Evelyn Uuemaa

Evelyn Uuemaa
University of Tartu · Department of Geography

PhD

About

62
Publications
31,906
Reads
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1,851
Citations
Citations since 2017
36 Research Items
1239 Citations
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2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300

Publications

Publications (62)
Article
Full-text available
Climate change and the continuing increase in human population creates a growing need to tackle urban stormwater problems. One promising mitigation option is by using nature-based solutions (NBS) – especially sustainable urban stormwater management technologies that are key elements of NBS action. We used a synthesis approach to compile available i...
Article
Full-text available
Phenological responses of vegetation to global warming impact ecosystem gross primary production and evapotranspiration. However, high resolution and large spatial scale observational evidence of such responses in undisturbed core forest areas is lacking. Here, we analyse MODIS satellite data to assess monthly trends in gross primary productivity a...
Article
Full-text available
A Discrete Global Grid System (DGGS) is a type of spatial reference system that tessellates the globe into many individual, evenly spaced, and well-aligned cells to encode location and, thus, can serve as a basis for data cube construction. This facilitates integration and aggregation of multi-resolution data from various sources to rapidly calcula...
Article
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Soil and land use information are important inputs for physically-based hydrological modeling such as SWAT. Although fine resolution local or regional data are often preferred for modeling, it is not always reliable that these data can lead to better model performance. In this study, we investigate the effect of input data on the sensitivity and un...
Article
Full-text available
Discrete Global Grid Systems (DGGS) are spatial reference systems that use a hierarchical tessellation of cells to partition and address the globe and provide alternative spatial data format and indexing methods as compared to traditional vector and raster spatial data. In order to effectively use DGGS, functional software needs to be available and...
Article
Wetlands that are restored for carbon sequestration or created for water treatment are an important sources of greenhouse gases, especially methane. The emission of nitrous oxide (N 2 O) from these systems is often considered negligible due to the inundation and anerobic conditions that support complete denitrification. We used closed chamber metho...
Article
Full-text available
Study region The Porijõgi catchment in Estonia, Northern Europe. Study focus The lack of adequate precipitation gauges has long been a major obstacle for hydrological modeling. To date, the global availability of satellite and reanalysis precipitation (SRP) products at an increasingly high spatiotemporal resolution has made their use in hydrologic...
Article
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Nutrient runoff from agricultural production is one of the main causes of water quality deterioration in river systems and coastal waters. Water quality modeling can be used for gaining insight into water quality issues in order to implement effective mitigation efforts. Process-based nutrient models are very complex, requiring a lot of input param...
Article
Coupled usage of remote sensing and geotagged social media data responds to the growing interest in the spatially explicit operationalisation of cultural ecosystem services (CES). However, synergies of integrated usage of these data sources have not yet been unveiled to improve CES accessibility. This study aimed at applying the integrated remote s...
Article
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Large-scale hydrological studies are often limited by the lack of available observation data with a good spatiotemporal coverage. This has affected the reproducibility of previous studies and the potential improvement of existing hydrological models. In addition to the observation data themselves, insufficient or poor-quality metadata have also dis...
Article
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The purpose of this study is to find out how many people died of lightning strikes in Estonia from 1880 to 1940. Data about lighting victims were mostly searched for in digitalised old newspapers. The journalistic reports were verified with the help of death records available in church registers. In addition, the data were verified using official s...
Article
Identification of flood-prone sites in urban environments is necessary, but there is insufficient hydraulic information and time series data on surface runoff. To date, several attempts have been made to apply deep-learning models for flood hazard mapping in urban areas. This study evaluated the capability of convolutional neural network (NNETC) an...
Article
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Shifts in climate driven by anthropogenic land use and land cover change are expected to alter various land–atmosphere interactions. Evapotranspiration (ET) is one of these processes and plays a fundamental role in the hydrologic cycle. Using gridded reanalysis and remote sensing data, we investigated the spatiotemporal trends of precipitation, tem...
Preprint
Full-text available
A major problem related to global water quality analysis and modelling has been the lack of available good quality and consistent water quality measurement datasets with a global spatial coverage. Current study aims to contribute into improving the global datasets on water quality by aggregating and harmonizing five national, continental and global...
Article
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To understand, model, and predict landscape evolution, ecosystem services, and hydrological processes, the availability of detailed observation-based soil data is extremely valuable. For the EstSoil-EH dataset, we synthesized more than 20 eco-hydrological variables on soil, topography, and land use for Estonia (https://doi.org/10.5281/zenodo.347328...
Article
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This research is focused on identifying urban sprawl pattern and extent in two rapidly growing major Ghanaian cities (Accra and Kumasi) and how urban expansion affected heat island effect over the period of 2002-2017 using remote sensing imagery. The research employed remotely sensed images from Landsat 7 and 8 missions for mapping the urban sprawl...
Article
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Freely available global digital elevation models (DEMs) are important inputs for many research fields and applications. During the last decade, several global DEMs have been released based on satellite data. ASTER and SRTM are the most widely used DEMs, but the more recently released, AW3D30, TanDEM-X and MERIT, are being increasingly used. Many re...
Article
Constructed wetlands are used as an effective measure to improve water quality and reduce nutrient runoff from agriculture. However, their role as alternative breeding sites for different amphibian species is rarely explored. We studied amphibians' colonization and breeding success in two in-stream free surface water wetlands in intensively managed...
Article
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The pool of dissolved organic carbon (DOC), is one of the main regulators of the ecology and biogeochemistry of inland water ecosystems, and an important loss term in the carbon budgets of land ecosystems. We used a novel machine learning technique and global databases to test if and how different environmental factors contribute to the variability...
Article
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Persistent forest loss in the Brazilian Legal Amazon (BLA) is responsible for carbon emission, reduction of ecosystem services, and loss of biodiversity. Combining spatial data analysis with high spatial resolution data for forest cover and forest loss, we quantified the spatial and temporal patterns of forest dynamics in the BLA. We identified an...
Article
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Soil erosion caused by climate and land-use changes is one of the biggest environmental challenges in highland Ethiopia. The aim of this study was to assess the future soil erosion risks and evaluate the potential conservation measures in the Rib watershed, northwestern highland Ethiopia. We used the HadGEM2-ES model with a moderate greenhouse gas...
Article
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Calcareous alvar grasslands are one of the most species-rich habitats in Estonia. Land-use change and cessation of traditional agricultural practices have led to a decrease of the area of these valuable grasslands during the past century. Therefore, their conservation and restoration are becoming increasingly important. Efforts to restore these hab...
Preprint
Full-text available
Abstract. The Soil Map of Estonia is a vector dataset that maps more than 750 000 soil units throughout Estonia at a scale of 1:10 000. It is the most detailed and information-rich dataset for soils in Estonia, a Baltic country with an area of approximately 45 000 km<sup>2</sup>. For each soil unit, it describes the soil type, quality, texture, and...
Article
Check dams are widely used watershed management measures for reducing flood peak discharge and sediment transport, and increasing lag time and groundwater recharge throughout the world. However, identifying the best suitable sites for check dams within the stream networks of various watersheds remains challenging. This study aimed to develop an ope...
Article
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Mountainous areas are highly prone to a variety of nature-triggered disasters, which often cause disabling harm, death, destruction, and damage. In this work, an attempt was made to develop an accurate multi-hazard exposure map for a mountainous area (Asara watershed, Iran), based on state-of-the art machine learning techniques. Hazard modeling for...
Preprint
Geographical Information Science (GIScience), also Geographical Information Science and Systems, is a multi-faceted research discipline and comprises a wide variety of topics. Investigation into data management and interoperability of geographical data and environmental data sets for scientific analysis, visualisation and modelling is an important...
Preprint
Full-text available
Geographical Information Science (GIScience), also Geographical Information Science and Systems, is a multi-faceted research discipline and comprises a wide variety of topics. Investigation into data management and interoperability of geographical data and environmental data sets for scientific analysis, visualisation and modelling is an important...
Article
The green infrastructure (GI) is a network of natural and semi-natural areas with environmental features that is designed and managed to deliver a wide range of ecosystem services. The concept has roots in the former hierarchical system of ecological networks. There are several examples of GIs, but details of their implementation at a landscape lev...
Article
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The quality of spatial data may vary spatially. If mapping (interpretation of orthophotos) is done during fieldwork, this variation in quality may occur as a result of differences in the complexity of the landscape, differences in the characteristics of individual field workers, and differences in their perception of the landscape. In this study, w...
Article
Full-text available
Wetlands play a key role in controlling flooding and non-point-source (diffuse) pollution. They are therefore an important tool for mitigating diffuse water pollution from farms. However, to use this tool, it is necessary to obtain detailed assessments and identification of potential wetland restoration or creation sites. This is complicated by the...
Article
Excess nutrients cause eutrophication of freshwaters all over the world. Decision-support tools are needed to assess nutrient discharges from catchments. This paper used a 28-year nutrient-discharge, hydroclimate and land-use history of small rural catchments to calibrate a simple nitrogen (N) and phosphorus (P) runoff model. The N and P runoffs de...
Article
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We analyzed the corpus of three geoscientific journals to investigate if there are enough locational references in research articles to apply a geographical search method, such as the example of New Zealand. Based on all available abstracts and all freely available papers of the "New Zealand Journal of Geology and Geophysics", the "New Zealand Jour...
Article
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Natural wetlands can play a key role in controlling non-point source pollution, but quantifying their capacity to reduce contaminant loads is often challenging due to diffuse and variable inflows. The nitrogen removal performance of a small natural headwater wetland in a pastoral agricultural catchment in Waikato, New Zealand was assessed over a tw...
Preprint
Full-text available
1) Background: We analyzed the corpus of three geoscientific journals to investigate if there are enough locational references in research articles to apply a geographical search method, on the example of New Zealand. 2) Methods: Based on all available abstracts and all freely available papers of the New Zealand Journal of Geology and Geophysics, t...
Chapter
The evaluation of landscape patterns is necessary to explain the relationships between ecological processes and spatial patterns and between the processes and patterns and the factors that control them or that they control. For decades, landscape metrics have been used to measure and abstract landscape patterns. Since the emergence of FRAGSTATS in...
Article
During the last hundred years European landscapes have experienced an extensive change in structure including a substantial loss of wetland habitats. In the current study we examined the influence of landscape change and current landscape composition on the genetic diversity of Rhinanthus osiliensis, a very rare endemic plant with narrow distributi...
Article
In an increasingly GIS-literate world, the availability of quality topographic maps and map databases is critical for the numerous users of spatial data. Particularly governmental agencies, first responders, and utility and transportation services, rely on the completeness and classification correctness of these maps. Estonia has systematically upd...
Chapter
In this article we consider landscape as a geosystem or a geocomplex, a comprehensive complex of natural (physical, chemical, biological) and anthropogenic factors distinguished at various hierarchical levels. The main natural factors in such a complex landscape system are water, topography, soil, geology, and climatic conditions, as well as plants...
Article
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There have been 40 Geography Olympiads in Estonia since the 1965/1966 academic year. The structure and subject matter of the competition have certainly changed over this time. Now the Geography Olympiad takes place every year in two rounds: one at the regional (county and city) level and then a final (national) round. Students compete in four age g...
Conference Paper
Full-text available
This study is aimed to analyse relationships between the environmental factors and the spatial distribution of the main functional genes nirS, nirK, and nosZ regulating the denitrification process. Variations in hydrological regime, soil temperature and peat quality have been taken into the consideration at both local and global scale. Measurements...
Article
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The quantification of landscape patterns and the changes caused by suburbanisation processes is essential to the understanding of the causes and consequences of the human-induced spatial patterns. By using spatial gradients along main roads near cities, we attempted to quantify the influence of roads on the suburbanisation process and settlement st...
Article
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Landscape structure affects farmland bird species richness and diversity at different scales. We develop a predictive, metric-based model for farmland bird species richness in different bird guilds and study how the research area size influences the relationship between bird diversity and landscape metrics. Thirty research locations (randomly selec...
Article
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We calculated 15 landscape metrics on 35 Estonian landscapes and performed factor and principal component analyses in order to determine which landscape metrics work on Estonian Basic Map and which do not. The results showed that there are four main components that describe landscape structure: dominance, contrast, shape complexity, and composition...
Article
We estimated CH4 and N2O emissions from the main land-use types in rural landscapes using data from the literature (950 study sites/experiments from the temperate and boreal zone published from 1980 to 2009 in 165 scientific papers indexed by the ISI Web of Science) and assessed the emission potential of CH4 and N2O from rural landscapes in Estonia...
Article
The 1st International Conference on Impact Assessment of Land Use Changes (IALUC) was held from the 6th to 9th of April 2008 at Humboldt University in Berlin, Germany. At the meeting, 160 oral presentations (including five plenary speeches) and 69 posters by representatives from 39 countries were presented. Papers and posters in four general sessio...
Article
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The homogenization and fragmentation of landscapes caused by intensive management is an increasing problem worldwide. Therefore, there is need for development of methods that help to improve sustainable management and maintain the identity of landscapes. We proposed that landscape coherence is the similarity between soil pattern (potential landscap...
Article
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The aim of this overview paper is to analyze the use of various landscape metrics and landscape indices for the characterization of landscape structure and various processes at both landscape and ecosystem level. We analyzed the appearance of the terms landscape metrics/indexes/indices in combination with seven main categories in the field of lands...
Article
Soil cover, which is one of the most informative and integrative landscape factors, can be used for the analysis of landscape patterns. We studied the spatial autocorrelation (Moran's I) of raster format soil maps (1:10,000; 10m pixel size) in 35 study areas representing all landscape regions in Estonia. The carbonate concentration of soils, volume...
Article
Full-text available
Water quality in streams is dependent on landscape metrics at catchment and wetland scales. A study was undertaken to evaluate the correlation between landscape metrics, namely patch density and area, shape, heterogeneity, aggregation, connectivity, land-use ratio, and water quality variables (salinity, nutrients, sediments, alkalinity, other poten...
Article
Full-text available
We investigated the relationship between land use parameters and FRAGSTATS-based landscape metrics (Edge Density, Patch Density, Mean Shape Index, Mean Euclidean Nearest Neighbour Index, Contagion, Patch Richness Density and Shannon's Diversity Index) and nutrient/organic-matter-based water quality indicators (BOD7 and CODKMnO4 values, total-N and...
Conference Paper
Full-text available
Land use changes over time can be analysed in several ways. We studied the spatial autocorrelation (Moran’s I) of raster format land use maps from three different time periods (1900, 1940, and 2000) in 13 study areas representing most of the landscape regions in Estonia. Human influence was taken into consideration in compiling a scale of the contr...
Article
Full-text available
We investigated scale dependence of landscape metrics and the relationship between land use parameters and FRAGSTATS-based landscape metrics (edge density (ED), patch density (PD), mean shape index (SHAPE_MN), mean euclidean nearest neighbor index (ENN_MN), contagion (CONTAG), patch richness density (PRD), and Shannon's diversity index (SHDI)) and...
Article
The objective of this research was to assess the potential excess nitrogen (PEN) under different land use categories based on a GIS model and compare modelling results with observed data in Porijõgi River catchment (258 km2) in southern Estonia. Three subcatchments of Porijõgi River (Vända, Sipe and Porijõgi upper course) were used to calibrate the...

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Projects (4)
Project
This pan-European citizen science campaign will explore the patterns of floral morph frequencies of cowslips (Primula veris) all across Europe. The initiative unites researchers, school networks, botanical gardens, environmental organizations and citizen scientists in the study of biodiversity consequences of habitat loss, which can be expressed in the patterns of cowslip flowers. The observations are suitable for everybody and require no previous background knowledge. Find out more here: www.cowslip.science.