Blar i Institutt for bygg- og miljøteknikk på emneord "VDP::Technology: 500"
Viser treff 1-17 av 17
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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 ... -
Blockage Correction and Reynolds Number Dependency of an Alpine Skier: A Comparison Between Two Closed-Section Wind Tunnels.
(Peer reviewed; Journal article, 2020)The purpose of this study was to investigate the impact of blockage effect and Reynolds Number dependency by comparing measurements of an alpine skier in standardized positions between two wind tunnels with varying blockage ... -
Correlation Analysis of Multipath Effects in GPS-Code and Carrier Phase Observations
(Peer reviewed; Journal article, 2010)Multipath error is a limiting factor for successful ambiguity resolution in precise real-time kinematic GPS positioning, both in the carrier phase and pseudorange measurements. Understanding the temporal characteristics ... -
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 ... -
GRACE-derived ice-mass loss spread over Greenland
(Peer reviewed; Journal article, 2015)The Gravity Recovery and Climate Experiment (GRACE) monthly satellite data is used to examine the extent and magnitude of Greenland ice sheet melting for 2003-2012. We show that the well documented Greenland ice mass loss ... -
Homogenizing GPS Integrated Water Vapor Time Series: Benchmarking Break Detection Methods on Synthetic Data Sets
(Peer reviewed; Journal article, 2020)We assess the performance of different break detection methods on three sets of benchmark data sets, each consisting of 120 daily time series of integrated water vapor differences. These differences are generated from the ... -
Influence of Gravel-Bed Porosity and Grain Orientation on Bulk Flow Resistance
(Journal article; Peer reviewed, 2018)This paper presents results from experiments that were carried out to study the effect of porosity and grain orientation on flow resistance. Experiments were performed over three rough surfaces; a water-worked gravel-bed, ... -
Influence of large-scale asperities on the stability of concrete dams
(Chapter, 2022)For concrete dams founded on rock, there are only a few options in the common analysis methods to account for large‐scale asperities. However, previous research alludes that they have a significant impact on the behaviour ... -
Investigation of Free Surface Turbulence Damping in RANS Simulations for Complex Free Surface Flows
(Journal article; Peer reviewed, 2019)The modelling of complex free surface flows over weirs and in the vicinity of bridge piers is presented in a numerical model emulating open channel flow based on the Reynolds Averaged Navier-Stokes (RANS) equations. The ... -
Masonry’s Resistance to Driving Rain: Mortar Water Content and Impregnation
(Journal article; Peer reviewed, 2017)Alongside well-researched themes such as water and moisture, the service life and function of masonry veneers are often compromised by precipitation combined with poor design considerations, execution, and selection of ... -
Mass loss of the Greenland ice sheet from GRACE time-variable gravity measurements
(Peer reviewed; Journal article, 2012)The Gravity Recovery and Climate Experiment (GRACE) satellite data is used to estimate the rate of ice mass variability over Greenland. To do this, monthly GRACE level 2 Release-04 (RL04) data from three different processing ... -
Multi-sensor InSAR analysis of surface displacement over coastal urban city of Trondheim
(Peer reviewed; Journal article, 2016)In this study, we present maps of ground surface displacement of the coastal urban city of Trondheim in central Norway using observations from interferometry synthetic aperture radar (InSAR). We used 98 SAR images including ... -
Persistent Scatterer Analysis Using Dual-Polarization Sentinel-1 Data: Contribution From VH Channel
(Journal article; Peer reviewed, 2018)The regular acquisition and relatively short revisit time of Sentinel-1 satellite improve the capability of a persistent scatterer interferometric synthetic aperture radar (PS-InSAR) as a suitable geodetic method of choice ... -
Photovoltaics on Landmark Buildings with Distinctive Geometries
(Peer reviewed; Journal article, 2020)This review study, framed in the Work group 4 “Photovoltaic in built environment” within the COST Action PEARL PV, CA16235, aims to examine applications of integrated and applied photovoltaic technologies on ten landmark ... -
Seasonal variation analysis of Greenland ice mass time-series
(Journal article; Peer reviewed, 2017)We derive the mass balance of Greenland ice sheet from the Gravity Recovery and Climate Experiment (GRACE) for the period January 2003–October 2014. We have found an ice mass loss with peak amplitude of −15 cm/yr in the ... -
Tidal harmonics retrieval using GNSS-R dual-frequency complex observations
(Peer reviewed; Journal article, 2023)Tidal analysis and methods for estimation and prediction of ocean tidal constitutes are essential in a large area of scientific disciplines, for example, navigation, onshore and offshore engineering, and production of green ... -
User guides for the climate adaptation of buildings and infrastructure in Norway – Characteristics and impact
(Journal article; Peer reviewed, 2017)To reduce future damages on buildings and infrastructure, and prepare society for the coming climate challenges, in recent years numerous user guides have been developed. The objective of this study is to provide the first ...