Sep 30, 2024 · By October 15, the mid-level dry air engulfs most of India, leading to the withdrawal from the entire country. Almost all trajectories terminating at mid and low levels arrive from the northwest rather than oceanic sources and are predominantly descending in nature.

Jun 16, 2015 · Using long-term observations and coupled model experiments, we provide compelling evidence that the enhanced Indian Ocean warming potentially weakens the land-sea thermal contrast, dampens the...

May 26, 2023 · Using a Lagrangian-based method, we show that precipitation extremes link to dry air intrusions from the southern midlatitudes upper troposphere, crossing the equator, and reaching the Arabian...

3 days ago · The MSE is defined as m = C p T+Lq+gz, where C p represents the specific heat of dry air at constant pressure (1004 J/(K kg), T the temperature, L the latent heat of condensation at 0°C (2.5×10 6 J/kg), q the specific humidity, g the gravitational constant (9.8 m/s 2), and z the geopotential height. The MSE tendency was calculated as the ...

Apr 8, 2016 · During the monsoon onset over India, the mid-levels are characterised by an intrusion of dry mid-to-low troposphere air in northwesterly winds, as the air descends from Afghanistan and Pakistan down over India.

Sep 30, 2024 · We find that the climatological mid-level dry intrusion appears over northwest India around mid-September. Vertical profiles associated with this dry air show how the most unfavourable environment for deep convection occurs in …

Here, we present a systematic analysis of dry air intrusion over India by analyzing the monsoon seasons during 2000 – 2009 in CMIP6 models for historical experiments.

This increasing (decreasing) pattern of CDHE (CWCE) is high across North-central India, Western India, North-eastern India and South-eastern coastlines. The increasing frequency of CDHE is mainly attributed to the Indian Ocean SST variability post-1976/77 climate shift.

Compound Dry and Hot extremes (CDHE) have become increasingly frequent and intense due to climate change, posing significant threats to human health, agriculture, and ecosystems. However, there is very little research on identifying the possible modulators of CDHE and developing a reliable strategy for predicting their occurrence.

Despite a decline in the frequency of summer monsoon droughts in recent decades, increased CDHEs are mainly driven by warming and dry spells during the summer monsoon particularly in the Northeast, central northeast, and west central regions.