Articles | Volume 15, issue 12
https://doi.org/10.5194/essd-15-5535-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-15-5535-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
High-resolution digital elevation models and orthomosaics generated from historical aerial photographs (since the 1960s) of the Bale Mountains in Ethiopia
Mohammed Ahmed Muhammed
CORRESPONDING AUTHOR
Department of Environmental Informatics, Faculty of Geography, Philipps-Universität Marburg, Deutschhausstraße 12, 35032 Marburg, Germany
Remote Sensing and Geo-Informatics Stream, School of Earth Sciences, College of Natural and Computational Science, Addis Ababa University, Addis Ababa, 1176, Ethiopia
Binyam Tesfaw Hailu
Remote Sensing and Geo-Informatics Stream, School of Earth Sciences, College of Natural and Computational Science, Addis Ababa University, Addis Ababa, 1176, Ethiopia
Department of Geosciences and Geography, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), 00014 Helsinki, Finland
Georg Miehe
Department of Geography, Vegetation Geography, Philipps-Universität Marburg, Deutschhausstraße 10, 35032 Marburg, Germany
Luise Wraase
Department of Environmental Informatics, Faculty of Geography, Philipps-Universität Marburg, Deutschhausstraße 12, 35032 Marburg, Germany
Thomas Nauss
Department of Environmental Informatics, Faculty of Geography, Philipps-Universität Marburg, Deutschhausstraße 12, 35032 Marburg, Germany
Dirk Zeuss
Department of Environmental Informatics, Faculty of Geography, Philipps-Universität Marburg, Deutschhausstraße 12, 35032 Marburg, Germany
Related authors
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Juliane Röder, Tim Appelhans, Marcell K. Peters, Thomas Nauss, and Roland Brandl
Web Ecol., 24, 11–33, https://doi.org/10.5194/we-24-11-2024, https://doi.org/10.5194/we-24-11-2024, 2024
Short summary
Short summary
We studied rates of litter decomposition in natural and disturbed vegetation on elevation gradients of Mount Kilimanjaro to disentangle effects of climate and disturbance. Decomposition was slower in disturbed than in natural forests, but we did not find a negative effect of disturbance for non-forest vegetation. Decomposition slowed down with increasing land-use intensity, but only in the warm wet season. Temperature and humidity were the most important drivers of decomposition in all analyses.
Cited articles
AgiSoft LLC: Agisoft Metashape Professional: Version 1.8.0.13794 [software], St. Petersburg, https://www.agisoft.com/downloads/installer/ (last access: 7 December 2023), 2021.
Aguilar, F. J., Agüera, F., Aguilar, M. A., and Carvajal, F.: Effects of Terrain Morphology, Sampling Density, and Interpolation Methods on Grid DEM Accuracy, Photogramm. Eng. Remote Sens., 71, 805–816, https://doi.org/10.14358/PERS.71.7.805, 2005.
Altmaier, A. and Kany, C.: Digital surface model generation from CORONA satellite images, ISPRS J. Photogramm. Remote, 56, 221–235, https://doi.org/10.1016/S0924-2716(02)00046-1, 2002.
Asefa, M., Cao, M., He, Y., Mekonnen, E., Song, X., and Yang, J.: Ethiopian vegetation types, climate and topography, Plant Diversity, 42, 302311, https://doi.org/10.1016/j.pld.2020.04.004, 2020.
Bendix, J., Aguire, N., Beck, E., Bräuning, A., Brandl, R., Breuer, L., Böhning-Gaese, K., de Paula, M. D., Hickler, T., Homeier, J., Inclan, D., Leuschner, C., Neuschulz, E. L., Schleuning, M., Suarez, J. P., Trachte, K., Wilcke, W., Windhorst, D., and Farwig, N.: A research framework for projecting ecosystem change in highly diverse tropical mountain ecosystems, Oecologia, 195, 589–600, https://doi.org/10.1007/s00442-021-04852-8, 2021.
Benoit, L., Gourdon, A., Vallat, R., Irarrazaval, I., Gravey, M., Lehmann, B., Prasicek, G., Gräff, D., Herman, F., and Mariethoz, G.: A high-resolution image time series of the Gorner Glacier – Swiss Alps – derived from repeated unmanned aerial vehicle surveys, Earth Syst. Sci. Data, 11, 579–588, https://doi.org/10.5194/essd-11-579-2019, 2019.
Berhe, S. M., Desta, B., Nicoletti, M., and Teferra, M.: Geology, geochronology and geodynamic implications of the Cenozoic magmatic province in W and SE Ethiopia, J. Geol. Soc., 144, 213–226, https://doi.org/10.1144/gsjgs.144.2.0213, 1987.
Bühler, Y., Marty, M., and Ginzler, C.: High resolution DEM generation in high-alpine terrain using airborne remote sensing techniques: high resolution DEM generation in high-alpine terrain, T. GIS, 16, 635–647, https://doi.org/10.1111/j.1467-9671.2012.01331.x, 2012.
Carbutt, C.: Nature of alpine ecosystems in tropical mountains of Africa, in: Enc. World's Biomes, Els., 292–299, https://doi.org/10.1016/B978-0-12-409548-9.11753-1, 2020.
Carta, A., Taboada, T., and Müller, J. V.: Diachronic analysis using aerial photographs across fifty years reveals significant land use and vegetation changes on a Mediterranean island, Appl. Geogr., 98, 78–86, https://doi.org/10.1016/j.apgeog.2018.07.010, 2018.
Chignell, S. M., Laituri, M. J., Young, N. E., and Evangelista, P. H.: Afroalpine wetlands of the Bale Mountains, Ethiopia: Distribution, dynamics, and conceptual Flow Model, Ann. Am. Assoc. Geogr., 109, 791–811, https://doi.org/10.1080/24694452.2018.1500439, 2019.
Chowdhuri, I., Pal, S. C., Saha, A., Chakrabortty, R., and Roy, P.: Evaluation of different DEMs for gully erosion susceptibility mapping using in-situ field measurement and validation, Ecol. Inform., 65, 101425, https://doi.org/10.1016/j.ecoinf.2021.101425, 2021.
Clarke, T. A. and Fryer, J. G.: The development of camera calibration methods and models, Photogramm. Rec., 16, 51–66, https://doi.org/10.1111/0031-868X.00113, 1998.
Colwell, R. K., Brehm, G., Cardelús, C. L., Gilman, A. C., and Longino, J. T.: Global Warming, Elevational Range Shifts, and Lowland Biotic Attrition in the Wet Tropics, Science, 322, 258–261, https://doi.org/10.1126/science.1162547, 2008.
da Costa, R. D. and Starkey, J.: PhotoLin: A program to identify and analyze linear structures in aerial photographs, satellite images and maps, Comput. Geosci., 27, 527–534, https://doi.org/10.1016/S0098-3004(00)00146-1, 2001.
Daniotti, B., Gianinetto, M., and Della Torre, S. (Eds.): Digital transformation of the design, construction and management processes of the built environment, Springer Open, Cham, 400 pp., ISBN 978-3-030-33569-4, 2020.
Dashora, A., Lohani, B., and Malik, J. N.: A Repository of Earth Resource Information-CORONA Satellite Programme, Curr. Sci., 92, 926–932, 2007.
Day, D. A., Logsdon, J. M., and Latell, B. (Eds.): Eye in the sky: the story of the Corona spy satellites, Smithsonian Institution Press, Washington, D.C., 303 pp., ISBN 978-1-56098-830-4, 1998.
de Deus Vidal, J., and Clark, V. R.: Afro-alpine plant diversity in the tropical mountains of Africa, in: Enc. World's Biomes, Elsevier, 373–394, https://doi.org/10.1016/B978-0-12-409548-9.11885-8, 2020.
Del Rosario González-Moradas, M., Viveen, W., Andrés Vidal-Villalobos, R., and Carlos Villegas-Lanza, J.: A performance comparison of SRTM v. 3.0, AW3D30, ASTER GDEM3, Copernicus and TanDEM-X for tectonogeomorphic analysis in the South American Andes, Catena, 228, 107160, https://doi.org/10.1016/j.catena.2023.107160, 2023.
Diaz, H. F. and Bradley, R. S.: Temperature Variations During the Last Century at High Elevation Sites, in: Climatic Change at High Elevation Sites, edited by: Diaz, H. F., Beniston, M., and Bradley, R. S., Springer Netherlands, Dordrecht, 21–47, https://doi.org/10.1007/978-94-015-8905-5_2, 1997.
Eltner, A. and Sofia, G.: Structure from motion photogrammetric technique, in: Developments in Earth Surface Processes, Elsevier, 23, 1–24, https://doi.org/10.1016/B978-0-444-64177-9.00001-1, 2020.
Eltner, A., Kaiser, A., Castillo, C., Rock, G., Neugirg, F., and Abellán, A.: Image-based surface reconstruction in geomorphometry – merits, limits and developments, Earth Surf. Dynam., 4, 359–389, https://doi.org/10.5194/esurf-4-359-2016, 2016.
ESRI Inc.: ArcGIS Desktop, Release 10, Environmental Systems Research Institute [software], Redlands, C.A., 2021.
European Space Agency and Airbus: Copernicus DEM, https://doi.org/10.5270/ESA-c5d3d65, 2022.
Farr, T. G., Rosen, P. A., Caro, E., Crippen, R., Duren, R., Hensley, S., Kobrick, M., Paller, M., Rodriguez, E., Roth, L., Seal, D., Shaffer, S., Shimada, J., Umland, J., Werner, M., Oskin, M., Burbank, D., and Alsdorf, D.: The shuttle radar topography mission, Rev. Geophys., 45, RG2004, https://doi.org/10.1029/2005RG000183, 2007.
Frankl, A., Seghers, V., Stal, C., De Maeyer, P., Petrie, G., and Nyssen, J.: Using image-based modelling (SfM–MVS) to produce a 1935 ortho-mosaic of the Ethiopian highlands, Int. J. Digit. Earth, 8, 421–430, https://doi.org/10.1080/17538947.2014.942715, 2015.
Friss, I., Demissew, S., and van Breugel, P.: Atlas of the potential vegetation of Ethiopia, Det Kongelige Danske Videnskabernes Selskab, Copenhagen, Denmark, 307 pp., ISBN 978-87-7304-347-9, 2010.
Gehrke, B. and Linder, H. P.: Species richness, endemism and species composition in the tropical Afroalpine flora, Alpine Bot., 124, 165–177, https://doi.org/10.1007/s00035-014-0132-0, 2014.
Ghuffar, S., Bolch, T., Rupnik, E., and Bhattacharya, A.: A Pipeline for Automated Processing of Declassified Corona KH-4 (1962–1972) Stereo Imagery, IEEE T. Geosci. Remote, 60, 1–14, https://doi.org/10.1109/TGRS.2022.3200151, 2022.
Gil-Romera, G., Adolf, C., Benito, B. M., Bittner, L., Johansson, M. U., Grady, D. A., Lamb, H. F., Lemma, B., Fekadu, M., Glaser, B., Mekonnen, B., Sevilla-Callejo, M., Zech, M., Zech, W., and Miehe, G.: Long-term fire resilience of the Ericaceous Belt, Bale Mountains, Ethiopia, Biol. Lett., 15, 20190357, https://doi.org/10.1098/rsbl.2019.0357, 2019.
Groos, A. R., Niederhauser, J., Wraase, L., Hänsel, F., Nauss, T., Akçar, N., and Veit, H.: The enigma of relict large sorted stone stripes in the tropical Ethiopian Highlands, Earth Surf. Dynam., 9, 145–166, https://doi.org/10.5194/esurf-9-145-2021, 2021.
Groos, A. R., Niederhauser, J., Lemma, B., Fekadu, M., Zech, W., Hänsel, F., Wraase, L., Akçar, N., and Veit, H.: An hourly ground temperature dataset for 16 high-elevation sites (3493–4377 m a.s.l.) in the Bale Mountains, Ethiopia (2017–2020), Earth Syst. Sci. Data, 14, 1043–1062, https://doi.org/10.5194/essd-14-1043-2022, 2022.
Grottoli, E., Biausque, M., Rogers, D., Jackson, D. W. T., and Cooper, J. A. G.: Structure-from-motion-derived digital surface models from historical aerial photographs: A New 3D Application for Coastal Dune Monitoring, Remote Sens., 13, 95, https://doi.org/10.3390/rs13010095, 2020.
Hawker, L., Neal, J., and Bates, P.: Accuracy assessment of the TanDEM-X 90 Digital Elevation Model for selected floodplain sites, Remote Sens. Environ., 232, 111319, https://doi.org/10.1016/j.rse.2019.111319, 2019.
He, G., Zhao, X., and Yu, M.: Exploring the multiple disturbances of karst landscape in Guilin World Heritage Site, China, Catena, 203, 105349, https://doi.org/10.1016/j.catena.2021.105349, 2021.
Hillman, J. C.: The Bale Mountains national park area, Southeast Ethiopia, and its management, Mt. Res. Dev., 8, 253, https://doi.org/10.2307/3673456, 1988.
Huggel, C., Clague, J. J., and Korup, O.: Is climate change responsible for changing landslide activity in high mountains?: Climate change and landslides in high mountains, Earth Surf. Proc. Land., 37, 77–91, https://doi.org/10.1002/esp.2223, 2012.
Iglhaut, J., Cabo, C., Puliti, S., Piermattei, L., O'Connor, J., and Rosette, J.: Structure from Motion Photogrammetry in Forestry: a Review, Curr. Forestry Rep., 5, 155–168, https://doi.org/10.1007/s40725-019-00094-3, 2019.
Immerzeel, W. W., Kraaijenbrink, P. D. A., Shea, J. M., Shrestha, A. B., Pellicciotti, F., Bierkens, M. F. P., and de Jong, S. M.: High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles, Remote Sens. Environ., 150, 93–103, https://doi.org/10.1016/j.rse.2014.04.025, 2014.
Jacob, M., Romeyns, L., Frankl, A., Asfaha, T., Beeckman, H., and Nyssen, J.: Land use and cover dynamics since 1964 in the Afro-alpine vegetation belt: Lib Amba Mountain in North Ethiopia, Land Degrad. Dev., 27, 641–653, https://doi.org/10.1002/ldr.2396, 2016.
Jacob, M., De Ridder, M., Vandenabeele, M., Asfaha, T., Nyssen, J., and Beeckman, H.: The Response of Erica arborea L. Tree Growth to Climate Variability at the Afro-alpine Tropical Highlands of North Ethiopia, Forests, 11, 310, https://doi.org/10.3390/f11030310, 2020.
Jalal, S. J., Musa, T. A., Ameen, T. H., Din, A. H. M., Aris, W. A. W., and Ebrahim, J. M.: Optimizing the Global Digital Elevation Models (GDEMs) and accuracy of derived DEMs from GPS points for Iraq's mountainous areas, Geodesy and Geodynamics, 11, 338–349, https://doi.org/10.1016/j.geog.2020.06.004, 2020.
Johansson, M. U., Senay, S. D., Creathorn, E., Kassa, H., and Hylander, K.: Change in heathland fire sizes inside vs. outside the Bale Mountains National Park, Ethiopia, over 50 years of fire-exclusion policy: lessons for REDD+, Ecol. Soc., 24, 26, https://doi.org/10.5751/ES-11260-240426, 2019.
Kidane, Y., Stahlmann, R., and Beierkuhnlein, C.: Vegetation dynamics, and land use and land cover change in the Bale Mountains, Ethiopia, Environ. Monit. Assess., 184, 7473–7489, https://doi.org/10.1007/s10661-011-2514-8, 2012.
Kidane, Y. O., Hoffmann, S., Jaeschke, A., Beloiu, M., and Beierkuhnlein, C.: Ericaceous vegetation of the Bale Mountains of Ethiopia will prevail in the face of climate change, Sci. Rep., 12, 1858, https://doi.org/10.1038/s41598-022-05846-z, 2022.
Lindeberg, T.: Feature Detection with Automatic Scale Selection, Int. J. Comput. Vision, 30, 79–116, https://doi.org/10.1023/A:1008045108935, 1998.
Lowe, D. G.: Object recognition from local scale-invariant features, in: Proceedings of the Seventh IEEE International Conference on Computer Vision, Kerkyra, Greece, vol. 2, 1150–1157, https://doi.org/10.1109/ICCV.1999.790410, 1999.
Lowe, D. G.: Distinctive Image Features from Scale-Invariant Keypoints, Int. J. Comput. Vision, 60, 91–110, https://doi.org/10.1023/B:VISI.0000029664.99615.94, 2004.
Lu, L., Zhou, Y., and Walker, R. T.: Using historical aerial photographs to measure earthquake deformation: Testing the effects of scan resolution, Remote Sens. Environ., 252, 112118, https://doi.org/10.1016/j.rse.2020.112118, 2021.
Mekonnen, B., Glaser, B., Zech, M., Bromm, T., Nemmomisa, S., Bekele, T., and Zech, W.: Factors determining the distribution of Erica patches on the Sanetti Plateau, Bale Mountains, Ethiopia, Alp Botany, 133, 135147, https://doi.org/10.1007/s00035-023-00295-4, 2023.
Merckx, V. S. F. T., Hendriks, K. P., Beentjes, K. K., Mennes, C. B., Becking, L. E., Peijnenburg, K. T. C. A., Afendy, A., Arumugam, N., de Boer, H., Biun, A., Buang, M. M., Chen, P.-P., Chung, A. Y. C., Dow, R., Feijen, F. A. A., Feijen, H., Soest, C. F., Geml, J., Geurts, R., Gravendeel, B., Hovenkamp, P., Imbun, P., Ipor, I., Janssens, S. B., Jocqué, M., Kappes, H., Khoo, E., Koomen, P., Lens, F., Majapun, R. J., Morgado, L. N., Neupane, S., Nieser, N., Pereira, J. T., Rahman, H., Sabran, S., Sawang, A., Schwallier, R. M., Shim, P.-S., Smit, H., Sol, N., Spait, M., Stech, M., Stokvis, F., Sugau, J. B., Sulei-man, M., Sumail, S., Thomas, D. C., van Tol, J., Tuh, F. Y. Y., Yahya, B. E., Nais, J., Repin, R., Lakim, M., and Schilthuizen, M.: Evolution of endemism on a young tropical mountain, Nature, 524, 347–350, https://doi.org/10.1038/nature14949, 2015.
Mezgebu, A. and Workineh, G.: Changes and drivers of afro-alpine forest ecosystem: future trajectories and management strategies in Bale eco-region, Ethiopia, Ecol. Process, 6, 1–13, https://doi.org/10.1186/s13717-017-0108-2, 2017.
Miehe, S. and Miehe, G.: Ericaceous Forests and Heathlands in the Bale Mountains of South Ethiopia Ecology and Man's Impact, Traute Warnke Verlag, Reinbek, Hamburg, Germany, 161 pp., ISBN 3-9801591-4-0, 1994.
Muhammed, A. and Elias, E.: The effects of landscape change on plant diversity and structure in the Bale Mountains National Park, Southeastern Ethiopia, Int. J. Ecol., 2021, 1–13, https://doi.org/10.1155/2021/6628282, 2021.
Muhammed, M. A., Hailu, B. T., Miehe, G., Nauss, T., and Zeuss, D.: High-resolution digital elevation models and orthomosaics generated from historical aerial photographs (since the 1960s) of the Bale Mountains in Ethiopia, Zenodo [data set], https://doi.org/10.5281/zenodo.7271617, 2022a.
Muhammed, M. A., Hailu, B. T., Miehe, G., Nauss, T., and Zeuss, D.: High-resolution digital elevation models and orthomosaics generated from historical aerial photographs (since the 1960s) of the Bale Mountains in Ethiopia, Zenodo [data set], https://doi.org/10.5281/zenodo.7269999, 2022b.
Nyssen, J., Frankl, A., Haile, M., Hurni, H., Descheemaeker, K., Crummey, D., Ritler, A., Portner, B., Nievergelt, B., Moeyersons, J., Munro, N., Deckers, J., Billi, P., and Poesen, J.: Environmental conditions and human drivers for changes to north Ethiopian mountain landscapes over 145 years, Sci. Total Environ., 485–486, 164–179, https://doi.org/10.1016/j.scitotenv.2014.03.052, 2014.
Nyssen, J., Debever, M., Gebremeskel, G., De Wit, B., Hadgu, K. M., De Vriese, S., Verbeurgt, J., Frankl, A., Besha, T., Kropáček, J., Forceville, A., and Demissie, B.: Online digital archive of aerial photographs (1935–1941) of Ethiopia, Geosci. Data J., 9, 3–36, https://doi.org/10.1002/gdj3.115, 2022.
Palomo, I.: Climate Change Impacts on Ecosystem Services in High Mountain Areas: A Literature Review, Mt. Res. Dev., 37, 179–187, https://doi.org/10.1659/MRD-JOURNAL-D-16-00110.1, 2017.
Peters, M. K., Hemp, A., Appelhans, T., Becker, J. N., Behler, C., Classen, A., Detsch, F., Ensslin, A., Ferger, S. W., Frederiksen, S. B., Gebert, F., Gerschlauer, F., Gütlein, A., Helbig-Bonitz, M., Hemp, C., Kindeketa, W. J., Kühnel, A., Mayr, A. V., Mwangomo, E., Ngereza, C., Njovu, H. K., Otte, I., Pabst, H., Renner, M., Röder, J., Rutten, G., Schellenberger Costa, D., Sierra-Cornejo, N., Vollstädt, M. G. R., Dulle, H. I., Eardley, C. D., Howell, K. M., Keller, A., Peters, R. S., Ssymank, A., Kakengi, V., Zhang, J., Bogner, C., Böhning-Gaese, K., Brandl, R., Hertel, D., Huwe, B., Kiese, R., Kleyer, M., Kuzyakov, Y., Nauss, T., Schleuning, M., Tschapka, M., Fischer, M., and Steffan-Dewenter, I.: Climate–land-use interactions shape tropical mountain biodiversity and ecosystem functions, Nature, 568, 88–92, https://doi.org/10.1038/s41586-019-1048-z, 2019.
Rahbek, C., Borregaard, M. K., Colwell, R. K., Dalsgaard, B., Holt, B. G., Morueta-Holme, N., Nogues-Bravo, D., Whittaker, R. J., and Fjeldså, J.: Humboldt's enigma: What causes global patterns of mountain biodiversity?, Science, 365, 1108–1113, https://doi.org/10.1126/science.aax0149, 2019.
Reber, D., Fekadu, M., Detsch, F., Vogelsang, R., Bekele, T., Nauss, T., and Miehe, G.: High-Altitude Rock Shelters and Settlements in an African Alpine Ecosystem: The Bale Mountains National Park, Ethiopia, Hum. Ecol., 46, 587–600, https://doi.org/10.1007/s10745-018-9999-5, 2018.
Risbøl, O., Briese, C., Doneus, M., and Nesbakken, A.: Monitoring cultural heritage by comparing DEMs derived from historical aerial photographs and airborne laser scanning, J. Cult. Herit., 16, 202–209, https://doi.org/10.1016/j.culher.2014.04.002, 2015.
Rizzoli, P., Martone, M., Gonzalez, C., Wecklich, C., Borla Tridon, D., Bräutigam, B., Bachmann, M., Schulze, D., Fritz, T., Huber, M., Wessel, B., Krieger, G., Zink, M., and Moreira, A.: Generation and performance assessment of the global TanDEM-X digital elevation model, ISPRS J. Photogramm., 132, 119–139, https://doi.org/10.1016/j.isprsjprs.2017.08.008, 2017.
Schenk, T.: Towards automatic aerial triangulation, ISPRS J. of Photogramm., 52, 110–121, https://doi.org/10.1016/S0924-2716(97)00007-5, 1997.
Sena, N. C., Veloso, G. V., Fernandes-Filho, E. I., Francelino, M. R., and Schaefer, C. E. G. R.: Analysis of terrain attributes in different spatial resolutions for digital soil mapping application in south eastern Brazil, Geoderma. Reg., 21, e00268, https://doi.org/10.1016/j.geodrs.2020.e00268, 2020.
Sevara, C., Verhoeven, G., Doneus, M., and Draganits, E.: Surfaces from the Visual Past: Recovering High-Resolution Terrain Data from Historic Aerial Imagery for Multitemporal Landscape Analysis, J. Archaeol. Method. Theory, 25, 611642, https://doi.org/10.1007/s10816-017-9348-9, 2018.
Shebl, A. and Csámer, Á.: Reappraisal of DEMs, Radar and optical datasets in lineaments extraction with emphasis on the spatial context, Remote Sens. Appl., 24, 100617, https://doi.org/10.1016/j.rsase.2021.100617, 2021.
Slaymaker, O. and Embleton-Hamann, C.: Advances in global mountain geomorphology, Geomorphology, 308, 230–264, https://doi.org/10.1016/j.geomorph.2018.02.016, 2018.
Snavely, N., Seitz, S. M., and Szeliski, R.: Modeling the World from Internet Photo Collections, Int. J. Comput. Vis., 80, 189210, https://doi.org/10.1007/s11263-007-0107-3, 2008.
Spaete, L. P., Glenn, N. F., Derryberry, D. R., Sankey, T. T., Mitchell, J. J., and Hardegree, S. P.: Vegetation and slope effects on accuracy of a LiDAR-derived DEM in the sagebrush steppe, Remote Sens. Lett., 2, 317–326, https://doi.org/10.1080/01431161.2010.515267, 2011.
Spriggs, R. M.: The Calibration of Military Cartography Cameras, Technical Note 66-2, AFLC-WPAFB-MAR 66 500, US Army Engineer Geodesy, Intelligence and Mapping R. & D. Agency Division, Wright-Patterson Air Force Base, Ohio, USA, 1966.
Thomas, J., Joseph, S., Thrivikramji, K. P., and Arunkumar, K. S.: Sensitivity of digital elevation models: The scenario from two tropical mountain river basins of the Western Ghats, India, Geosci. Front., 5, 893–909, https://doi.org/10.1016/j.gsf.2013.12.008, 2014.
Thornton, J. M., Snethlage, M. A., Sayre, R., Urbach, D. R., Viviroli, D., Ehrlich, D., Muccione, V., Wester, P., Insarov, G., and Adler, C.: Human populations in the world's mountains: Spatio-temporal patterns and potential controls, PLoS ONE, 17, e0271466, https://doi.org/10.1371/journal.pone.0271466, 2022.
Tomczyk, A. M. and Ewertowski, M. W.: Baseline data for monitoring geomorphological effects of glacier lake outburst flood: a very-high-resolution image and GIS datasets of the distal part of the Zackenberg River, northeast Greenland, Earth Syst. Sci. Data, 13, 5293–5309, https://doi.org/10.5194/essd-13-5293-2021, 2021.
Triggs, B., Zisserman, A., and Szeliski, R. (Eds.): Vision algorithms: theory and practice: International Workshop on Vision Algorithms, Corfu, Greece, 21–22 September 1999, proceedings, Springer, Berlin, New York, 382 pp., ISBN 978-3-540-67973-8, 2000.
Turner, M. G. and Gardner, R. H.: Landscape Dynamics in a Rapidly Changing World, in: Landscape Ecology in Theory and Practice, Springer New York, New York, NY, 333–381, https://doi.org/10.1007/978-1-4939-2794-4_9, 2015.
Turner, W., Rondinini, C., Pettorelli, N., Mora, B., Leidner, A. K., Szantoi, Z., Buchanan, G., Dech, S., Dwyer, J., Herold, M., Koh, L. P., Leimgruber, P., Taubenboeck, H., Wegmann, M., Wikelski, M., and Woodcock, C.: Free and open-access satellite data are key to biodiversity conservation, Biol. Conserv., 182, 173–176, https://doi.org/10.1016/j.biocon.2014.11.048, 2015.
van Westen, C. J. and Lulie Getahun, F.: Analyzing the evolution of the Tessina landslide using aerial photographs and digital elevation models, Geomorphology, 54, 77–89, https://doi.org/10.1016/S0169-555X(03)00057-6, 2003.
Westoby, M. J., Brasington, J., Glasser, N. F., Hambrey, M. J., and Reynolds, J. M.: “Structure-from-Motion” photogrammetry: A low-cost, effective tool for geoscience applications, Geomorphology, 179, 300–314, https://doi.org/10.1016/j.geomorph.2012.08.021, 2012.
Williams, P. W.: Glaciations and Climate Change, in: New Zealand Landscape, Els, 301–335, https://doi.org/10.1016/B978-0-12-812493-2.00007-4, 2017.
Woldu, Z., Feoli, E., and Nigatu, L.: Partitioning an elevation gradient of vegetation from south eastern Ethiopia by probabilistic methods, Vegetation, 81, 189–198, https://doi.org/10.1007/BF00045524, 1989.
Wraase, L., Reuber, V. M., Kurth, P., Fekadu, M., Demissew, S., Miehe, G., Opgenoorth, L., Selig, U., Woldu, Z., Zeuss, D., Schabo, D. G., Farwig, N., and Nauss, T.: Remote sensing‐supported mapping of the activity of a subterranean landscape engineer across an afro‐alpine ecosystem, Remote Sens. Ecol. Conserv., 9, 195209, https://doi.org/10.1002/rse2.303, 2023.
Wu, Y., Tang, F., and Li, H.: Image-based camera localization: an overview, Vis. Comput. Ind. Biomed. Art, 1, 8, https://doi.org/10.1186/s42492-018-0008-z, 2018.
Short summary
We processed the only available and oldest historical aerial photographs for the Bale Mountains, Ethiopia. We used structure-from-motion multi-view stereo photogrammetry to generate the first high-resolution DEMs and orthomosaics for 1967 and 1984 at larger spatial extents (5730 km2) and at high spatial resolutions (0.84 m and 0.98 m, respectively). Our datasets will help the scientific community address questions related to the Bale Mountains and afro-alpine ecosystems.
We processed the only available and oldest historical aerial photographs for the Bale Mountains,...
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