Cited by 3,196Climate variability and modelsMeteorological Phenomena and SimulationsPrecipitation Measurement and Analysis

The DOI matches its Crossref record; 55 of the 81 references it cites were found in a registry or an index.

The Changing Character of Precipitation

Open access
Trenberth, Kevin E., Dai, Aiguo, Rasmussen, Roy M., Parsons, David B.·2003·Bulletin of the American Meteorological Society

Abstract

From a societal, weather, and climate perspective, precipitation intensity, duration, frequency, and phase are as much of concern as total amounts, as these factors determine the disposition of precipitation once it hits the ground and how much runs off. At the extremes of precipitation incidence are the events that give rise to floods and droughts, whose changes in occurrence and severity have an enormous impact on the environment and society. Hence, advancing understanding and the ability to model and predict the character of precipitation is vital but requires new approaches to examining data and models. Various mechanisms, storms and so forth, exist to bring about precipitation. Because the rate of precipitation, conditional on when it falls, greatly exceeds the rate of replenishment of moisture by surface evaporation, most precipitation comes from moisture already in the atmosphere at the time the storm begins, and transport of moisture by the storm-scale circulation into the storm is vital. Hence, the intensity of precipitation depends on available moisture, especially for heavy events. As climate warms, the amount of moisture in the atmosphere, which is governed by the Clausius–Clapeyron equation, is expected to rise much faster than the total precipitation amount, which is governed by the surface heat budget through evaporation. This implies that the main changes to be experienced are in the character of precipitation: increases in intensity must be offset by decreases in duration or frequency of events. The timing, duration, and intensity of precipitation can be systematically explored via the diurnal cycle, whose correct simulation in models remains an unsolved challenge of vital importance in global climate change. Typical problems include the premature initiation of convection, and precipitation events that are too light and too frequent. These challenges in observations, modeling, and understanding precipitation changes are being taken up in the NCAR “Water Cycle Across Scales” initiative, which will exploit the diurnal cycle as a test bed for a hierarchy of models to promote improvements in models.

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Show all 81 references

Research works printed but not linked: 1

  1. Burlutskiy, R. F., 2000: Diagnosis of the energy cycle of the Northern Hemisphere from the analysis of Hydrometcentre of Russia and ECMWF reanalysis. Proc. Second WCRP Int. Conf. on Reanalysis, WCRP- 109, WMO/TD-No. 985, Wokefield Park, United Kingdom, WCRP, 390-393.

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Metadata

Authors
Trenberth, K. E., Dai, A., Rasmussen, R. M., & Parsons, D. B.
Affiliations
NSF National Center for Atmospheric Research (US)
Corresponding author
Trenberth, Kevin E.
Venue
Bulletin of the American Meteorological Society
Published
2003-09-01
Volume
84
Issue
9
Pages
1205-1218
ISSN
  • 0003-0007 (ISSN-L)
  • 1520-0477
OpenAlex
W2138644576
Cited by
3,196
References
81
Citations by year
2026: 195 · 2025: 230 · 2024: 244 · 2023: 257 · 2022: 262 · 2021: 234 · 2020: 208 · 2019: 213 · 2018: 141 · 2017: 151 · 2016: 149 · 2015: 125 · 2014: 99 · 2013: 126 · 2012: 107
FWCI
32.60
Type
journal article
Language
en
Open access
Locations
Bulletin of the American Meteorological Society (publishedVersion)
Funders
National Science Foundation
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Precipitation Measurement and Analysis
Keywords
precipitation intensity, precipitation duration, precipitation frequency, diurnal cycle, moisture transport, Clausius-Clapeyron scaling, climate change, heavy rainfall, convective initiation, climate model evaluation, droughts and floods

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