Yıl 2018, Cilt 3, Sayı 3, Sayfalar 98 - 107 2018-10-01


Altan Yılmaz [1] , Mustafa Erdoğan [2]

62 87

Terrain surface elevations are the most commonly used geographic information. These data are distributed in the form of Digital Elevation Model (DEM) and their derivatives are used for orthophoto production, 3D city models, hydrological modeling, visibility, flood, flood analysis and so on.

Although DEM can be found in many different forms, it often consists of a large number of records, each of which represents the elevation of a point in space. It is necessary to know that DEM is the result of a series of modeling and processing steps. DEM can be obtained from sources such as aerial and space radar data (artificially sparse) and laser scanning (LIDAR), with automatic correlation from aerial photos and satellite images, field measurements, contours, vector data.

The densest grid spacing DEM covering the entire country is the DTED2 data produced by the General Command of Mapping with a grid spacing of 1 second (approximately 30 m). DTED2 data was produced by using the contours, elevation points, lakes and sea areas in the existing 1: 25,000 scale topographic maps in the standards specified by NATO STANAG MIL-PDF-89020B. The root mean square error of DTED2 data is shown as ± 9 m at 90% confidence level in a test conducted in 2007.

Denser and more accurate DEM is produced by several institutions in only required areas but not covering whole country. Governmental institutions need denser, more accurate, homogeneous and countrywide DEM in order to use in orthophoto production, 3D modelling, visibility analysis and etc. This study is conducted to meet DEM demands with optimum accuracy and density by stereo aerial photos. DEM is produced in three different areas representing the general topographic structure of Turkey by using 45 cm ground sampling distance stereo aerial photos. The RMSE of the heights of three areas are respectively ± 2.51 m, ± 1.38 m and ± 1.30 m. The proposed grid spacing by INSPIRE with these accuracies is 3-30 m in flat terrain and 3-15 m in mountainous terrain.

It is concluded that 5 m grid spacing will be suitable for a countrywide DEM with these accuracies. It is also proposed that production format of DEM should be 32 Bit Floating GeoTiff.

Digital Elevation Model, aerial photos, automatic image matching, countrywide DEM
  • Bundesamt für Kartographie und Geodäsie (BKG), 2012, Digital Terrain Models for Germany, http://www.bkg.bund.de/nn_171776/EN/FederalOffice/Products/Geo-Data/Digital-Terrain-Models/DGM-Germany/DGMGermany__node.html__nnn=true (Accessed on 15 June 2012).
  • Canada Centre for Topographic Information, 2007, Canadian Digital Elevation Data, Level 1 Product Specifications Edition 3.0, 01 June 2007, http://www.geobase.ca/doc/specs/pdf/GeoBase_product_specs_CDED1_3_0.pdf, (Accessed on 29 June 2012).
  • DGIWG, 2013, 116-1 Elevation Surface Model Standardized Profile, http://www.dgiwg.or (Accessed on 08 April 2013).
  • Federal Geographic Data Committee, 2008, Geographic Information Framework Data Content Standard, Part 3: Elevation, May 2008, ttp://www.fgdc.gov/standards/projects/FGDC-standards-projects/framework-data-standard/GI_FrameworkDataStandard_Part3_Elevation.pdf (Accessed on 15 June 2012).
  • Fisher, P.F. and Tate, N.J., 2006, Causes and consequences of error in digital elevation models. Progress in Physical Geography 30, 4 (2006) pp. 467–489.
  • Gesch, D.B., Oimoen, M., Greenlee, S.K., Nelson, C.A., Steuck, M., and Tyler, D., 2002, The National Elevation Dataset: Photogrammetric Engineering & Remote Sensing, v. 68, no. 1, p. 5–11.
  • Gesch, D., J. Oimoen, M., and A. Evans, G. 2014. Accuracy Assessment of the U.S. Geological Survey National Elevation Dataset, and Comparison with Other Large-Area Elevation Datasets—SRTM and ASTER: U.S. Geological Survey Open-File Report 2014–1008, 10 p., https://dx.doi.org/10.3133/ofr20141008
  • Geoscience Australia, 2011, National Elevation Data Audit 2011, National Elevation Data Framework (NEDF): The Shared Digital Representation of Australia’s Landform and Seabed, http://www.ga.gov.au/image_cache/GA20006.pdf, (Accessed on 02 Temmuz 2012).
  • Haala, N. and Rothermel, M., 2012. Dense Multi-Stereo Matching for High Quality Digital Elevation Models, Photogrammetrie - Fernerkundung - Geoinformation, Volume 2012, Number 4, August 2012, pp. 331-343(13).
  • Hirschmüller, H., 2011. Semi-Global Matching- Motivation, Developments and Applications. In: Photogrammetric Week 11, pp. 173-184. Wichmann. Photogrammetric Week, 9-13 Sept 2011, Stuttgart, Germany.
  • Höhle, J., 2009, DEM Generation Using a Digital Large Format Frame Camera. Photogrammetric Engineering & Remote Sensing Vol. 75, No.1, January 2009, pp. 87–93.
  • Hovenbitzer, M., 2004, The Digital Elevation Model 1:25.000 (DEM25) for the Federal Republic of Germany, XXth ISPRS Congress Procedings, Commission 4, İstanbul, pp.1240-1243.
  • INSPIRE, 2012, D2.8.II.1 Data Specification on Elevation–Technical Guidelines, http://inspire.ec.europa.eu/documents/Data_Specifications/INSPIRE_DataSpecification_EL_v3.0.pdf, (Accessed on 24 January 2018).
  • Pulighe, G., and Fava, F., 2013, DEM extraction from archive aerial photos: accuracy assessment in areas of complex topography, European Journal of Remote Sensing, 46:1, 363-378, DOI: 10.5721/EuJRS20134621
  • U.S. Geological Survey (USGS), 2012, National Elevation Dataset, ftp://edcsgs9.cr.usgs.gov/data/topo/NED_History/DEM_Manual_2ndEd_Chap4_NED.pdf, (Accessed on 15 June 2012).
Birincil Dil en
Konular Mühendislik (Genel)
Dergi Bölümü Articles

Orcid: 0000-0002-1926-0633
Yazar: Altan Yılmaz (Sorumlu Yazar)
Ülke: Turkey

Orcid: 0000-0003-3219-5546
Yazar: Mustafa Erdoğan
Ülke: Turkey

Bibtex @araştırma makalesi { ijeg384822, journal = {International Journal of Engineering and Geosciences}, issn = {}, eissn = {2548-0960}, address = {Murat YAKAR}, year = {2018}, volume = {3}, pages = {98 - 107}, doi = {10.26833/ijeg.384822}, title = {DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY}, key = {cite}, author = {Erdoğan, Mustafa and Yılmaz, Altan} }
APA Yılmaz, A , Erdoğan, M . (2018). DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY. International Journal of Engineering and Geosciences, 3 (3), 98-107. DOI: 10.26833/ijeg.384822
MLA Yılmaz, A , Erdoğan, M . "DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY". International Journal of Engineering and Geosciences 3 (2018): 98-107 <http://dergipark.gov.tr/ijeg/issue/37203/384822>
Chicago Yılmaz, A , Erdoğan, M . "DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY". International Journal of Engineering and Geosciences 3 (2018): 98-107
RIS TY - JOUR T1 - DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY AU - Altan Yılmaz , Mustafa Erdoğan Y1 - 2018 PY - 2018 N1 - doi: 10.26833/ijeg.384822 DO - 10.26833/ijeg.384822 T2 - International Journal of Engineering and Geosciences JF - Journal JO - JOR SP - 98 EP - 107 VL - 3 IS - 3 SN - -2548-0960 M3 - doi: 10.26833/ijeg.384822 UR - http://dx.doi.org/10.26833/ijeg.384822 Y2 - 2018 ER -
EndNote %0 International Journal of Engineering and Geosciences DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY %A Altan Yılmaz , Mustafa Erdoğan %T DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY %D 2018 %J International Journal of Engineering and Geosciences %P -2548-0960 %V 3 %N 3 %R doi: 10.26833/ijeg.384822 %U 10.26833/ijeg.384822
ISNAD Yılmaz, Altan , Erdoğan, Mustafa . "DESIGNING HIGH RESOLUTION COUNTRYWIDE DEM FOR TURKEY". International Journal of Engineering and Geosciences 3 / 3 (Ekim 2018): 98-107. http://dx.doi.org/10.26833/ijeg.384822