نتایج جستجو برای: precipitation network aphrodit

تعداد نتایج: 729031  

2007
GEORGE H. TAYLOR MATTHEW K. DOGGETT JOSEPH I. SMITH

899 JUNE 2007 AMERICAN METEOROLOGICAL SOCIETY | T he Cooperative Observer Program (COOP) was established in the 1890s to make daily meteorological observations across the United States, primarily for agricultural purposes. The COOP network has since become the backbone of temperature and precipitation data that characterize means, trends, and extremes in U.S. climate. COOP data are routinely us...

2006
Jerry M. Davis Jenise L. Swall

The ability of the US Environmental Protection Agency’s Community Multi-scale Air Quality (CMAQ) model to simulate the wet deposition of ammonium during 8-week winter and summer periods in 2001 is evaluated using observations from the National Acid Deposition Program (NADP) monitoring sites. The objective of this study is to ascertain the effects of precipitation simulations and emissions on CM...

Journal: :Environmental monitoring and assessment 2012
Natalie E Latysh Gregory Alan Wetherbee

High-elevation regions in the United States lack detailed atmospheric wet-deposition data. The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) measures and reports precipitation amounts and chemical constituent concentration and deposition data for the United States on annual isopleth maps using inverse distance weighted (IDW) interpolation methods. This interpolation...

2011
K. Price S. T. Purucker S. R. Kraemer

Watershed hydrologic and fate-andtransport models are widely used to forecast water quantity and quality responses to alternative land use and climate change scenarios. The ability of such tools to forecast changes in ecosystem services with reasonable accuracy depends on calibrating reliable simulations of streamflow, which in turn require accurate climatic forcing data. Precipitation is widel...

Journal: :Geoscientific Model Development 2022

Abstract. Natural disasters caused by heavy rainfall often cause huge loss of life and property. Hence, the task precipitation nowcasting is great importance. To solve this problem, several deep learning methods have been proposed to forecast future radar echo images, then predicted maps are converted distribution rainfall. The prevailing spatiotemporal sequence prediction apply a ConvRNN struc...

2014
A. Devasthale L. Norin

Using measurements from the national network of 12 weather radar stations for the 11-year period 2000–2010, we investigate the large-scale spatio-temporal variability of precipitation over Sweden. These statistics provide useful information to evaluate regional climate models as well as for hydrology and energy applications. A strict quality control is applied to filter out noise and artifacts ...

Journal: :International Journal of Mathematical, Engineering and Management Sciences 2016

Journal: :Remote Sensing 2017
Yandy G. Mayor Iryna Tereshchenko Mariam Fonseca-Hernández Diego A. Pantoja Jorge M. Montes

This study evaluates the precipitation product of the Integrated Multi-satellitE Retrievals for Global Precipitation Measurement (IMERG) over the Mexican region during the period between April 2014 and October 2015 using three different time scales for cumulative precipitation (hourly, daily and seasonal). Also, the IMERG data have been analyzed as a function of elevation given the rain gauges ...

Journal: :اکو هیدرولوژی 0
مهدی بهرامی استادیار، گروه علوم و مهندسی آب، دانشکدۀ کشاورزی، دانشگاه فسا محمدجواد امیری استادیار، گروه علوم و مهندسی آب، دانشکدۀ کشاورزی، دانشگاه فسا فاطمه رضایی مهارلویی دانشجوی کارشناسی ارشد آبیاری و زهکشی، گروه علوم و مهندسی آب، دانشکدۀ کشاورزی، دانشگاه فسا کرامت الله غفاری مربی گروه فناوری اطلاعات، دانشکدۀ مهندسی، دانشگاه فسا

since many time series are not normal, it is required to normalize data by transformation functions prior to any analysis and modeling. in this study, the next month rainfall of abadeh county station was predicted using the average monthly rainfall, minimum and maximum temperatures and minimum and maximum humidity as inputs of mlp network, both normally and raw, at period 1976 to 2013. after sc...

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