Change in precipitation in Uzbekistan in the period 1961-2016

Abstract

Uzbekistan, especially its arid zones, which occupy more than half of its area, have a high degree
of vulnerability to climate change. This article analyzes and discusses interannual changes in precipitation in
Uzbekistan. To identify the characteristics of the change, the non-parametric statistical Mann-Kendal (MK)
test and the coefficients of climatic trends were used. The results show that changes in precipitation in
Uzbekistan show great unevenness. In the period 1991-2016. Decade rates of precipitation change from -
41.43 mm / 10a in Samarkand to 24.09 mm / 10a in Akbaital, and for the period 1961-2016. they range from
-3.69 mm / 10a in Tamdy to 12.41 mm / 10a in Tashkent and do not have a high level of significance. In
Akbaital, Samarkand and Oygaing, Baysun, Chimbay, Termez, Jizzakh, Fergana, Tashkent, Karakalpakia,
Urgench, the increase in precipitation was 2.9%, 3.2%, 3.3%, 4.4%, 5.6%, 7.3%, 8.1%, 10.9%, 11.8% and
33.5% relative to the norm of the basic climatic period (1961-1990). In the Central, Southern and
Southeastern Kyzyl Kum districts, precipitation decreases by 3.8%, 11.7% and 4.8%, respectively. At the
same time, within the Kyzyl Kum desert, a pronounced negative gradient of precipitation in the direction
from north to south can be traced