Topic
Precipitation
About: Precipitation is a research topic. Over the lifetime, 32861 publications have been published within this topic receiving 990496 citations. The topic is also known as: rain & rainfall.
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TL;DR: Wang et al. as discussed by the authors studied the effect of topography and elevation on the seasonal distribution of precipitation in China and found that the topography of land and sea and the nature of the underlying ground can influence the seasonal variation of precipitation.
Abstract: 1 Introduction.- 1.1 Aims and Concept of the Study.- 1.2 Climate Data.- 1.3 Review of Climate Studies on China.- 2 Controlling Factors of the Climate.- 2.1 Latitude, Longitude and Location.- 2.2 Topography and Landforms.- 2.3 Distribution of Land and Sea and Nature of the Underlying Ground.- 2.4 Seasons.- 3 Circulation.- 3.1 Seasonal Pressure Distribution at Sea Level.- 3.2 Seasonally Prevailing Winds and Air Masses.- 3.3 Winter and Summer Monsoon.- 3.3.1 Characteristics of the Monsoon in General.- 3.3.2 Onset and Duration of the Winter Monsoon.- 3.3.3 Periods of Active and Weak Winter Monsoon.- 3.3.4 Damage Due to Strong Cold Outbreaks of Winter Monsoon.- 3.3.5 Onset and Duration of the Summer Monsoon.- 3.3.6 Some Characteristics of the Summer Monsoon.- 3.4 Frontology.- 3.4.1 Mean Front Position in January and July.- 3.4.2 The Stationary Fronts in February and March as well as in the Pre-Typhoon Season in South China.- 3.4.3 Some Characteristics of the Mei-Yu Front.- 3.5 The Transient Disturbances.- 3.5.1 The Upper Westerly Troughs in the Westerlies.- 3.5.2 Extratropical Cyclones and Anticyclones.- 3.5.3 Typhoons.- 4 Temperature.- 4.1 Mean Annual Air Temperature Distribution.- 4.2 Mean Seasonal Temperature Distribution.- 4.3 Annual Range and Annual Variation of Temperature.- 4.4 Onset and End of Certain Limited Temperatures and Their Duration.- 4.4.1 Mean Daily Air Temperature ? 0 C.- 4.4.2 Mean Daily Air Temperature ? 10 C.- 4.4.3 Maximum Daily Air Temperature ? 35 C.- 4.4.4 Other Extreme Limited Temperatures.- 4.5 Vertical Distribution of Temperature.- 4.6 Comparison of Temperature at the Same Latitude.- 4.7 Diurnal Range of Temperature.- 4.8 Interannual Variability of Temperature.- 4.8.1 Variability of Annual Mean Temperature.- 4.8.2 Variability of Monthly Mean Temperatures.- 4.9 Historical-Climatic Change of Temperature During the last 5,000, 500 and 100 Years.- 5 Precipitation.- 5.1 Mean Annual Precipitation Distribution.- 5.2 Mean Seasonal Precipitation Distribution.- 5.3 Annual Variation of Precipitation.- 5.3.1 Specific Precipitation Types and Their Distribution.- 5.3.2 Variation of Wet and Dry Months over Space and Time.- 5.3.3 Summer Precipitation.- 5.4 Interannual Precipitation Variability.- 5.4.1 Variability of Annual Precipitation.- 5.4.2 Variability of Monthly Precipitation.- 5.4.3 Variability of Annual and Monthly Precipitation at Beijing.- 5.5 Precipitation Frequency Expressed in Rainy Days.- 5.6 Precipitation Intensity.- 5.7 Rainstorms and Certain Events of Heavy Rainfall.- 5.8 Diurnal Variation of Precipitation.- 5.9 Influence of Topography and Elevation on Precipitation.- 5.9.1 Influence of the Exposition of Slopes on Precipitation.- 5.9.2 Effect of Elevation on Prefipitation.- 5.10 Historical Change of Precipitation.- 5.11 Snow.- 5.11.1 Mean Length of Snow Cover Period.- 5.11.2 Number of Snowfall Days.- 5.11.3 Maximum Depth of Snow.- 5.11.4 Altitude of the Snow Line.- 6 Cloudiness and Sunshine.- 6.1 Mean Annual Cloudiness and January and July Amount.- 6.2 Sunshine.- 6.2.1 Annual Sunshine Duration.- 6.2.2 Sunshine Duration in January and July and Annual Variation.- 6.3 Global Radiation.- 6.4 Fog.- 7 Surface Wind.- 7.1 Mean and Extreme Wind Velocities.- 7.2 Local Wind Systems.- 7.2.1 Mountain and Valley Breezes.- 7.2.2 Land and Sea Breezes, Lake Breeze.- 7.2.3 Plateau Monsoon.- 7.2.4 Local Dry and Hot Winds.- 8 Climate Classification and Division of China.- 8.1 General Objectives and Fundamentals of Climate Regionalization.- 8.2 China Within Global Climate Classifications.- 8.3 National Climate Classifications of China.- 8.4 Climate Division of China According to Huang Bing-wei (1986).- 9 Climate Zones of China.- 9.1 Cold Temperate Zone (I).- 9.2 Middle Temperate Zone (II).- 9.3 Warm Temperate Zone (III).- 9.4 Northern Subtropical Zone (IV).- 9.5 Middle Subtropical Zone (V).- 9.6 Southern Subtropical Zone (VI).- 9.7 Peripheral Tropical Zone (VII).- 9.8 Middle Tropical Zone (VIII).- 9.9 Southern Tropical Zone (IX).- 9.10 Alpine Plateau Zone (H0).- 9.11 Subalpine Plateau tone (HI).- 9.12 Temperate Plateau Zone (HII).- Appendix: Climate Tables.- References.
345 citations
TL;DR: In this article, a high-resolution version of the ECHAM5 global climate model was used to simulate extratropical cyclones and how they may change in a warmer climate.
Abstract: Extratropical cyclones and how they may change in a warmer climate have been investigated in detail with a high-resolution version of the ECHAM5 global climate model. A spectral resolution of T213 (63 km) is used for two 32-yr periods at the end of the twentieth and twenty-first centuries and integrated for the Intergovernmental Panel on Climate Change (IPCC) A1B scenario. Extremes of pressure, vorticity, wind, and precipitation associated with the cyclones are investigated and compared with a lower-resolution simulation. Comparison with observations of extreme wind speeds indicates that the model reproduces realistic values. This study also investigates the ability of the model to simulate extratropical cyclones by computing composites of intense storms and contrasting them with the same composites from the 40-yr ECMWF Re-Analysis (ERA-40). Composites of the time evolution of intense cyclones are reproduced with great fidelity; in particular the evolution of central surface pressure is almost ex...
345 citations
TL;DR: In this article, the authors use lacustrine deposits related to spatially and temporally clustered large land-slides in the Sutlej Valley region of the northwest Him- alaya to calculate sedimentation rates and to infer rainfall patterns during late Pleistocene (29-24 ka) and Holocene (10-4 ka) inten-sedified monsoon phases.
Abstract: The intensity of the Asian summer-monsoon circulation varies over decadal to millennial time scales and is reflected in changes in surface processes, terrestrial environments, and marine sedi- ment records. However, the mechanisms of long-lived (2-5 k.y.) intensified monsoon phases, the related changes in precipitation distribution, and their effect on landscape evolution and sedimen- tation rates are not yet well understood. The arid high-elevation sectors of the orogen correspond to a climatically sensitive zone that currently receives rain only during abnormal (i.e., strength- ened) monsoon seasons. Analogous to present-day rainfall anom- alies, enhanced precipitation during an intensified monsoon phase is expected to have penetrated far into these geomorphic threshold regions where hillslopes are close to the angle of failure. We as- sociate landslide triggering during intensified monsoon phases with enhanced precipitation, discharge, and sediment flux leading to an increase in pore-water pressure, lateral scouring of rivers, and ov- ersteepening of hillslopes, eventually resulting in failure of slopes and exceptionally large mass movements. Here we use lacustrine deposits related to spatially and temporally clustered large land- slides (.0.5 km 3 ) in the Sutlej Valley region of the northwest Him- alaya to calculate sedimentation rates and to infer rainfall patterns during late Pleistocene (29-24 ka) and Holocene (10-4 ka) inten- sified monsoon phases. Compared to present-day sediment-flux measurements, a fivefold increase in sediment-transport rates re- corded by sediments in landslide-dammed lakes characterized these episodes of high climatic variability. These changes thus em- phasize the pronounced imprint of millennial-scale climate change on surface processes and landscape evolution.
345 citations
TL;DR: It is found that the total precipitation from these intense events almost doubles per degree of warming, mainly due to changes in frequency, while the intensity changes are relatively weak, in accordance to previous studies.
Abstract: The intensity of the heaviest extreme precipitation events is known to increase with global warming. How often such events occur in a warmer world is however less well established, and the combined effect of changes in frequency and intensity on the total amount of rain falling as extreme precipitation is much less explored, in spite of potentially large societal impacts. Here, we employ observations and climate model simulations to document strong increases in the frequencies of extreme precipitation events occurring on decadal timescales. Based on observations we find that the total precipitation from these intense events almost doubles per degree of warming, mainly due to changes in frequency, while the intensity changes are relatively weak, in accordance to previous studies. This shift towards stronger total precipitation from extreme events is seen in observations and climate models, and increases with the strength – and hence the rareness – of the event. Based on these results, we project that if historical trends continue, the most intense precipitation events observed today are likely to almost double in occurrence for each degree of further global warming. Changes to extreme precipitation of this magnitude are dramatically stronger than the more widely communicated changes to global mean precipitation.
345 citations
TL;DR: In this paper, an analysis of climate model simulations suggests that in an emission scenario without mitigation, a large fraction of tropical precipitation change will be independent of global surface warming over the twenty-first century.
Abstract: Predicting the response of tropical rainfall to climate change remains a challenge. An analysis of climate model simulations suggests that in an emission scenario without mitigation, a large fraction of tropical precipitation change will be independent of global surface warming over the twenty-first century.
344 citations