Results 61 to 70 of about 1,192 (179)

Demonstration of an instream flow model to accommodate a threatened tiger beetle in riverine dune habitat

Insect Conservation and Diversity, Volume 19, Issue 4, Page 918-932, July 2026.
Burrows of the threatened Gibson's Big Sand Tiger Beetle in riverine dune habitats are susceptible to flooding through managed flows. HEC‐RAS modelling identified the flow thresholds above which flooding would occur for burrows and affect the beetle larvae. These findings provide instream flow guidelines for conserving this threatened species and guide
Iain D. Phillips, Aaron J. Bell, Faline Drummond   +2 more
wiley   +1 more source

Simultaneous Generation of Topographic Models and Manning Roughness Coefficient Maps From Tri‐Stereoscopic Satellite Images: Application to the Huarmey River, Peru

The Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.
Tri‐stereoscopic PeruSat‐1 imagery enables the simultaneous generation of 0.70 m‐resolution topography and spatially distributed Manning roughness maps, achieving 0.434 m vertical accuracy. Integrated into HEC‐RAS, these products provide consistent, high‐resolution inputs that improve hydraulic modelling and flood risk assessment in data‐scarce river ...
Jorge L. Miranda‐Pita, Pedro A. Plaza‐Álvarez, Jorge Lopez‐Rebollo, Diego González‐Aguilera   +3 more
wiley   +1 more source

The role of coordinates in border diplomacy: The case of Albania [PDF]

Micro, Macro & Mezzo Geoinformation
This study addresses the essential importance of geodetic coordinates in border diplomacy, focusing on the case of Albania. State borders represent not only geographical divisions, but also sovereignty, national identity, and economic interest.
Anduel Cauli, Pal Nikolli, Oltion Pupi
doaj   +1 more source

Aspek Geodetik Penegasan Batas Darat Indonesia dan Papua New Guinea: Status dan Permasalahannnya

Journal of Mathematical and Fundamental Sciences, 2013
Technical problems of land boundary between Indonesia and Papua New Guinea are related to delimitation and demarcation process that has been done by two countries.
Silvester Sari Sai, Hasanuddin Z. Abidin, Sobar Sutisna   +2 more
doaj   +1 more source

Ringdown Modulation of Acceleration Radiation in the Schwarzschild Background

Fortschritte der Physik, Volume 74, Issue 6, June 2026.
ABSTRACT We derive an analytic first‐order description of how Schwarzschild ringdown affects a detector‐based detailed‐balance diagnostic in a near‐horizon, single‐mode setting. A freely falling two‐level system couples to a cavity‐filtered outgoing mode of fixed asymptotic frequency, whose static Schwarzschild response gives geometric photon ...
Reggie C. Pantig
wiley   +1 more source

Referencing regional geoid-based vertical datums to national tide gauge networks

Journal of Geodetic Science, 2012
The objective of this study is to investigate the best means for referencing a regional geoid-based vertical datum to a network of tide gauges. In this study, a network of 27 tide gauge stations scattered along the coasts of Canada are used in order to ...
Bolkas D., Fotopoulos G., Sideris M. G.
doaj   +1 more source

Tracking Atmospheric River Impacts on Greenland Climate and Glacier Hydrology Over the Past Decade, 2010–2019

Earth and Space Science
Atmospheric Rivers (ARs) play an important role in influencing polar climate systems and glacier hydrology, making their study essential for understanding climate change impacts in these sensitive regions. With the increasing frequency of extreme weather
Jingming Li, Wenhao Li, C. K. Shum, Feng Ming, Jintao Lei, Chuanyi Zou   +5 more
doaj   +1 more source

6326 Shades of Georeferencing BIM - Low distortion projections (LDP) for the German Railway [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Beside smart Information Management, Building Information Modeling (BIM) focuses on three-dimensional planning and model coordination. However, 3D CAD/BIM software does not conceptualize geodetic coordinates, which causes systematic deviations between ...
C. Clemen, E. Romanschek
doaj   +1 more source

Approximations of the GOCE error variance-covariance matrix for least-squares estimation of height datum offsets

Journal of Geodetic Science, 2012
One main geodetic objective of the European Space Agency’s satellite mission GOCE (gravity field and steady-state ocean circulation explorer) is the contribution to global height system unification.
Gerlach Ch., Fecher Th.
doaj   +1 more source

Accuracy assessment of cadastral maps using high resolution aerial photos

MATEC Web of Conferences, 2018
A cadastral map is a map that shows the boundaries and ownership of land parcels. Some cadastral maps show additional details, such as survey district names, unique identifying numbers for parcels, certificate of title numbers, positions of existing ...
Alwan Imzahim, Hamed Noor, Husien Haifaa
doaj   +1 more source