نتایج جستجو برای: monthly precipitation prediction

تعداد نتایج: 339184  

ژورنال: آبخیزداری ایران 2019

Any changes in the climate system affect on the access and management of natural resources such as water and soil. Temperature and precipitation are the key elements of climate for studying their trend can be important for atmospheric scientists, environmental managers and planners in the field of hydrology, agriculture, environment and so on. In this study, the trend of climate fluctuations wa...

Drought is the main causes of significant water imbalance, increase of crop losses or limitation in water consumption, and finally large number of socioeconomic and environmental problems. Precipitation amount is the most important climatic variables that its spatiotemporal variability has a great influence on water resources availability along with the effects of climate change. The Angot inde...

Widespread and long-term effects of droughts has caused it to be known as the worst natural disaster that causes water and food deficiency in affected areas. One of the popular indexes in recognizing and monitoring of drought is Standardized Precipitation Index (SPI) that its efficiency has been approved in the world. Trend detection is very important to manage water resources. The Mann-Kendall...

Journal: :Water 2023

In this study, we analyzed the spatial and temporal characteristics of extreme precipitation in summer southern Xinjiang (SXJ) using CN05.1 daily data, National Centers for Environmental Prediction (NCEP) monthly average ERA5 four-times-daily reanalysis data from 1961 to 2020, determined interdecadal variation precipitation, further explored circulation mechanisms anomalous water vapor transpor...

2012
Soumyadeep Chatterjee Arindam Banerjee Snigdhansu Chatterjee Auroop Ganguly

One of the key challenges of climate science today is the understanding and prediction of rainfall and other precipitation events [6]. It holds high values for both scientists and policymakers in terms of obtaining novel scientific insight into the processes of precipitation formation, as well as predictions and associated uncertainties which decide future policy decisions based on them. One of...

2011
Kenji Matsuura

Our primary source for climate data is the Terrestrial Air Temperature and Precipitation: 19002006 Gridded Monthly Time Series, Version 1.01 (2007), compiled by Kenji Matsuura and Cort Willmott in conjunction with NASA. The data are available at http://climate.geog.udel.edu/ ~climate/html_pages/download.html. This dataset combines station data on mean air temperature and precipitation from a nu...

2014
Alexandre M. Ramos Nicola Cortesi Ricardo M. Trigo

*Correspondence: Alexandre M. Ramos, Faculdade de Ciências, Instituto Dom Luiz, Universidade de Lisboa, Campo Grande, Edf. C8, Piso 3, Sala 8.3.1, 1749-016 Lisboa, Portugal e-mail: [email protected] The relationships between atmospheric circulation patterns and daily Iberian rainfall are here explored at high spatial resolution (0.2◦) using the Jenkinson and Collison automated classification sch...

ژورنال: علوم آب و خاک 2004
امین شیروانی, , سیدمحمدجعفر ناظم السادات, ,

In Iran, about 75% of national rice production is supplied in Gilan and Mazandaran proviences which have the highest amount of precipitation. Seasonal prediction of rainfall induces significant improvement on yield production and on preventing climate hazardz over these feritle areas. Canonical correlation analysis (CCA) model was carried out evaluates the possibility of the prediction of win...

2006
A. Mavrakis

In this paper an attempt is made to investigate the possible temporal correlation between heavy precipitation episodes and cosmic rays’ activity, on various time scales. Cosmic rays measurements are sparse and cover less extended periods than those of precipitation. Precipitation is largely influenced by local climatic and even physiographic conditions, while cosmic rays’ distribution is far mo...

1997
George J. Huffman Robert F. Adler Philip Arkin Alfred Chang Ralph Ferraro Arnold Gruber John Janowiak Alan McNab Udo Schneider

The Global Precipitation Climatology Project (GPCP) has released the GPCP Version 1 Combined Precipitation Data Set, a global, monthly precipitation dataset covering the period July 1987 through December 1995. The primary product in the dataset is a merged analysis incorporating precipitation estimates from low-orbit-satellite microwave data, geosynchronous-orbit-satellite infrared data, and ra...

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