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Earth Sciences
Results 81 - 100 of 139.
Is Climate Sensitivity Higher Than Believed?
Meta-study on noble gas concentrations in ground water reconstructs climate in the last Ice Age The last Ice Age about 20,000 years ago may have been colder than previous reconstructions of the period's global temperature have led us to believe. An international meta-study to which Werner Aeschbach of the Institute of Environmental Physics at Heidelberg University contributed suggests this may have been the case.
Meta-study on noble gas concentrations in ground water reconstructs climate in the last Ice Age The last Ice Age about 20,000 years ago may have been colder than previous reconstructions of the period's global temperature have led us to believe. An international meta-study to which Werner Aeschbach of the Institute of Environmental Physics at Heidelberg University contributed suggests this may have been the case.
New indicator for oxygen levels in early oceans developed
A geoscientific research team led by scientists from the University of Cologne has come a decisive step closer to determining the oxygen levels in the early Earth's history by analysing the composition of tungsten isotopes / publication in PNAS Oxygen is essential for the development of higher life.
A geoscientific research team led by scientists from the University of Cologne has come a decisive step closer to determining the oxygen levels in the early Earth's history by analysing the composition of tungsten isotopes / publication in PNAS Oxygen is essential for the development of higher life.
Seasonal Water Resource on the Upper Indus
Heidelberg geographers draw up full inventory of barely researched aufeis (icing) fields Seasonally occurring fields of aufeis (icing) constitute an important resource for the water supply of the local population in the Upper Indus Basin. However, little research has been done on them so far. Geographers at the South Asia Institute of Heidelberg University have now examined the spreading of aufeis and, for the first time, created a full inventory of these aufeis fields.
Heidelberg geographers draw up full inventory of barely researched aufeis (icing) fields Seasonally occurring fields of aufeis (icing) constitute an important resource for the water supply of the local population in the Upper Indus Basin. However, little research has been done on them so far. Geographers at the South Asia Institute of Heidelberg University have now examined the spreading of aufeis and, for the first time, created a full inventory of these aufeis fields.
Plant provenance influences pollinators
Insect decline is one of the greatest challenges facing our society. As a result of the destruction of many natural habitats, bees, bumblebees, butterflies, beetles and the like find less and less food. As a consequence, they are barely able to fulfil their role as pollinators of wild and cultivated plants.
Insect decline is one of the greatest challenges facing our society. As a result of the destruction of many natural habitats, bees, bumblebees, butterflies, beetles and the like find less and less food. As a consequence, they are barely able to fulfil their role as pollinators of wild and cultivated plants.
Asteroid crater on Earth provides clues about Martian craters
Research team led by the University of Göttingen discovers crater floor sagging from bowl-shaped volcanic ash layer The almost 15-million-year-old Nördlinger Ries is an asteroid impact crater filled with lake sediments. Its structure is comparable to the craters currently being explored on Mars. In addition to various other deposits on the rim of the basin, the crater fill is mainly formed by stratified clay deposits.
Research team led by the University of Göttingen discovers crater floor sagging from bowl-shaped volcanic ash layer The almost 15-million-year-old Nördlinger Ries is an asteroid impact crater filled with lake sediments. Its structure is comparable to the craters currently being explored on Mars. In addition to various other deposits on the rim of the basin, the crater fill is mainly formed by stratified clay deposits.
When a Stream of Cosmic Debris Struck the Earth
A research team including members of Freie Universität Berlin has found traces of an ancient meteor explosion above the Antarctic / Re-assessment of asteroid threat No 058/2021 from Apr 01, 2021 An international research team has discovered that a huge meteor exploded over the Antarctic ice plateau around 430,000 years ago.
A research team including members of Freie Universität Berlin has found traces of an ancient meteor explosion above the Antarctic / Re-assessment of asteroid threat No 058/2021 from Apr 01, 2021 An international research team has discovered that a huge meteor exploded over the Antarctic ice plateau around 430,000 years ago.
The same sea level for everyone
The Earth's gravity field as the basis for an International Height Reference System Maps generally indicate elevation in meters above sea level. But sea level is not the same everywhere. A group of experts headed by the Technical University of Munich (TUM), has developed an International Height Reference System (IHRS) that will unify geodetic measurements worldwide.
The Earth's gravity field as the basis for an International Height Reference System Maps generally indicate elevation in meters above sea level. But sea level is not the same everywhere. A group of experts headed by the Technical University of Munich (TUM), has developed an International Height Reference System (IHRS) that will unify geodetic measurements worldwide.
Understanding the Spatial and Temporal Dimensions of Landscape Dynamics
Heidelberg geoinformation scientists develop new computer-based method to analyse topographic changes The Earth's surface is subject to continual changes that dynamically shape natural landscapes. Global phenomena like climate change play a role, as do short-term, local events of natural or human origin.
Heidelberg geoinformation scientists develop new computer-based method to analyse topographic changes The Earth's surface is subject to continual changes that dynamically shape natural landscapes. Global phenomena like climate change play a role, as do short-term, local events of natural or human origin.
Getting to the Bottom of Life on Mars
Researchers at Freie Universität Berlin are involved in developing an interactive map of Mars No 030/2021 from Feb 19, 2021 People who are interested in discovering the mysteries of the galaxy can now see what Mars looks like up close thanks to an interactive map developed by researchers from the Planetary Sciences and Remote Sensing group at Freie Universität Berlin.
Researchers at Freie Universität Berlin are involved in developing an interactive map of Mars No 030/2021 from Feb 19, 2021 People who are interested in discovering the mysteries of the galaxy can now see what Mars looks like up close thanks to an interactive map developed by researchers from the Planetary Sciences and Remote Sensing group at Freie Universität Berlin.
Global Mapping Projects aid Humanitarian Organisations
In recent years, free digital world maps like OpenStreetMap (OSM) have become a vital instrument to support humanitarian missions over the entire world. In disaster management as well as the implementation of the United Nations Sustainability Development Goals (SDGs), geodata compiled by the volunteer mapper community open up new possibilities to coordinate aid interventions and carry out sustainability projects.
In recent years, free digital world maps like OpenStreetMap (OSM) have become a vital instrument to support humanitarian missions over the entire world. In disaster management as well as the implementation of the United Nations Sustainability Development Goals (SDGs), geodata compiled by the volunteer mapper community open up new possibilities to coordinate aid interventions and carry out sustainability projects.
Geologic history written in garnet sand
Research team with participation from Göttingen University use secrets trapped in grains of sand to reveal rock journey and formation On a remote island in Papua New Guinea, an international research team including the University of Göttingen has made an important geological discovery from a garnet-rich sand.
Research team with participation from Göttingen University use secrets trapped in grains of sand to reveal rock journey and formation On a remote island in Papua New Guinea, an international research team including the University of Göttingen has made an important geological discovery from a garnet-rich sand.
New Data about the structure of the Pyramid of Cheops
An interview with Prof. Christian Große about his pyramid research Measuring a height of 139 meters (455 ft.), the largest of the three pyramids of Giza is one of the oldest edifices in the world. Yet, even after 4,500 years, this architectural masterpiece still leaves some questions unanswered.
An interview with Prof. Christian Große about his pyramid research Measuring a height of 139 meters (455 ft.), the largest of the three pyramids of Giza is one of the oldest edifices in the world. Yet, even after 4,500 years, this architectural masterpiece still leaves some questions unanswered.
Slow start of plate tectonics despite a hot early Earth
Writing in PNAS, scientists from Cologne university present important new constraints showing that plate tectonics started relatively slow, although the early Earth's interior was much hotter than today. In an international collaboration earth scientists at the University of Cologne discovered that during Earth's early history mantle convection on, i.e. the internal mixing of our planet, was surprisingly slow and spatially restricted.
Writing in PNAS, scientists from Cologne university present important new constraints showing that plate tectonics started relatively slow, although the early Earth's interior was much hotter than today. In an international collaboration earth scientists at the University of Cologne discovered that during Earth's early history mantle convection on, i.e. the internal mixing of our planet, was surprisingly slow and spatially restricted.
How Stable is the Antarctic Ice Sheet?
Scientists from Heidelberg University investigate which factors determine the stability of ice masses in East Antarctica As temperatures rise due to climate change, the melting of polar ice sheets is accelerating. An international team of researchers led by geoscientist Dr Kim Jakob from Heidelberg University has now examined the dynamics of the East Antarctic Ice Sheet more closely.
Scientists from Heidelberg University investigate which factors determine the stability of ice masses in East Antarctica As temperatures rise due to climate change, the melting of polar ice sheets is accelerating. An international team of researchers led by geoscientist Dr Kim Jakob from Heidelberg University has now examined the dynamics of the East Antarctic Ice Sheet more closely.
Wind farms are to become quieter
Noise from wind turbines is a constant source of annoyance, despite compliance with emission control standards. But while some people feel heavily burdened by the noises, others hardly notice them. The Inter-Wind research project (Interdisciplinary Analysis and Mitigation Approaches - Residents' Experience of Acoustic and Seismic Wind Turbine Emissions), in which the University of Stuttgart is also involved, is investigating which factors interact in the noise pollution caused by wind turbines and which approaches for mitigation can be considered.
Noise from wind turbines is a constant source of annoyance, despite compliance with emission control standards. But while some people feel heavily burdened by the noises, others hardly notice them. The Inter-Wind research project (Interdisciplinary Analysis and Mitigation Approaches - Residents' Experience of Acoustic and Seismic Wind Turbine Emissions), in which the University of Stuttgart is also involved, is investigating which factors interact in the noise pollution caused by wind turbines and which approaches for mitigation can be considered.
No Space for Climate Change
How do rising temperatures and more hot days affect cities, especially the heat stress on public squares? And what needs to be done in response to climate change? A team of Heidelberg University geographers led by Dr Kathrin Foshag investigated these questions using locations in the Heidelberg urban area.
How do rising temperatures and more hot days affect cities, especially the heat stress on public squares? And what needs to be done in response to climate change? A team of Heidelberg University geographers led by Dr Kathrin Foshag investigated these questions using locations in the Heidelberg urban area.
Forces in the Earth’s crust determine the height of mountain ranges
Geoscientists show that it is not erosion but an equilibrium of forces in the Earth's crust that controls the "growth" of mountains / Study in "Nature" Which forces and mechanisms determine the height of mountains? Researchers at the University of Münster and the German Research Centre for Geoscience (GFZ) in Potsdam have now found a surprising answer: It is not erosion and weathering of rocks that determine the upper limit of mountain belts, but rather an equilibrium of forces in the Earth's crust.
Geoscientists show that it is not erosion but an equilibrium of forces in the Earth's crust that controls the "growth" of mountains / Study in "Nature" Which forces and mechanisms determine the height of mountains? Researchers at the University of Münster and the German Research Centre for Geoscience (GFZ) in Potsdam have now found a surprising answer: It is not erosion and weathering of rocks that determine the upper limit of mountain belts, but rather an equilibrium of forces in the Earth's crust.
Asteroid Triggered Mass Extinction at End of Cretaceous Period
Sixty-six million years ago - at the Cretaceous-Paleogene boundary - nearly three-quarters of all animal species died out, including the dinosaurs. The cause for this has fuelled controversy among scientists for decades. The latest research from an international research team indicates that an asteroid strike was the sole driver of the mass extinction and that volcanic activity did not play a role, even though it certainly had an impact on the climate and the biosphere.
Sixty-six million years ago - at the Cretaceous-Paleogene boundary - nearly three-quarters of all animal species died out, including the dinosaurs. The cause for this has fuelled controversy among scientists for decades. The latest research from an international research team indicates that an asteroid strike was the sole driver of the mass extinction and that volcanic activity did not play a role, even though it certainly had an impact on the climate and the biosphere.
An iron-clad asteroid
Mineralogists from Jena and Japan make a surprising discovery on soil samples of the asteroid "Itokawa". Mineralogists from Jena and Japan discover a previously unknown phenomenon in soil samples from the asteroid 'Itokawa': the surface of the celestial body is covered with tiny hair-shaped iron crystals.
Mineralogists from Jena and Japan make a surprising discovery on soil samples of the asteroid "Itokawa". Mineralogists from Jena and Japan discover a previously unknown phenomenon in soil samples from the asteroid 'Itokawa': the surface of the celestial body is covered with tiny hair-shaped iron crystals.
Dinosaurs died because of an asteroid impact
Researchers disprove theory of volcanic eruption as reason for mass deaths / Mineralogists and planetologists of the University of Münster participating in worldwide study in "Science' Was it volcanic eruptions in western India or an asteroid impact that caused the death of dinosaurs and many other animal species 66 million years ago? Researchers have been discussing this since the 1980s.
Researchers disprove theory of volcanic eruption as reason for mass deaths / Mineralogists and planetologists of the University of Münster participating in worldwide study in "Science' Was it volcanic eruptions in western India or an asteroid impact that caused the death of dinosaurs and many other animal species 66 million years ago? Researchers have been discussing this since the 1980s.