Thomas Theis Nielsen
Biographic Data
| ID | 4213808 |
|---|---|
| NAME | Thomas Theis Nielsen |
| GIVEN NAMES | Thomas Theis |
| FAMILY NAME | Nielsen |
| SIGNATURE | NIELSEN T T |
| AFFILIATIONS | Roskilde University |
| ORCID | 0000-0002-8134-3456 |
| VERIFIED | Yes |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 25 |
| WORKS AS AUTHOR | 11 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1997 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Deconstructing complex micro-level migration activity in a rural municipality
Conflicting landscapes – integrating sustainable tourism in nature park developments
The aim of this paper is to analyse conflicting landscape associations linked to nature-based tourism in nature parks. Drawing from the literature on nature-based tourism development, social imaginaries and an R&D project in one of the largest former wetlands in Denmark – now a drained nature park, we examine how diversified landscape perceptions and conflicting landscape preferences result from and condition the re-enchantment of nature parks fo…
Spaces of learning – practising the SDGs through geographical fieldwork methods in a nature park
Purpose While the sustainable development goals (SDGs) and visions for sustainability education apply to many methods, they can be hard to put into practice. This study aims to concern an undergraduate geography course designed not only to teach geographical methods but also to engage with the multi-scalar nature of the SDGs and apply them to various local urban sustainability issues in a real-world context. Design/methodology/approach By means o…
Impacts of – and farmers’ adaptation to – land allocation policies in the north central uplands of Vietnam
A series of policies on land tenure have been implemented in Vietnam following the doi moi restructuring. This study assesses the impacts of these policies, the extent to which they have had intended effects and coping strategies adopted by farmers. Data were collected in five upland villages in Nghe An Province, North Central Vietnam. The intended effects of the land allocation policies were poverty alleviation, intensification of agriculture, a…
Advances in monitoring vegetation and land use dynamics in the Sahel
Vegetation dynamics of the West African Sahel has attracted great scientific interest over the last 40 years because of the dramatic inter-decadal variability observed in the resource base of the region directly impacting on the livelihoods of the West African population. From farmers to pastoralists, agro-pastoralists and forest-users, all depend on the availability of vegetation resources and are affected by fluctuations in the available vegeta…
Evaluating the quality of AVHRR Pathfinder NDVI data for the African continent using SPOT-4 Vegetation data
Geografisk Tidsskrift, Danish Journal of Geography 106(1):87–102, 2006 The AVHRR (Advanced Very High Resolution Radiometer) 8 km resolution Pathfinder NDVI (Normalized Difference vegetation Index) 10-day composite data set has been used for numerous local and global scale vegetation time series studies during recent decades. The dataset is a result of considerable processing and resampling from the original 1 km resolution AVHRR LAC (Local Area C…
The geography of pastoral mobility
The aim of this paper is to show the contribution of geography to the study of pastoral mobility. While pastoralists of Ferlo, Senegal, have become semi-sedentary, little is known about the mobility of their livestock. In this paper, pastoral mobility is analysed using GPS measurements of cattle movements made by a pastoralist from 1997 to 2000. Based on data from 3 years, a quantification of the extent of movements and mappings of the patterns a…
Documentation and evaluation of the CSE Noaa AVHRR data set
A NOAA AVHRR data set covering Senegal and parts of the surrounding countries during the period from 1987 to present is under construction and improvement in an ongoing collaboration between Centre de Suivi Écologique (CSE). Dakar. Senegal, and Institute of Geography, University of Copenhagen (IGUC). This paper details the entire processing chain from raw images to a properly calibrated, geometrically rectified and cloud-masked time-series tracki…
The fire regime of Senegal and its determinants
Biomass burning in Senegal has a range of different causes and affects many different environments. Each cause has a unique spatial and temporal distribution with its own consequences for the fire regime in Senegal. To date, this regime has been only poorly understood due to numerous methodological problems with monitoring fires and mapping their extent. Satellite remote sensing techniques provide the only realistic means of obtaining fire inform…
Going Where the Grass Is Greener
The Distribution in Time and Space of Savanna Fires in Burkina Faso as Determined from Noaa AVHRR Data
Geografisk Tidsskrift, Danish Journal of Geography 97: 86–97, 1997. Fires have significant effects on both biological diversity, nutrient cycling and emission of greenhouse gasses in the savanna zones of Africa. The meaning and characterization of the fire regimes of such areas are briefly discussed, and it is demonstrated that time series of NOAA AVHRR satellite images may be used for identifying active fires in Burkina Faso, and thus contribute…
Going Where the Grass Is Greener
The geography of pastoral mobility
The aim of this paper is to show the contribution of geography to the study of pastoral mobility. While pastoralists of Ferlo, Senegal, have become semi-sedentary, little is known about the mobility of their livestock. In this paper, pastoral mobility is analysed using GPS measurements of cattle movements made by a pastoralist from 1997 to 2000. Based on data from 3 years, a quantification of the extent of movements and mappings of the patterns a…
The Distribution in Time and Space of Savanna Fires in Burkina Faso as Determined from Noaa AVHRR Data
Geografisk Tidsskrift, Danish Journal of Geography 97: 86–97, 1997. Fires have significant effects on both biological diversity, nutrient cycling and emission of greenhouse gasses in the savanna zones of Africa. The meaning and characterization of the fire regimes of such areas are briefly discussed, and it is demonstrated that time series of NOAA AVHRR satellite images may be used for identifying active fires in Burkina Faso, and thus contribute…
Advances in monitoring vegetation and land use dynamics in the Sahel
Vegetation dynamics of the West African Sahel has attracted great scientific interest over the last 40 years because of the dramatic inter-decadal variability observed in the resource base of the region directly impacting on the livelihoods of the West African population. From farmers to pastoralists, agro-pastoralists and forest-users, all depend on the availability of vegetation resources and are affected by fluctuations in the available vegeta…
Deconstructing complex micro-level migration activity in a rural municipality
Impacts of – and farmers’ adaptation to – land allocation policies in the north central uplands of Vietnam
A series of policies on land tenure have been implemented in Vietnam following the doi moi restructuring. This study assesses the impacts of these policies, the extent to which they have had intended effects and coping strategies adopted by farmers. Data were collected in five upland villages in Nghe An Province, North Central Vietnam. The intended effects of the land allocation policies were poverty alleviation, intensification of agriculture, a…
Documentation and evaluation of the CSE Noaa AVHRR data set
A NOAA AVHRR data set covering Senegal and parts of the surrounding countries during the period from 1987 to present is under construction and improvement in an ongoing collaboration between Centre de Suivi Écologique (CSE). Dakar. Senegal, and Institute of Geography, University of Copenhagen (IGUC). This paper details the entire processing chain from raw images to a properly calibrated, geometrically rectified and cloud-masked time-series tracki…
The fire regime of Senegal and its determinants
Biomass burning in Senegal has a range of different causes and affects many different environments. Each cause has a unique spatial and temporal distribution with its own consequences for the fire regime in Senegal. To date, this regime has been only poorly understood due to numerous methodological problems with monitoring fires and mapping their extent. Satellite remote sensing techniques provide the only realistic means of obtaining fire inform…
The Distribution in Time and Space of Savanna Fires in Burkina Faso as Determined from Noaa AVHRR Data
Geografisk Tidsskrift, Danish Journal of Geography 97: 86–97, 1997. Fires have significant effects on both biological diversity, nutrient cycling and emission of greenhouse gasses in the savanna zones of Africa. The meaning and characterization of the fire regimes of such areas are briefly discussed, and it is demonstrated that time series of NOAA AVHRR satellite images may be used for identifying active fires in Burkina Faso, and thus contribute…
Going Where the Grass Is Greener
Documentation and evaluation of the CSE Noaa AVHRR data set
A NOAA AVHRR data set covering Senegal and parts of the surrounding countries during the period from 1987 to present is under construction and improvement in an ongoing collaboration between Centre de Suivi Écologique (CSE). Dakar. Senegal, and Institute of Geography, University of Copenhagen (IGUC). This paper details the entire processing chain from raw images to a properly calibrated, geometrically rectified and cloud-masked time-series tracki…
The fire regime of Senegal and its determinants
Biomass burning in Senegal has a range of different causes and affects many different environments. Each cause has a unique spatial and temporal distribution with its own consequences for the fire regime in Senegal. To date, this regime has been only poorly understood due to numerous methodological problems with monitoring fires and mapping their extent. Satellite remote sensing techniques provide the only realistic means of obtaining fire inform…
The geography of pastoral mobility
The aim of this paper is to show the contribution of geography to the study of pastoral mobility. While pastoralists of Ferlo, Senegal, have become semi-sedentary, little is known about the mobility of their livestock. In this paper, pastoral mobility is analysed using GPS measurements of cattle movements made by a pastoralist from 1997 to 2000. Based on data from 3 years, a quantification of the extent of movements and mappings of the patterns a…
Evaluating the quality of AVHRR Pathfinder NDVI data for the African continent using SPOT-4 Vegetation data
Geografisk Tidsskrift, Danish Journal of Geography 106(1):87–102, 2006 The AVHRR (Advanced Very High Resolution Radiometer) 8 km resolution Pathfinder NDVI (Normalized Difference vegetation Index) 10-day composite data set has been used for numerous local and global scale vegetation time series studies during recent decades. The dataset is a result of considerable processing and resampling from the original 1 km resolution AVHRR LAC (Local Area C…
Advances in monitoring vegetation and land use dynamics in the Sahel
Vegetation dynamics of the West African Sahel has attracted great scientific interest over the last 40 years because of the dramatic inter-decadal variability observed in the resource base of the region directly impacting on the livelihoods of the West African population. From farmers to pastoralists, agro-pastoralists and forest-users, all depend on the availability of vegetation resources and are affected by fluctuations in the available vegeta…
Impacts of – and farmers’ adaptation to – land allocation policies in the north central uplands of Vietnam
A series of policies on land tenure have been implemented in Vietnam following the doi moi restructuring. This study assesses the impacts of these policies, the extent to which they have had intended effects and coping strategies adopted by farmers. Data were collected in five upland villages in Nghe An Province, North Central Vietnam. The intended effects of the land allocation policies were poverty alleviation, intensification of agriculture, a…
Spaces of learning – practising the SDGs through geographical fieldwork methods in a nature park
Purpose While the sustainable development goals (SDGs) and visions for sustainability education apply to many methods, they can be hard to put into practice. This study aims to concern an undergraduate geography course designed not only to teach geographical methods but also to engage with the multi-scalar nature of the SDGs and apply them to various local urban sustainability issues in a real-world context. Design/methodology/approach By means o…
Conflicting landscapes – integrating sustainable tourism in nature park developments
The aim of this paper is to analyse conflicting landscape associations linked to nature-based tourism in nature parks. Drawing from the literature on nature-based tourism development, social imaginaries and an R&D project in one of the largest former wetlands in Denmark – now a drained nature park, we examine how diversified landscape perceptions and conflicting landscape preferences result from and condition the re-enchantment of nature parks fo…
Deconstructing complex micro-level migration activity in a rural municipality
Geography (11 works) · Computer Science (5 works) · Ecology (5 works) · Environmental Science (5 works) · Physical geography (5 works) · Ecology (4 works) · Environmental resource management (4 works) · Remote sensing (4 works) · Remote Sensing in Agriculture (4 works) · Sociology (4 works)