Ola Hall

Sökresultat

• 2024

  Human bias and CNNs’ superior insights in satellite based poverty mapping

  Sarmadi, H., Wahab, I., Hall, O., Rögnvaldsson, T. & Ohlsson, M., 2024 okt. 2, I: Scientific Reports. 14, 22878.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Machine Learning 100%
  • Learning System 100%
  • Human Bias 100%
  • Satellite Image 75%
  • Tanzania UR 50%

• A decade of maize yield gap studies in sub-Saharan Africa: how are farm-level factors considered?

  Hall, O., Wahab, I., Dahlin, S., Hillbur, P., Jirström, M. & Öborn, I., 2024, I: International Journal of Agricultural Sustainability. 22, 1, 2293591.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Investigation 100%
  • Farm 100%
  • Subsaharan Africa 100%
  • Corn 100%
  • Africa 100%
• 2022

  "The maize is the cost of the farming, and cassava is our profit": Smallholders' perceptions and attitudes to poor crop patches in the Eastern region of Ghana

  Wahab, I., Hall, O. & Jirström, M., 2022 dec. 1, I: Agriculture & Food Security. 11, 1, 14.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Crops 100%
  • Farmers 100%
  • Maize 100%
  • Manihot Esculenta 100%
  • Profit 100%
• 2021

  The use of drones in the spatial social sciences

  Hall, O. & Wahab, I., 2021 okt. 6, I: Drones. 5, 4, 112.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Social Sciences 100%
  • Academia 100%
  • Learning 50%
  • Institution 50%
  • Economics 50%
• 2020

  Sustainable agricultural intensification in four Tanzanian villages—a view from the ground and the sky

  Djurfeldt, A. A., Hall, O., Isinika, A., Msuya, E. & Yengoh, G. T., 2020 okt. 2, I: Sustainability (Switzerland). 12, 20, 20 s., 8304.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • View 100%
  • Agricultural Intensification 100%
  • Productivity 28%
  • Cereal 28%
  • Land 14%

• An integrated approach to unravelling smallholder yield levels: The case of small family farms, eastern region, Ghana

  Wahab, I., Jirström, M. & Hall, O., 2020 juni 5, I: Agriculture. 10, 6, 206.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Region 100%
  • Smallholder 100%
  • Ghana 100%
  • Family Farm 100%
  • Maize 100%
• 2019

  Population centroids of the world administrative units from nighttime lights 1992-2013

  Hall, O., Bustos, M. F. A., Boke-Olén, N. & Niedomysl, T., 2019 okt. 28, I: Scientific Data. 6, 1, 8 s., 235.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Analysis 100%
  • Population Censuses 100%
  • True Population 100%
  • Population Change 100%
  • Census Data 100%

• Micro-Spatial Analysis of Maize Yield Gap Variability and Production Factors

  Munialo, S., Hall, O., Archila, M. (medarbetare), Boke-Olén, N., Onyango M., C., Oluoch-Kosura, W., Marstorp, H. & Djurfeldt, G., 2019 okt. 11, I: Agriculture. 9, 219, 24 s., 219.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Spatial Analysis 100%
  • Corn 100%
  • Smallholder 69%
  • Farm 46%
  • Socioeconomics 30%

• How Data-Poor Countries Remain Data Poor: Underestimation of Human Settlements in Burkina Faso as Observed from Nighttime Light Data

  Hall, O., Archila Bustos, M. F. & Andersson, M., 2019, I: ISPRS International Journal of Geo-Information. 8, 11

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång
• 2018

  Classification of Maize in Complex Smallholder Farming Systems Using UAV Imagery

  Hall, O., Dahlin, S., Marstorp, H., Archila, M., Öborn, I. & Jirström, M., 2018 juni 22, I: Drones. 2, 3, s. 1-8 8 s., 22.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Farming System 100%
  • Imagery 100%
  • Smallholder 100%
  • Pilotless Aircraft 100%
  • Corn 100%

• Remote sensing of yields: Application of UAV imagery-derived ndvi for estimating maize vigor and yields in complex farming systems in Sub-Saharan Africa

  Wahab, I., Hall, O. & Jirström, M., 2018, I: Drones. 2, 3, 16 s., 28.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Farming System 100%
  • Estimating 100%
  • Imagery 100%
  • Subsaharan Africa 100%
  • Corn 100%

• Using panel survey and remote sensing data to explain yield gaps for maize in sub-Saharan Africa

  Djurfeldt, G., Hall, O., Jirström, M., Archila, M., Holmquist, B. & Nasrin, S., 2018, I: Journal of Land Use Science. 13, 3, s. 344-357

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Economics 100%
  • Africa 100%
  • Remote Sensing 100%
  • Subsaharan Africa 100%
  • Corn 100%
• 2017

  Using Satellite Data on Nighttime Lights Intensity to Estimate Contemporary Human Migration Distances

  Niedomysl, T., Hall, O., Archila, M. & Ernstson, U., 2017 maj 4, I: Annals of the Association of American Geographers. 107, 3, s. 591-605

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Measures 100%
  • Demographic Statistics 100%
  • Intensity 100%
  • Generalizability 100%
  • Distance Measure 100%

• Data Descriptor: High-resolution African population projections from radiative forcing and socio-economic models, 2000 to 2100

  Boke-Olén, N., Abdi, H., Hall, O. & Lehsten, V., 2017 jan. 17, I: Scientific Data. 4, 160130.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Socioeconomics 100%
  • Country 100%
  • Data Set 100%
  • Radiative Forcing 100%
  • Land Use Change 50%
• 2015

  Assessing Recovery from the 2004 Indian Ocean Tsunami: An Application of Night-time Light Data and Vegetation Index

  Andersson, M., Hall, O. & Archila, M., 2015, I: Geographical Research. 53, 4, s. 436-450

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Vegetation Index 100%
  • Data Set 60%
  • Investigation 40%
  • Vegetation 40%
  • Pixel 40%

• Monitoring Economic Development from Space: Using Nighttime Light and Land Cover Data to Measure Economic Growth

  Keola, S., Andersson, M. & Hall, O., 2015, I: World Development. 66, s. 322-334

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Economics 100%
  • Accounting 33%

• Nighttime lights and population changes in Europe 1992–2012

  Archila, M., Hall, O. & Andersson, M., 2015, I: Ambio: a Journal of the Human Environment. 44, 7, s. 653-665

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Economic and Social Development 100%
  • Europe 100%
  • Population Dynamics 100%
  • Human Settlements 100%
  • Age Structure 100%
• 2012

  From Census to Grids: Comparing the Gridded Population of the World with Swedish Census Records

  Hall, O., Stroh, E. & Paya, F., 2012, I: The Open Geography Journal. 5, s. 1-5

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Geographic Information 100%
  • Information System 100%
  • Sweden 100%
  • Database 100%
  • Population Distribution 100%
• 2010

  Remote Sensing in Social Science Research

  Hall, O., 2010, I: The Open Remote Sensing Journal. 3, s. 1-16 16 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Remote Sensing 100%
  • Social Science 100%
  • Investigation 11%
  • Public 11%
  • Image 11%
• 2009

  Saving the woodpeckers: Social Capital, Governance, and Policy performance

  Hall, O., Duit, A., Mikusinski, G. & Angelstam, P., 2009, I: The Journal of Environment & Development. 18, 1, s. 42-61

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Policy 100%
  • Governance 100%
  • Biodiversity 100%
  • Social Capital 100%
  • Institution 50%
• 2008

  I inlandsisens spår

  Jansson, K. & Hall, O., 2008 dec. 1, I: Ymer. 2008, s. 347-362 16 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

• World poverty, environmental vulnerability and population at risk for natural hazards

  Hall, O., Duit, A. & Caballero, L. N., 2008, I: Journal of Maps. 4, 1, s. 151-160 10 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review
• 2005

  Characterization and quantification of data voids in the shuttle radar topography mission data

  Hall, O., Falorni, G. & Bras, R. L., 2005, I: Geoscience and Remote Sensing Letters, IEEE. 2, 2, s. 177-181 5 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift
• 2004

  Detecting dominant landscape objects through multiple scales: an integration of object-specific methods and watershed segmentation

  Hall, O., Hay, G. J., Bouchard, A. & Marceau, D. J., 2004, I: Landscape Ecology. 19, 1, s. 59-76 18 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review
• 2003

  A multiscale object-specific approach to digital change detection

  Hall, O. & Hay, G. J., 2003, I: International Journal of Applied Earth Observation and Geoinformation. 4, 4, s. 311-327 17 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review
• 2002

  A method for landscape regionalization based on fuzzy membership signatures

  Hall, O. & Arnberg, W., 2002, I: Landscape and Urban Planning. 59, 4, s. 227-240 14 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review