نتایج جستجو برای: precipitation data spanning 30 years 1979
تعداد نتایج: 3519749 فیلتر نتایج به سال:
[1] Several continuous observational datasets of Artic seaice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algo...
This paper investigates the spatiotemporal variability of Contiguous Extreme Precipitation Events (CEPE) related to Madden-Julian Oscillation (MJO) activity during pre-wet season and wet in northern Northeast Brazil for 30 years (1979–2010). Inherent differences rainy regimes are associated with precipitation systems; these isolated analyse intensity spatial area covered by CEPE. A daily index ...
Rainfall is one the main drivers of soil erosion. The erosive force of rainfall is expressed as rainfall erosivity. Rainfall erosivity considers the rainfall amount and intensity, and is most commonly expressed as the R-factor in the USLE model and its revised version, RUSLE. At national and continental levels, the scarce availability of data obliges soil erosion modellers to estimate this fact...
Atmospheric circulation in the oceans surrounding southern Africa plays an important role in determining its precipitation. This study uses wind information recorded in ships’ logbooks in order to statistically reconstruct summer and winter season precipitation at four southern African weather stations from 1796-1854. The reconstruction was obtained by first relating gridded 8° x 8° NCEP-DOE re...
Hourly precipitation data from 1963 to 1993 of the contiguous United States were analyzed for secular trends in the diurnal cycle of precipitation. During the period the winter daytime and nighttime precipitation frequencies and the diurnal amplitude of precipitation frequency increased by ∼30−47% over the Southwest, while the winter precipitation frequencies and the diurnal amplitude of precip...
[1] The pathway to summertime convective precipitation remains a vexing research problem because of the nonlinear feedback between soil moisture content and the atmosphere. Understanding this feedback is important to the southeastern U. S. region, given the high productivity of the timberland area and the role of summertime convective precipitation in maintaining this productivity. Here we expl...
Depletion of water resources has threatened water security in the Beijing-Tianjin-Hebei urban agglomeration, China. However, the relative importance of precipitation and urbanization to water storage change has not been sufficiently studied. In this study, both terrestrial water storage (TWS) and groundwater storage (GWS) change in Jing-Jin-Ji from 1979 to the 2010s were investigated, based on ...
Assessing the Homogeneity of Temperature and Precipitation Data in Iran with Climatic Approach Extended Abstract: Qualitative evaluation and validation of atmospheric parameters such as precipitation and temperature are the most important condition for statistical analysis in climatic and hydrological researches. In addition, the meteorological and climatological data have a crucial role i...
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