The paper presents the concept of digital geomorphology, situated on the boundary between geomorphology and geomatics. The digital geomorphology is characterized by: utilization of digital terrain data, use of modern measurement technologies
in the fieldwork, utilization of the main GIS functions in the analysis of geographical data and geostatistical methods in the construction of the digital geomorphological model (DGM). The digital geomorphology opens new investigative research fields, which
Digital exclusion despite digital accessibility : empirical evidence from an English city
Digital divide ; England ; Household ; Information ; Internet ; Social geography ; Socio-economic indicators ; United Kingdom
This article analyses digital exclusion despite digital accessibility through the example of Portsmouth. In this study, this concept refers to those individuals who do not use the internet either at home, work, place of study or elsewhere
. It identifies the significant factors raising or depressing the probability of being categorised as digitally excluded including, gender, income, education, dis-ability, tenure, working status, the presence of young people in the household and city neighbourhood
Automated mapping ; Coastal environment ; Computing ; Digitization ; England ; Geographical information system ; Geomorphological mapping ; Norfolk ; Photogrammetry ; Salt marsh ; Software ; United Kingdom
This paper presents an up-to-date digital map of a classic British coastal landform, Blakeney Point in north Norfolk, and argues for the wider use of readily available, PC-based graphics software in geomorphological cartography.
Erfassung und Nutzung digitaler Standortdaten im Informationssystem Boden. (Registration and utilization of digital data in the information system land)
Besides analogue, digital registration of land use data in the frame of the information system land gains an increasing importance. The digital registration of mapping units enable user-suitable processing. (HL).
Cartography ; Digital archive ; Digital mapping ; Germany ; Historical mapping ; Internet ; Saxony
The article deals with the terms map digitization/scanning, the digital map collection, the internet presentation and the map use. 2006, the Saxonian capital Dresden realised a web presentation of selected maps and historical vedutes stored
in the Saxonian State- and Univer-sity Library. This digital collection is called today “Kartenforum Sachsen”, an internet portal of the Saxonian Libraries and Archives. - (IfL)
The production of digital elevation models for experimental model landscapes
Comparative study ; Digital elevation model ; Experimentation ; Geomorphology ; Model ; Photogrammetry ; Rainfall simulation ; Soil erosion ; Watershed
Automated digital photogrammetry was used to produce digital elevation models of experimental model landscapes under controlled laboratory conditions as part of a series of rainfall erosion experiments looking at the evolution of landforms
in response to erosion. The method allowed the elevations of the experimental landscapes to be studied in great detail on a regular grid digital terrain map. Digital photogrammetry produced elevation data at a resolution of 6 mm with a standard deviation
Monitoring river-channel change using terrestrial oblique digital imagery and automated digital photogrammetry
Alberta ; Braided channel ; Canada ; Channel geometry ; Digital elevation model ; Fluvial dynamics ; Photogrammetry ; Rocky Mountains ; Roughness ; Sediment transport ; Stream ; Stream flow
Imagery acquired using a high-resolution digital camera and ground survey has been used to monitor changes in bed topography and plan form, and to obtain synoptic water-surface and flow-depth information in the braided, gravel-bed Sunwapta River
in the Canadian Rockies. Digital images were obtained during daily low flows during the summer meltwater season to maximize the exposed bed area and to map the water surface on the days with the highest flows. The good results allow the AA. to identify other
Cartography ; Coastal environment ; Coastal geomorphology ; Digitization ; England ; Geographical information system ; Hampshire ; Photogrammetry ; Sediment transport ; United Kingdom
The aim of this first exercise was to produce a non-commercial map and make it widely available in a digital rather than a graphic format. The second purpose is to demonstrate that conventional surveying techniques and readily available graphics
software on a PC or Mackintosh will provide an entry into digital mapping for geomorphological applications. Comments are included on how the digital map may be utiized.
A digital map on the internet : Dawlish Warren, Devon
This third paper in a short series presents an up-to-date digital map of a classic British coastal landform, Dawlish Warren in Devon, applying the same PC-based mapping techniques as the two previous maps, but making the final document available
A digital measurement device is described, which provides accurate and repeatable measurements of surface roughness and can be linked to a small, light and portable recorder and processor. Such an arrangement allows rapid, accurate data recording
Suchi chikei moderu no tokeiteki bunseki ni yoru Shikoku jima no chikei tokusei (Caractéristiques du relief dans Shikoku d'après l'analyse statistique selon Digital Terrain Model )
L'analyse statistique à l'aide de Digital Terrain Model permet l'expression quantitative du relief de Shikoku. - (SGA)
The digital elevation model of Italy for geomorphology and structural geology
Three different methods for calculating from a Digital Elevation Model (DEM) slope and aspect are discussed : the Four Contiguous Right Triangles, the Maximum Downward Gradient and the Bicubic Spline First Derivative; the resulting maps have been
compared with each other at regional scale and for a small area with a slope map obtained by using classical techniques. The main goal of the comparison has been the choice of the best technique for the computation of the digital slope map of Italy.