying, leading to cooler climates and reduced rainfall.
Scientists create a new 'drought map' using National Oceanic and Atmospheric Administration (NOAA) satellite data to identify areas hardest hit by the drought. The map compares current surface temperature measurements to average temperatures over the last 10 years, showing whether an area has a normal, low, medium or high drought index.
Researchers at Penn State found a correlation between jet stream strength and precipitation in the Sahel region, which has been experiencing drought since the 1970s. The Tropical Easterly Jet was mostly weaker during dry periods, while the African Easterly Jet showed slightly stronger patterns in very dry years.
Researchers can now forecast long-term climate cycles, such as the El Niño Southern Oscillation and Pacific Decadal Oscillation. By understanding these cycles, policymakers can develop strategies to lessen climate-related effects, potentially ensuring cultural survival.
A computer model predicts reliably the severity and timing of drought episodes six months in advance, helping farmers choose drought-tolerant crops and minimizing economic losses. The researchers also highlight the need to maintain adequate river levels to prevent barge traffic disruptions and ensure water supply.
Researchers from College of William and Mary and University of Arkansas found that extreme droughts from 1587-1589 and 1606-1612 affected the Tidewater region, decimating corn crops and aggravating relations with Native Americans. The findings suggest that even well-planned colonies would have struggled under these climatic conditions.
Studies found that tree species' moisture preference doesn't always correlate with their growth rate during droughts. Researchers used tree rings to analyze the energy stored in trunks, revealing inconsistencies between leaf physiology and radial growth.