James Croll in Context: The Encounter between Climate Dynamics
... considered Croll's maximum eccentricity for the glacial period, “quite subordinate to geographical causes or the relative position of land and sea and abnormal excess of land in polar regions.”20 Darwin was much more enthusiastic than Lyell about the astronomical theory. He accepted it in part becau ...
... considered Croll's maximum eccentricity for the glacial period, “quite subordinate to geographical causes or the relative position of land and sea and abnormal excess of land in polar regions.”20 Darwin was much more enthusiastic than Lyell about the astronomical theory. He accepted it in part becau ...
Stratigraphic and Earth System Approaches to Defining the
... changes in orbital parameters and occasional bolide strikes, as well as by its own internal dynamics in which the biosphere is a critical component. Earth’s mean temperature is determined primarily by its energy balance [Feulner, 2012], including the key variables of solar insolation (increasing dur ...
... changes in orbital parameters and occasional bolide strikes, as well as by its own internal dynamics in which the biosphere is a critical component. Earth’s mean temperature is determined primarily by its energy balance [Feulner, 2012], including the key variables of solar insolation (increasing dur ...
Earth System
... Solar output varies with the sunspot cycle. Sunspot activity spikes every 9 to 11.5 years. Increased sunspots attend a decrease in solar output. ...
... Solar output varies with the sunspot cycle. Sunspot activity spikes every 9 to 11.5 years. Increased sunspots attend a decrease in solar output. ...
Rhodes Fairbridge and the idea that the solar system regulates the
... measure of the influence on the solar cycle by the planets. TSUI (2000) has found there are non-inertial Coriolis forces acting on the sun as a result of its barycentric motion. He conjectured that these would be sufficient to significantly modulate the cyclical rhythm of the solar dynamo. Noting th ...
... measure of the influence on the solar cycle by the planets. TSUI (2000) has found there are non-inertial Coriolis forces acting on the sun as a result of its barycentric motion. He conjectured that these would be sufficient to significantly modulate the cyclical rhythm of the solar dynamo. Noting th ...
Glacial Variability Over the Last Two Million Years: An Extended
... while late Pleistocene deglaciations more often skip one or two obliquity beats, corresponding to 80 or 120 Ka glacial cycles which, on average, give the "100 Ka variability. This continuous obliquity pacing indicates that the glacial theory can be simplified. An explanation for the "100 Ka glacial ...
... while late Pleistocene deglaciations more often skip one or two obliquity beats, corresponding to 80 or 120 Ka glacial cycles which, on average, give the "100 Ka variability. This continuous obliquity pacing indicates that the glacial theory can be simplified. An explanation for the "100 Ka glacial ...
An astronomical correspondence to the 1470 year cycle of abrupt
... The modelled RRA activity was compared to 5500 years of astronomical data based on solar and lunar declinations linked to the current perihelion-based Metonic lunation [Fig. 1], generated using planetarium software: NOVA 2.13, (Hand, 1989–1994) and SkyChart III (DeBenedictis, 1993–2004). Lunar nodal ...
... The modelled RRA activity was compared to 5500 years of astronomical data based on solar and lunar declinations linked to the current perihelion-based Metonic lunation [Fig. 1], generated using planetarium software: NOVA 2.13, (Hand, 1989–1994) and SkyChart III (DeBenedictis, 1993–2004). Lunar nodal ...
Earth`s Climate System
... • Widespread and steady decline in Arctic sea ice over last few decades. • Puts cold water into Arctic ocean – could disrupt the oceanic conveyor belt. • Worst case scenario: - Higher temps reduce annual volume of sea ice exposing more open water in Arctic ocean - Water has lower albedo which absorb ...
... • Widespread and steady decline in Arctic sea ice over last few decades. • Puts cold water into Arctic ocean – could disrupt the oceanic conveyor belt. • Worst case scenario: - Higher temps reduce annual volume of sea ice exposing more open water in Arctic ocean - Water has lower albedo which absorb ...
Northern Hemisphere glaciation and the evolution of Plio
... Received 29 July 2009; revised 3 December 2009; accepted 20 January 2010; published 4 August 2010. ...
... Received 29 July 2009; revised 3 December 2009; accepted 20 January 2010; published 4 August 2010. ...
Earth and the Moon
... the sun never sets may last for several months or longer depending on how close the location is to the North Pole. At the North Pole the length of day will last six months followed by a long night of equal time. As the Earth continues to move to the position indicated as September 23, the sun appear ...
... the sun never sets may last for several months or longer depending on how close the location is to the North Pole. At the North Pole the length of day will last six months followed by a long night of equal time. As the Earth continues to move to the position indicated as September 23, the sun appear ...
Decadal variations
... Regress observed A* anomaly against the most significant of these This allows us to reconstruct the earth’s albedo as seen from BBSO since 1983 ...
... Regress observed A* anomaly against the most significant of these This allows us to reconstruct the earth’s albedo as seen from BBSO since 1983 ...
The Climate of Middle Earth
... spheric turbulence, or eddies in the ocean. It is the representation of these sub-gridscale processes which brings uncertainty into climate modelling (the equations of fluid motion and thermodynamics themselves have been known and understood for several centuries). As well as the atmosphere and ocea ...
... spheric turbulence, or eddies in the ocean. It is the representation of these sub-gridscale processes which brings uncertainty into climate modelling (the equations of fluid motion and thermodynamics themselves have been known and understood for several centuries). As well as the atmosphere and ocea ...
Major Climate Feedback Processes Water Vapor Feedback Snow
... history (a faint young Sun). If Earth’s albedo and greenhouse effect remained unchanged at that time, Earth’s mean surface temperature would be well below the freezing point of water during a large portion of its 4.5 Byr history. That would result in a “snowball” Earth, which was not evident in ...
... history (a faint young Sun). If Earth’s albedo and greenhouse effect remained unchanged at that time, Earth’s mean surface temperature would be well below the freezing point of water during a large portion of its 4.5 Byr history. That would result in a “snowball” Earth, which was not evident in ...
PowerPoint Presentation - The Evergreen State College
... How do changes in phytoplankton species composition affect the rate of CO2 removal and DMS production? Can atmospheric CO2 be removed effectively by fertilizing oceans? Side effects? Is there a connection between lake levels and rainfall at Lake Victoria? (Boyd and Schatten, pp.115, 132-134; Curt St ...
... How do changes in phytoplankton species composition affect the rate of CO2 removal and DMS production? Can atmospheric CO2 be removed effectively by fertilizing oceans? Side effects? Is there a connection between lake levels and rainfall at Lake Victoria? (Boyd and Schatten, pp.115, 132-134; Curt St ...
Climate Science Overview pdf
... In Earth System Science, we study planet Earth as a system. Whenever we study any kind of system, we learn that it is made of parts. We also learn that the parts of the system connect in ...
... In Earth System Science, we study planet Earth as a system. Whenever we study any kind of system, we learn that it is made of parts. We also learn that the parts of the system connect in ...
Chapter 5. Brief history of climate: causes and mechanisms
... Since the beginning of Earth’s history, climate has varied on all timescales. Over millions of years, it has swung between very warm conditions, with annual mean temperatures above 10°C in polar regions and glacial climates in which the ice sheets covered the majority of the mid-latitude continents. ...
... Since the beginning of Earth’s history, climate has varied on all timescales. Over millions of years, it has swung between very warm conditions, with annual mean temperatures above 10°C in polar regions and glacial climates in which the ice sheets covered the majority of the mid-latitude continents. ...
Powerpoint - Steven J Phipps
... 1. Orbital changes - known as Milankovitch Cycles 2. Asteroid Impact (which wiped out the Dinosaurs) ...
... 1. Orbital changes - known as Milankovitch Cycles 2. Asteroid Impact (which wiped out the Dinosaurs) ...
PowerPoint Fill-in-the-Notes for Unit 2
... The Earth and the Sun Understanding Seasons Why are the days longer in some parts of the year? • The Earth’s axis is at an ___________________. • In about half of the Earth’s orbit, the tilt causes a region to face toward the sun for more hours than it faces away from the sun. • ___________________ ...
... The Earth and the Sun Understanding Seasons Why are the days longer in some parts of the year? • The Earth’s axis is at an ___________________. • In about half of the Earth’s orbit, the tilt causes a region to face toward the sun for more hours than it faces away from the sun. • ___________________ ...
CRT Science Review #8 Earth Science
... Standard: Atmospheric Processes and the Water Cycle - Earth systems have internal and external sources of energy, both of which create heat. Driven by sunlight and Earth’s internal heat, a variety of cycles connect and continually circulate energy and material through the components of the earth sys ...
... Standard: Atmospheric Processes and the Water Cycle - Earth systems have internal and external sources of energy, both of which create heat. Driven by sunlight and Earth’s internal heat, a variety of cycles connect and continually circulate energy and material through the components of the earth sys ...
3 - Environmental Intermediate
... The atmosphere is the name for a layer of gases that surround a body of sufficiently large mass. The gases are attracted by the gravity of the body, and held fast if gravity is sufficient (thaerefore mass must be large) and the atmosphere's temperature is low. Some planets (called gas giants) consis ...
... The atmosphere is the name for a layer of gases that surround a body of sufficiently large mass. The gases are attracted by the gravity of the body, and held fast if gravity is sufficient (thaerefore mass must be large) and the atmosphere's temperature is low. Some planets (called gas giants) consis ...
Daejeon, UN/ESA/NASA/JAXA Workshop, 20
... Supernova explosions and in Supernova remnants in our Galaxy) in the Heliosphere are determined by their interactions with magnetic fields frozen in solar wind and in coronal mass ejections (CME) with accompanied shock waves (produced big magnetic storms during their interactions with the Earth’s Ma ...
... Supernova explosions and in Supernova remnants in our Galaxy) in the Heliosphere are determined by their interactions with magnetic fields frozen in solar wind and in coronal mass ejections (CME) with accompanied shock waves (produced big magnetic storms during their interactions with the Earth’s Ma ...
main factors influencing climate change: a review
... Introduction. Climate changes and global warming of our planet are one of the most debated topics in Earth, Atmospheric and Space sciences in the last 30 years. In 1975 Broecker [1 ] expressed the idea of global warming and it was accepted by many scientists. Some of them believe that climate chang ...
... Introduction. Climate changes and global warming of our planet are one of the most debated topics in Earth, Atmospheric and Space sciences in the last 30 years. In 1975 Broecker [1 ] expressed the idea of global warming and it was accepted by many scientists. Some of them believe that climate chang ...
Obliquity pacing of the late Pleistocene glacial terminations
... From a physical standpoint, support for the obliquity control hypothesis also comes from the fact that maxima in obliquity cause annual average insolation anomalies of up to 10W/m2 at high latitudes. Furthermore, the annual average and seasonal insolation redistributions associated with obliquity ar ...
... From a physical standpoint, support for the obliquity control hypothesis also comes from the fact that maxima in obliquity cause annual average insolation anomalies of up to 10W/m2 at high latitudes. Furthermore, the annual average and seasonal insolation redistributions associated with obliquity ar ...