Results 71 to 80 of about 5,463 (215)

Stratigraphic Signals and Cloudy Band Chemistry in Ice Cores Revealed by Large‐Area Elemental Mapping

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Mapping the impurity distribution in 2D with laser ablation inductively coupled plasma mass spectrometry (LA‐ICP‐MS) has provided valuable insights into the micro‐chemistry of a broad range of environmental samples. However, technical limitations have largely restricted mapping to millimeter‐sized maps as “snapshots.” Especially for ...
Pascal Bohleber   +4 more
wiley   +1 more source

Open access nationwide data sets for drinking water hardness at public waterworks and their water supply areas in Denmark

open access: yesGEUS Bulletin
Three spatiotemporal data sets of drinking water hardness in Denmark (version 1) are presented here: (1) annual drinking water hardness at public waterworks (1905–2023); (2) annual drinking water hardness at their water supply areas (1978–2023) and (3 ...
Denitza D. Voutchkova   +6 more
doaj   +1 more source

Full Waveform Modeling of Bridgmanite Fabric‐Induced Seismic Discontinuities in the Mid‐Mantle: Implications for Double Underside Reflections Beneath Subduction Zones

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Mid‐mantle (660–2,000 km) seismic observations are commonly attributed to thermo‐chemical heterogeneities or phase transitions, yet many observed features remain difficult to reconcile with these mechanisms alone. It has been shown that the depth‐dependent behavior of bridgmanite deformation generates a strain‐induced seismic discontinuity ...
John Keith Magali   +3 more
wiley   +1 more source

Zinc exploration data package - North Greenland

open access: yes, 2019
This data package contains much of the current data available regarding zinc in North Greenland. Size: 2.8 GB. Contents 1. Mineral occurrences List of all known mineral occurrences in the area Descriptions of the individual mineral occurrences 2 ...
Geological Survey of Denmark and Greenland
core   +1 more source

Diamonds and lithospheric mantle properties in the Neoproterozoic igneous province of southern West Greenland [PDF]

open access: yes, 2009
The search for diamonds in Greenland has resulted in the discovery of many new dykes of kimberlite and ultramafic lamprophyre and, most importantly, in the acquisition of a wealth of chemical data on rocks and minerals representing mantle material ...
Secher, Karsten   +4 more
core   +1 more source

Groundwater denitrification in Denmark—evolution, extent and reaction rates

open access: yesEnvironmental Research Letters
Globally, nitrogen (N) pollution of the environment is a widespread consequence of intensive agriculture. Denmark has combated this challenge from mid-1980 by implementing effective national N regulation of agriculture.
Birgitte Hansen   +5 more
doaj   +1 more source

Drought dynamics across the hydrological cycle – an extensive validation of the National Hydrological Model of Denmark [PDF]

open access: yesHydrology and Earth System Sciences
Droughts are gaining attention in temperate regions, as underscored by the severe European droughts of 2018 and 2022. In Denmark, these events caused widespread agricultural losses, degradation of surface waters and ecosystems, and infrastructure damage ...
R. Schneider   +8 more
doaj   +1 more source

A National Scale Hybrid Machine Learning Model for Enhanced Groundwater Depth Estimation

open access: yesWater Resources Research, Volume 62, Issue 10, October 2026.
Abstract Groundwater is one of the most valuable natural resources, yet it is increasingly under pressure from climate change and human activities. Shallow groundwater depth (GWD) is a key indicator for evaluating groundwater availability and flood hazards, yet the measurements are often too sparse to capture its variability both in time and space.
Jun Liu   +5 more
wiley   +1 more source

DODEX – Geoscience Documents and Data for Exploration in Greenland [PDF]

open access: yes, 2011
In the following we describe the project Geoscience Documents and Data for Exploration in Greenland, in short DODEX. A central part of DODEX is an interactive web application (http://www.geus.dk/dodex/) that provides easy access to all non-confidential ...
Pedersen, Mikael   +4 more
core   +1 more source

Operational flood forecasting in Denmark - integrating groundwater and surface water

open access: yesGEUS Bulletin
Most operational flood forecasting systems provide predictions of pluvial and fluvial floods, often neglecting groundwater flooding. Groundwater-induced floods can occur when prolonged rainfall, high river stages or elevated sea levels raise the ...
Jun Liu   +4 more
doaj   +1 more source

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