Spatial modeling of seasonal precipitation–elevation in Iran based on aphrodite database

Spatial modeling of seasonal precipitation–elevation in Iran based on aphrodite database The precipitation–elevation relationship plays a significant role in rainfall-runoff, watershed management, and environmental management. Therefore, providing an appropriate rainfall-runoff model for areas lacking enough stations, such as mountainous regions, can play a significant role in environmental forecasting and planning. This study was designed with the aim of seasonal precipitation–elevation modeling in Iran. For this purpose, the Aphrodite precipitation Database for the period of 1951–2007 was obtained and the modeling was conducted by OLS and GWR methods by using 30-m DEM of Iran. The results showed that GWR presents the results with high precision in modeling so that this method has explained the spatial variation of seasonal precipitation of 94% for winter, 96% for spring, 86% for summer, and 93% for autumn in Iran. Precipitation- elevation modeling has shown that Iran rainy centers follow the pattern of areas facing the wind; after the final limit of elevation and the areas back to the wind. At the final limit of elevation or peak of the mountain, regardless of whether the elevation increases or decreases, the precipitation decreases and in the northern coasts there is no maximum precipitation in high elevation areas, but as we go from the mountain to the sea, the precipitation is rising. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Modeling Earth Systems and Environment Springer Journals

Spatial modeling of seasonal precipitation–elevation in Iran based on aphrodite database

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Earth Sciences; Earth System Sciences; Math. Appl. in Environmental Science; Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences; Mathematical Applications in the Physical Sciences; Ecosystems; Environment, general
ISSN
2363-6203
eISSN
2363-6211
D.O.I.
10.1007/s40808-018-0444-y
Publisher site
See Article on Publisher Site

Abstract

The precipitation–elevation relationship plays a significant role in rainfall-runoff, watershed management, and environmental management. Therefore, providing an appropriate rainfall-runoff model for areas lacking enough stations, such as mountainous regions, can play a significant role in environmental forecasting and planning. This study was designed with the aim of seasonal precipitation–elevation modeling in Iran. For this purpose, the Aphrodite precipitation Database for the period of 1951–2007 was obtained and the modeling was conducted by OLS and GWR methods by using 30-m DEM of Iran. The results showed that GWR presents the results with high precision in modeling so that this method has explained the spatial variation of seasonal precipitation of 94% for winter, 96% for spring, 86% for summer, and 93% for autumn in Iran. Precipitation- elevation modeling has shown that Iran rainy centers follow the pattern of areas facing the wind; after the final limit of elevation and the areas back to the wind. At the final limit of elevation or peak of the mountain, regardless of whether the elevation increases or decreases, the precipitation decreases and in the northern coasts there is no maximum precipitation in high elevation areas, but as we go from the mountain to the sea, the precipitation is rising.

Journal

Modeling Earth Systems and EnvironmentSpringer Journals

Published: Mar 29, 2018

References

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