Erdenesukh Sumiya

National University of Mongolia | NUM · department of meteorology and hydrology

Many studies have been conducted on air pollution in Ulaanbaatar city. However, most have focused on the sources of pollutants and their characteristics and distribution. Although the location of the city subjects it to unavoidable natural conditions where air pollution accumulates during the cold season, nature-based solutions have not yet been co...

The main objective of this study is to investigate land degradation and environmental change in Mongolia using time series of multi-sources remotely sensed data and advanced approaches. As the data analysis techniques, the Random Forest (RF) classifier, Ordinary Least Square (OLS), and Partial Least Square (PLS) regressions, Break for Additive Seas...

Уур амьсгалын дулаарлын гол шалтгаан болоод байгаа нүүрсхүчлийн хийн агууламжийг бууруулахад түүний жилийн доторх явцыг тодорхойлж, нөлөөлөх хүчин зүйлийг судлах нь чухал. Бид энэхүү судалгаагаар Монгол орны агаар дахь нүүрсхүчлийн хийн агууламжийн сарын дундаж утгыг авч үзэж ‘MODIS’ ‘NDVI’, агаарын температур, салхины хурднаас хэрхэн хамаарч байга...

The main objectives of this study were to use the statistical model (ANUSPLIN) to calculate the updated norms Mongolia of air temperature and precipitation (average for 1991-2020 according to the World Meteorological Organization) with high spatial accuracy for any grid, and to perform objective analysis in observation data. GTOPO30 (global digital...

At a time when climate change is affecting human health and the number of people with chronic diseases is increasing, people are trying to use natural treatments and aftercare. Although Mongolian territory for the weather evolution index is divided into three bioclimatic regions, the study about its effects on human health is rare. The aim of the s...

Greenhouse gases (GHGs) released from permafrost regions may have a positive feedback to climate change, but there is much uncertainty about additional warming from the permafrost carbon cycle. One of the main reasons for this uncertainty is that the observation data of large-scale GHG concentrations are sparse, especially for areas with rapid perm...

Land degradation and desertification have been ranked as a major environmental issue for arid and semi-arid regions is a comprehensive concept that depends on many factors. Detecting early land degradation is a significant issue of social and environmental with geographical information system (GIS) and remote sensing methods has been used for the i...

The climate of Mongolia is a harsh continental climate with four distinctive seasons, high annual and diurnal temperature fluctuations, and low rainfall. Because of the country’s high altitude, it is generally colder than that of other countries in the same latitude. This study focuses on evaluating the suitability of two interpolation methods in t...

Global maps of bioclimatic variables currently exist only at very coarse spatial resolution (e.g. World-Clim). For ecological studies requiring higher resolved information, this spatial resolution is often insufficient. The aim of this study is to estimate important bioclimatic variables of Mongolia from Earth Observation (EO) data at a higher spat...

The aim of this study is to estimate the spatial distribution of aridity and moisture indices using remotely sensed time-series data. For the analysis, we have chosen two simple climatic indices. One of two indices was the De Martonne aridity index, and the other one was the Mezentsev moisture index. The study area covers the total territory of Mon...

Human biometeorology is experiencing a resurgence because of concerns about the impact of weather and climate on living organisms and the effects of human activities on the atmospheric environment. The primary location of the settlement area for the public of Batsumber town, Tuv province, is geographically surrounded by mountains along to the Khui...

The Ugii Nuur Lake is not only one of the small hydrologically closed lakes located in the Orkhon River Basin in Central Mongolia but also the most vulnerable area for global climate change. Therefore, this study aims to investigate the impacts of recent global climate change on the water surface area. The data we analyzed were various measured hyd...

Water resources are dramatically sensitive to climate change in Mongolia. In this study, the authors aimed to evaluate the impact of climate change on Ogii Lake by using the estimated daily evaporation from the lake and the variation in the surface area of the lake. Ogii Lake is located in the eastern region of Arkhangai Province, central Mongolia,...

Permafrost of high latitude ecosystems contains an estimated 1700 Gt of carbon dioxide (CO2) and methane (CH4), which is almost twice as much greenhouse gas (GHG) as is currently contained in the atmosphere. GHG emissions are a great concern for the sustainable development of Central Asia because of the future projections of global warming and rela...

Ugiinuur Lake is one of the small hydrologically closed lake located in Orkhon River Basin in Central Mongolia. This study investigated the annual precipitation, air temperature, and river discharge variability at two selected stations of the sub-basin by using Mann-Kendall (MK), Innovative trend analysis method (ITAM), and Sen’s slope estimator te...

In this study, the temporal variability of surface ozone along with a study of the effects of the photochemistry and meteorological processes on the surface ozone concentrations over Ulaanbaatar city is investigated using the surface observation, radiosonde, reanalysis and back trajectory of air mass data during 2014.

The aim of this study is to conduct urban land cover mapping in Mongolia using optical and synthetic aperture radar (SAR) images. To extract the reliable urban land cover information from the available remote sensing (RS) data sets, a refined maximum likelihood classification algorithm that uses spectral and spatial thresholds defined from the loca...