Archiv: Interaktionen / interactions


09.04.2023 - 08:03 [ Ban Ki Moon / Sicherheitsrat der Vereinten Nationen ]

Report of the Secretary-General on the United Nations Disengagement Observer Force for the period from 4 September to 19 November 2014

(01.12.2014)

5. In view of the heavy fighting, which was approaching close to the UNDOF headquarters at Camp Faouar and the mission’s positions in the central part of the area of separation, the Force Commander briefed both parties early in September on the Force’s plans to relocate its personnel and assets should the Nusra Front or other extremist fighters who posed a clear threat to the mission endanger the safety and security of the United Nations personnel. It should be noted here that from information posted on social media as well as in the course of its efforts to secure the release of the peacekeepers, the United Nations learned that its personnel had been taken and held by members of the Nusra Front. There were indications that the Nusra Front intended to detain additional UNDOF personnel and take from UNDOF more weapons and vehicles as opportunities arose. (…)

12. Crossing of the ceasefire line by civilians, primarily shepherds, was observed on an almost daily basis. On 24 October, United Nations observation post 73 observed 12 IDF soldiers who detained one civilian between the Alpha line and the Israeli technical fence south-east of the observation post and subsequently took him away. IDF informed UNDOF that they released the person within one hour at the same location. On 27 October, position 80 observed two IDF soldiers east of the technical fence returning from the direction of the Alpha line towards the technical fence. UNDOF observed IDF opening the technical fence gate and letting two individuals pass from the Bravo to the Alpha side. Following the evacuation of UNDOF personnel from position 85 on 28 August, UNDOF sporadically observed armed members of the opposition interacting with IDF across the ceasefire line in the vicinity of United Nations position 85.

09.04.2023 - 07:32 [ UN Tribune ]

UN Peacekeepers Observe IDF Interacting With Al Nusra in Golan

(4.12.2014)

UN troops monitoring the 1974 ceasefire between Israel and Syria have witnessed interactions between members of the Israeli Defence Forces and the Al Nusra Front who have taken over a large part of the Golan Heights.

04.10.2021 - 07:04 [ National Astronomical Observatory of Japan / SciTechdaily.com ]

Interplay Between Magnetic Force and Gravity in Massive Star Formation

(September 26, 2021)

The magnetic field is part of one of the four fundamental forces in nature. It plays a vital role in everyday life, from producing electricity in hydroelectric power plants to diagnosing diseases in medicine. Historically, the Earth’s magnetic field served as a compass for travelers before modern technology was available. Crucially for life, the Earth’s magnetic field acts as a shield protecting us from charged particles emanating from the Sun, which are accelerated by the Sun’s magnetic field. Removing this shield would very likely extinguish life on Earth.

10.08.2021 - 13:08 [ International Earth Rotation and Reference Systems Service - iers.org ]

Measuring the irregularities of the Earth‘s rotation

The variability of the earth-rotation vector relative to the body of the planet or in inertial space is caused by the gravitational torque exerted by the Moon, Sun and planets, displacements of matter in different parts of the planet and other excitation mechanisms.

15.07.2021 - 07:28 [ Carl Sagan, George Mullen / University of Texas at Austin ]

Earth and Mars: Evolution of Atmospheres and Surface Temperatures

(7. Juli 1972)

Indeed, detailed global climatic models (17) suggest that a relative increase in A of only 2 percent is enough to induce extensive glaciation on Earth, which implies that the present climate is extremely sensitive to albedo. This leaves changes in atmospheric composition as a possible explanation. Major variations in the CO2 abundance will have only minor greenhouse effects because the strongest bands are nearly saturated. A change in the present CO2 abundance by a factor of 2 will produce directly a 2° variation in surface temperature (18). The CO2 abundance is highly controlled by silicate-carbonate equilibria; by buffering with seawater, which contains almost 100 times the atmospheric CO2; and by the respiration and photosynthesis feedback loop (19).

21.02.2021 - 14:10 [ Carl Sagan, George Mullen / University of Texas at Austin ]

Earth and Mars: Evolution of Atmospheres and Surface Temperatures

(7. Juli 1972)

Indeed, detailed global climatic models (17) suggest that a relative increase in A of only 2 percent is enough to induce extensive glaciation on Earth, which implies that the present climate is extremely sensitive to albedo. This leaves changes in atmospheric composition as a possible explanation. Major variations in the CO2 abundance will have only minor greenhouse effects because the strongest bands are nearly saturated. A change in the present CO2 abundance by a factor of 2 will produce directly a 2° variation in surface temperature (18). The CO2 abundance is highly controlled by silicate-carbonate equilibria; by buffering with seawater, which contains almost 100 times the atmospheric CO2; and by the respiration and photosynthesis feedback loop (19).

21.02.2021 - 03:32 [ NASA.gov ]

NASA Missions Make Unprecedented Map of Sun’s Magnetic Field

They’ll have a chance to take that step forward soon: A re-flight of the mission was just greenlit by NASA. Though the launch date isn’t yet set, the team plans to use the same instrument but with a new technique to measure a much broader swath of the Sun.

“Instead of just measuring the magnetic fields along the very narrow strip, we want to scan it across the target and make a two-dimensional map,” McKenzie said.

15.09.2020 - 16:30 [ University of North Carolina at Charlotte ]

Solar Rotation Effects on The Thermospheres of Mars and Earth

(spring 2006)

The first thing that must be understood in this paper is the chain of events that is being tracked. From the Sun‘s rotational quirks, to their effects on CO2 in the respective atmospheres of Mars and Earth. There is also a comparison to older, normalized data from Venus.

(…)

Interestingly, once the data was compiled, there was no correlation found between the levels of CO2 found in the upper atmosphere (~150km on Earth, where this transformation takes place.) Broadening their search, the authors found a strong correlation between the ratio of CO2/O2 and the thermal changes. They feel this suggests that the thermal diffusion effect relies on some form of resonance between the two molecules involved

15.09.2020 - 16:15 [ Hans Volland / Journal of Atmospheric and Solar-Terrestrial Physics / researchgate.net ]

Periodic variations of solar radiation – a possible source of solar activity-weather effects

(May 1979)

It is suggested that long-lasting co-rotating active longitudes on the Sun may be associated with small variations of the solar radiation reaching the Earth. The oscillations have a basic period of about 27 days and are not expected to have amplitudes greater than 0.1%. They result in a time-varying heat input to the Earth‘s continents and, since the land exchanges heat with the overlying atmosphere, this oscillatory heating process generates large-scale planetary waves, mainly of the Rossby-Haurwitz type, in the atmosphere.

15.09.2020 - 15:42 [ Journal of Atmospheric and Solar-Terrestrial Physics / ScienceDirect.com ]

The effect of the 11-year solar-cycle on the temperature in the upper-stratosphere and mesosphere: Part II numerical simulations and the role of planetary waves

(July 2005)

The numerical simulations presented here suggest a mechanism by which a small change induced by the solar forcing can generate a large atmospheric response.

15.09.2020 - 15:14 [ US National Science Foundation ]

Researchers find link between Atlantic hurricanes and weather system in East Asia

(11.08.2020)

In the new study, the U.S. National Science Foundation-funded researchers say that a stronger East Asian Subtropical Jet Stream (EASJ) is associated with fewer Atlantic tropical cyclones.

The EASJ is an upper-level river of wind that originates in East Asia and moves west to east across the globe. It carries with it an atmospheric phenomenon called a Rossby wave.

Rossby waves occur naturally in the Earth‘s oceans and atmosphere, forming because of the planet‘s rotation

13.08.2020 - 11:15 [ Libertad Media ]

Interaktives „Stadtgeflüster“: Freie Bühne Jena lädt zum Nachdenken über Alltagskrisen ein

Logistisch ist das Stück ein großer Wurf für die Freie Bühne: Die Aufteilung des Stadtrundgangs in kleingruppengerechte Szenen, die manchmal einen Sketch, manchmal eine Tanzchoreografie oder auch einen introspektiven Einakter beinhalten, versetzt die Schauspieler*innen in einen anspruchsvollen Schichtbetrieb, dessen reibungsloser Ablauf von vielerlei Umwelteinflüssen gestört werden kann

09.08.2020 - 08:07 [ journals.plos.org ]

The Earth’s magnetic field in Jerusalem during the Babylonian destruction: A unique reference for field behavior and an anchor for archaeomagnetic dating

Archaeomagnetism, the application of paleomagnetic methods to archaeological materials, is interdisciplinary not only in its methods but also in its impact. Well-dated archaeological materials are a critical data source for geomagnetic secular variation models [1–6], which are used to explore the dynamic structure of Earth’s core [7, 8], the rates of cosmogenic isotope production in the atmosphere [9–11] and the possible effect of geomagnetism on climate [11–13]. Precise documentation of the ancient field also helps contextualize geomagnetic observations from the modern era, such as the evolution of the South Atlantic Anomaly [14, 15] and the ongoing decline in the field’s intensity [16–18].

09.08.2020 - 08:05 [ Haaretz ]

Ruins of Ancient Jerusalem Help Unravel Enigmas of Earth’s Magnetic Field

Albert Einstein once called the behavior of the magnetic field one of the great mysteries of physics, but understanding and possibly predicting its changes has taken on a new urgency for scientists. The field has lost around 10 percent of its strength since measurements began less than 200 years ago, leading some researchers to question whether we are on the way to a flip in polarity, which would be preceded by a loss of our precious shield against cosmic radiation.

14.07.2020 - 16:25 [ New York Times ]

Caught in ‘Ideological Spiral,’ U.S. and China Drift Toward Cold War

Relations are in free fall. Lines are being drawn. As the two superpowers clash over technology, territory and clout, a new geopolitical era is dawning.

28.03.2020 - 15:18 [ CNN ]

Scientists found a secret in old Voyager 2 data. This is why we need to revisit Uranus and Neptune

„The way in which the sun‘s solar wind interacts with Uranus is unlike any planet we‘ve ever explored,“ DiBraccio said. „We are left with questions regarding to what degree the solar wind affects dynamics at Uranus such as transporting atmospheric particles, transferring energy and even changing the planet‘s climate over time.“

22.01.2020 - 22:09 [ Geophysical Research Letters 35(16) / researchgate.net ]

Magnetic effect on CO 2 solubility in seawater: A possible link between geomagnetic field variations and climate

(August 2008)

Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 mT). The magnetic-field effect on CO2 solubility is twice as large, from which we surmise that geomagnetic field variations modulate the carbon exchange between atmosphere and ocean. A 1% reduction in magnetic dipole moment may release up to ten times more CO2 from the surface ocean than is emitted by subaerial volcanism.

22.01.2020 - 21:54 [ Carl Sagan, George Mullen / utexas.edu ]

Earth and Mars: Evolution of Atmospheres and Surface Temperatures

(7. Juli 1972)

Indeed, detailed global climatic models (17) suggest that a relative increase in A of only 2 percent is enough to induce extensive glaciation on Earth, which implies that the present climate is extremely sensitive to albedo. This leaves changes in atmospheric composition as a possible explanation. Major variations in the CO2 abundance will have only minor greenhouse effects because the strongest bands are nearly saturated. A change in the present CO2 abundance by a factor of 2 will produce directly a 2° variation in surface temperature (18). The CO2 abundance is highly controlled by silicate-carbonate equilibria; by buffering with seawater, which contains almost 100 times the atmospheric CO2; and by the respiration and photosynthesis feedback loop (19).

02.01.2020 - 15:16 [ Carl Sagan, George Mullen / utexas.edu ]

Earth and Mars: Evolution of Atmospheres and Surface Temperatures

(7. Juli 1972)

Indeed, detailed global climatic models (17) suggest that a relative increase in A of only 2 percent is enough to induce extensive glaciation on Earth, which implies that the present climate is extremely sensitive to albedo. This leaves changes in atmospheric composition as a possible explanation. Major variations in the CO2 abundance will have only minor greenhouse effects because the strongest bands are nearly saturated. A change in the present CO2 abundance by a factor of 2 will produce directly a 2° variation in surface temperature (18). The CO2 abundance is highly controlled by silicate-carbonate equilibria; by buffering with seawater, which contains almost 100 times the atmospheric CO2; and by the respiration and photosynthesis feedback loop (19).

02.01.2020 - 13:40 [ Geophysical Research Letters 35(16) / researchgate.net ]

Magnetic effect on CO 2 solubility in seawater: A possible link between geomagnetic field variations and climate

(August 2008)

Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 mT). The magnetic-field effect on CO2 solubility is twice as large, from which we surmise that geomagnetic field variations modulate the carbon exchange between atmosphere and ocean. A 1% reduction in magnetic dipole moment may release up to ten times more CO2 from the surface ocean than is emitted by subaerial volcanism.

02.01.2020 - 13:40 [ Ludwig Maximilian Universität München ]

Wenn ein Treibhausgas baden geht: Wie das Erdmagnetfeld unser Klima beeinflusst

(6. Oktober 2008)

Die Ergebnisse zeigten, dass selbst kleine Veränderungen des Magnetfelds die Löslichkeit von Gasen im Wasser verändern. „Wenn das Magnetfeld schwächer war, löste sich 15 Prozent weniger Luft im Wasser als bei einem stärkeren Magnetfeld“, erläutert Winklhofer. „Für Kohlendioxid war der beobachtete Effekt sogar doppelt so stark.“

02.01.2020 - 13:08 [ National Aeronautics and Space Administration ]

Close Comet Flyby Threw Mars’ Magnetic Field Into Chaos

(09.03.2016)

And like a solar storm, the comet’s close passage likely fueled a temporary surge in the amount of gas escaping from Mars’ upper atmosphere. Over time, those storms took their toll on the atmosphere.

“With MAVEN, we’re trying to understand how the sun and solar wind interact with Mars,” said Bruce Jakosky, MAVEN’s principal investigator from the University of Colorado’s Laboratory for Atmospheric and Space Physics in Boulder. “By looking at how the magnetospheres of the comet and of Mars interact with each other, we’re getting a better understanding of the detailed processes that control each one.”

02.01.2020 - 13:07 [ Alexander Ershkovich / Researchgate.net ]

On the Origin of the Magnetic Field in Type-1 Comet Tails

(4. Juni 1976)

If the magnetic field in a type I comet tail were of internal origin, it would decrease with distance along the tail axis, and the comet tail would increase in cross section. The tail of Comet Arend-Roland (1957 III) was shown not to expand with distance from the nucleus, whence it is concluded that the magnetic field in the tail is of external origin. The magnetic field in type I comet tails, estimated from different considerations, turns out to be of the order of the interplanetary field, so that one may suppose that it results from the captured solar-wind magnetic field.

Recently, Mendis and Alfvén (1974) suggested that substantial magnetic fields, up to 100-1000y, could sometimes be generated within the coma. This means that the magnetic field in the comet tail may result from processes analogous to those producing the Earth‘s magnetotail.

02.01.2020 - 10:23 [ American Geophysical Union / Youtube ]

Press Conference: Postcards from the edge of space: New images, new phenomena, and new insights

Tuesday, 10 December, 2:30 p.m. │ Presentations SA11A-01, SM51G-3219

In this briefing, scientists will present new images from Earth’s ionosphere, bringing color to processes that have widespread implications for the part of space closest to home. This collection of photos will span the first images ever captured by NASA’s ICON spacecraft — just launched in October 2019 — and the first science discoveries from NASA’s GOLD mission, along with observations of a never-before-studied type of aurora.

Participants:

Jennifer Briggs, Pepperdine University, Malibu, California, United States;

Richard Eastes, University of Colorado Boulder, Boulder, Colorado, United States;

Thomas Immel, University of California Berkeley, Berkeley, California, United States.

02.01.2020 - 10:12 [ businessinsider.com ]

A mysterious crunch in Earth‘s magnetic field created a new type of aurora borealis. A NASA intern discovered it.

(26.12.2019)

A NASA intern discovered a new type of aurora in 3-year-old video footage of the Arctic sky.

01.11.2019 - 06:52 [ Geophysical Research Letters 35(16) / researchgate.net ]

Magnetic effect on CO 2 solubility in seawater: A possible link between geomagnetic field variations and climate

(August 2008)

Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 mT). The magnetic-field effect on CO2 solubility is twice as large, from which we surmise that geomagnetic field variations modulate the carbon exchange between atmosphere and ocean. A 1% reduction in magnetic dipole moment may release up to ten times more CO2 from the surface ocean than is emitted by subaerial volcanism.

15.10.2019 - 18:36 [ Washington Post ]

Russia patrolling between Turkish and Syrian forces after U.S. troops withdraw

A Russian Defense Ministry statement said that military police in northwestern Manbij were patrolling “along the line of contact between the Syrian Arab Republic and Turkey.” The statement said the Russian military was also “interacting” with Turkey’s government.

15.10.2019 - 18:12 [ US Generalstab (jcs.mil) ]

Readout of Chairman of the Joint Chiefs of Staff Gen. Milley‘s Phone Call with Russian Chief of the General Staff Gen. Gerasimov

October 14, 2019

WASHINGTON–Joint Staff Spokesperson Col. DeDe S. Halfhill provided the following readout:

Chairman of the Joint Chiefs of Staff Gen. Mark A. Milley spoke with Chief of the Russian General Staff Gen. Valery Gerasimov by telephone today.

The two military leaders exchanged their views on issues of mutual concern in Syria.

The two leaders have agreed to keep the specific details of their conversation private.

25.09.2019 - 19:42 [ Geophysical Research Letters 35(16) / researchgate.net ]

Magnetic effect on CO 2 solubility in seawater: A possible link between geomagnetic field variations and climate

(August 2008)

Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 mT). The magnetic-field effect on CO2 solubility is twice as large, from which we surmise that geomagnetic field variations modulate the carbon exchange between atmosphere and ocean. A 1% reduction in magnetic dipole moment may release up to ten times more CO2 from the surface ocean than is emitted by subaerial volcanism.

25.09.2019 - 19:37 [ Ludwig Maximilian Universität München ]

Wenn ein Treibhausgas baden geht: Wie das Erdmagnetfeld unser Klima beeinflusst

(6. Oktober 2008)

Die Ergebnisse zeigten, dass selbst kleine Veränderungen des Magnetfelds die Löslichkeit von Gasen im Wasser verändern. „Wenn das Magnetfeld schwächer war, löste sich 15 Prozent weniger Luft im Wasser als bei einem stärkeren Magnetfeld“, erläutert Winklhofer. „Für Kohlendioxid war der beobachtete Effekt sogar doppelt so stark.“

03.08.2019 - 21:29 [ Alexandria Ocasio-Cortez, Abgeordnete des US Repräsentantenhauses / Twitter ]

Common ground I find with (some) GOP: – Ending needless war & curbing exploding military spending – Protecting civil liberties & privacy rights (I believe people shouldn’t be spied on by gov or corporations, incl your phone & habits) – Holding bad contractors accountable

05.06.2019 - 21:00 [ Ludwig Maximilian Universität München ]

Wenn ein Treibhausgas baden geht: Wie das Erdmagnetfeld unser Klima beeinflusst

(6. Oktober 2008)

Die Ergebnisse zeigten, dass selbst kleine Veränderungen des Magnetfelds die Löslichkeit von Gasen im Wasser verändern. „Wenn das Magnetfeld schwächer war, löste sich 15 Prozent weniger Luft im Wasser als bei einem stärkeren Magnetfeld“, erläutert Winklhofer. „Für Kohlendioxid war der beobachtete Effekt sogar doppelt so stark.“

05.06.2019 - 20:56 [ Geophysical Research Letters 35(16) / researchgate.net ]

Magnetic effect on CO 2 solubility in seawater: A possible link between geomagnetic field variations and climate

(August 2008)

Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 mT). The magnetic-field effect on CO2 solubility is twice as large, from which we surmise that geomagnetic field variations modulate the carbon exchange between atmosphere and ocean. A 1% reduction in magnetic dipole moment may release up to ten times more CO2 from the surface ocean than is emitted by subaerial volcanism.

08.10.2018 - 22:38 [ Space.com ]

Discovery of a Cosmic-Ray Source Is a Triumph of ‚Multimessenger Astronomy‘

(12.7.2018) As early as the 1780s, French physicist Charles-Augustin de Coulomb noticed that charged particles were neutralizing the electric charge of some of his experiments. In 1912, Austrian scientist Victor Hess first demonstrated that these particles were arriving from space.

08.10.2018 - 21:58 [ Arxiv.org ]

10 Dec 2008: The Antarctic Impulsive Transient Antenna Ultra-high Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight

This leads to strong motivations to detect the BZ neutrino flux: first, it is required by standard model physics, and thus its absence could signal new physics beyond the standard model.

12.08.2018 - 14:10 [ UN Tribune ]

UN Peacekeepers Observe IDF Interacting With Al Nusra in Golan

(4.12.2014) UN troops monitoring the 1974 ceasefire between Israel and Syria have witnessed interactions between members of the Israeli Defence Forces and the Al Nusra Front who have taken over a large part of the Golan Heights.

23.07.2018 - 14:57 [ Ban Ki Moon / Sicherheitsrat der Vereinten Nationen ]

Report of the Secretary-General on the United Nations Disengagement Observer Force for the period from 4 September to 19 November 2014

(1.12.2014) 5. In view of the heavy fighting, which was approaching close to the UNDOF headquarters at Camp Faouar and the mission’s positions in the central part of the area of separation, the Force Commander briefed both parties early in September on the Force’s plans to relocate its personnel and assets should the Nusra Front or other extremist fighters who posed a clear threat to the mission endanger the safety and security of the United Nations personnel. It should be noted here that from information posted on social media as well as in the course of its efforts to secure the release of the peacekeepers, the United Nations learned that its personnel had been taken and held by members of the Nusra Front. There were indications that the Nusra Front intended to detain additional UNDOF personnel and take from UNDOF more weapons and vehicles as opportunities arose. (…)

12. Crossing of the ceasefire line by civilians, primarily shepherds, was observed on an almost daily basis. On 24 October, United Nations observation post 73 observed 12 IDF soldiers who detained one civilian between the Alpha line and the Israeli technical fence south-east of the observation post and subsequently took him away. IDF informed UNDOF that they released the person within one hour at the same location. On 27 October, position 80 observed two IDF soldiers east of the technical fence returning from the direction of the Alpha line towards the technical fence. UNDOF observed IDF opening the technical fence gate and letting two individuals pass from the Bravo to the Alpha side. Following the evacuation of UNDOF personnel from position 85 on 28 August, UNDOF sporadically observed armed members of the opposition interacting with IDF across the ceasefire line in the vicinity of United Nations position 85.

23.07.2018 - 14:55 [ UN Tribune ]

UN Peacekeepers Observe IDF Interacting With Al Nusra in Golan

(4.12.2014) UN troops monitoring the 1974 ceasefire between Israel and Syria have witnessed interactions between members of the Israeli Defence Forces and the Al Nusra Front who have taken over a large part of the Golan Heights.