Blar i Institutt for bygg- og miljøteknikk på tidsskrift "Kart og Plan"
Viser treff 1-9 av 9
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Accuracy investigation of UAV Photomapping
(Peer reviewed; Journal article, 2017)Drone systems are high-technology products which can also be used for mapping. Drone mapping has recently become very popular for producing orthophoto maps, terrain models and 3D-data over small areas. A test area located ... -
Bruk av maskinlæring for å gjenkjenne bygninger i flybilder
(Journal article; Peer reviewed, 2018)This paper explores how machine learning can be used to recognize buildings in aerial images (orthophotos). The Norwegian map data: Joint Map Database (Felles kartbase) is used as «the true value» for training neural ... -
Detection of Gross Errors in Wellbore Directional Surveying for Petroleum Production with emphasis on Reliability Analyses
(Peer reviewed; Journal article, 2005)This paper presents a method for the detection of gross errors in wellbore directional survey data. The method is general, and is applicable for both magnetic and gyroscopic surveys. However, this study will only examine ... -
Geoid-type surface determination using a gravimetric quasigeoid model and GNSS/leveling data- A case study in eastern Norway
(Peer reviewed; Journal article, 2013)Norway is about to realize a new vertical datum NN2000, which is supposed to replace the present datum NN1954. Norwegian Mapping Authority (NMA) is also realizing a new geodetic reference frame ITRF09, with focus mainly ... -
Greenland ice-melt spread into Northwest Coast revealed by GRACE (GRACE data viser at issmeltingen på Grønland sprer seg til nordvestkysten)
(Peer reviewed; Journal article, 2012)We examine the extent and magnitude of Greenland ice sheet surface melting between 2002 and 2010. We show that the well documented Greenland ice mass loss in the southern region spread to northwest Greenland in the period ... -
Innovasjon innen Sentre for forskningsdrevet innovasjon – en metaanalyse av erfaringer fra Klima 2050
(Journal article; Peer reviewed, 2022)The Research Council of Norway’s Centres for Research-based Innovation (SFI) have been established to develop expertise for innovation and value creation. There has been a discussion about how the centres have actually ... -
The Quest for a Precise Geoidal Height Model
(Peer reviewed; Journal article, 2004)The geoid is defined as an equipotential surface of the Earth�s actual gravity field inside the topographical masses on land (in most cases) and more or less coinciding with mean sea level at sea. Over the last decade, ... -
Sammenligning av geoidens høyde utledet fra geopotensialmodellen EGM2008 med GPS/nivellementsdata i et testområde i Iran (Comparison of geoid heights from the EGM2008 geopotential model and GPS/levelling data in a study area in Iran)
(Peer reviewed; Journal article, 2012)The global Earth Gravity Model EGM2008 is evaluated locally using Global Positioning System (GPS)/levelling data in a test area in Iran. The non-tidal release of the EGM2008 is used in the computations. An indirect approach ... -
The Open Geospatial Data Ecosystem
(Journal article; Peer reviewed, 2017)Open Governmental Data, Linked Open Data, Open Government, Volunteered Geographic Information, Participatory GIS, and Free and Open Source Software are all parts of The Open Geospatial Data Ecosystem. How do these data ...