| Issue |
E3S Web of Conf.
Volume 590, 2024
6th Annual International Scientific Conference on Geoinformatics - GI 2024: “Sustainable Geospatial Solutions for a Changing World”
|
|
|---|---|---|
| Article Number | 05004 | |
| Number of page(s) | 8 | |
| Section | GIS in Ecology, Ecosystem Services, Heritage | |
| DOI | https://doi.org/10.1051/e3sconf/202459005004 | |
| Published online | 13 November 2024 | |
Research of the temporal distribution of the atmospheric aridity index and its spectrum of fluctuations on the territory of Uzbekistan
Hydrometeorological Scientific Research Institute, Uzbekistan
* Corresponding author: eshmuratovaguli@gmail.com
The issue of spatio-temporal distribution of the atmospheric aridity index SPI on the territory of Uzbekistan by month of the year is considered based on precipitation data from 1966 to 2015 at meteorological stations of the regional centers of the Republic. The adequacy of the SPI index in diagnosing dry (wet) years and its informativeness in analyzing precipitation regimes is shown. Oscillation spectra (periodograms) of the SPI index were obtained for 13 weather stations in Uzbekistan. The main periods of oscillations of 0.5, 1, 2.5, 5 and 10-12 years were identified, caused by fluctuations in the climate system on a global scale, caused by external factors. Features of the spectrum on a local scale are manifested in the structure of the periodogram, its sparseness/accuracy (number of peaks), which can be used as an objective criterion when performing climatic zoning of the study area.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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