مخاطر الشدات المطرية على سير العمليات الجيومورفية لمحافظة دهوك شمال غرب العراق باستعمال التحسس النائي و نظم المعلومات الجغرافية

Abstract EN

Rainstorms occur suddenly and have a varied impact on the course of geomorphic processes, with their massive torrents that can cause unmatched environmental risks.

Therefore, the aim of the study is to measure the intensity of rain to identify the most influential pressure systems, which lead to risks in the course of geomorphic processes in sensitive areas.

For such natural activities The lack of daily precipitation data for the ground monitoring stations.

The US satellite station data provision site http: //chrsdata.

eng.

uci.

edu was relied on to obtain rain precipitation data for the period (2000-2018) and the site http: //vortex.

plymouth/.

edu to obtain weather maps of the pressure systems for the region, and the analysis of the rainy season (2015-2016).

It included more than 40 measurement stations.

During the rainy season, (68) rain falls occurred, varying in severity and quantity.

The total number of rainy days was (14) days, while the number of hours was (336 / hour), and the water fell (315.5 / mm).

Geomorphic processes represent the natural and chemical changes that affect the preparation of materials for processes and thus alter the shape of the earth through (carving, transfer and sedimentation).

Thus, the effect of rain intensity can be measured according to the mathematical model Peltier that divides the world into morphogenetic regions (Peltier, 1971, 214-236) from The area, the type of precipitation and its effect are measured by the impact of raindrops according to (EM Fournier955) and the erosion of the rain (Douglas D.

et al, 1968).

And gully erosion (Bergsma, 1983) on the other hand.

US Landsat 8 satellite digital data processing has been used for Chang detection to detect the change of land cover due to the rainy season's falls.

And numeric elevation data for determining slopes.

And the application of EPM laboratories in identifying the direct effect of stress on the conduct of geomorphic processes in northwestern Iraq (Dohuk Governorate as a model) Figure (1).