This slow decline in the 10 kyr after the initial peak is in contrast to the slowly increasing CO2 levels in the Holocene and the even slower increase in MIS 11, despite the similar
orbital configuration of these three periods.
Such discoveries can allow us to determine
the orbital configuration of the planetary system, among other things.
Not exact matches
BFR in fully reusable
configuration, without any
orbital refueling, we expect to have a payload capability
of 150 tons to low - Earth orbit, and that compares to about 30 for Falcon Heavy, which is partially reusable.
The Arctic took another 3,000 - 4,000 years to warm this much, primarily because
of the fact that the Northern Hemisphere had huge ice sheets to buffer warming, and the fact that changes in ocean currents and Earth's
orbital configuration accelerated warming in the south.
«As we move forward and continue shaping the future
of magnetospheric physics, the global picture
of substorms and other important phenomena will become clearer as more spacecraft are deployed using innovative
orbital configurations and instrumentation.»
In some cases, these were due to a different
orbital configuration, or different levels
of greenhouse gases, or even different world geography (lower mountain ranges, ocean seaways altered, no polar ice sheets etc).
Test simulations
of the orbits
of the three planets around 61 Virginis suggest that the planetary system's
orbital configuration is dynamically stable because
of low
orbital eccentricities for at least 365 million years.
However, the
orbital configuration probably has been stable for much longer given the estimated system age
of 6.3 to 9.0 billion years (Vogt et al, 2009).
In fact, the similarity in the orbits found for Sedna, 2012 VP113 and a few other objects near the edge
of the Kuiper belt suggests that an unknown massive perturbing body may be shepherding these objects into these similar
orbital configurations.
Tied into this is the issue
of sensitivity, that certain methods are more sensitive to certain masses,
orbital distances, or
configurations of the system.
[Response: Similar to your first point — coherent statistics over time periods, robust patterns
of teleconnections, process by process similarities, coherent emergent properties, quantitative matches in response to large perturbations (volcanoes,
orbital forcing, continental
configurations etc.).
This supported
orbital forcing
of the ice ages and led to speculation that another ice age was inevitable as the planet moved toward the corresponding
configuration.
In some cases, these were due to a different
orbital configuration, or different levels
of greenhouse gases, or even different world geography (lower mountain ranges, ocean seaways altered, no polar ice sheets etc).
Most
of that seems to have warmed up by around 11,000 years ago, at which point temperatures in the mid to high latitude Northern Hemisphere were actually warmer (because
of the
orbital configuration).
The main reason for this warmer climate was an increased amount
of energy from the Sun being received at high northern latitudes due to Earth's
orbital configuration, plus Earth had an increased capacity to absorb heat due to vegetation changes and reduced ice and snow cover.
Some climate models
of the Last Interglacial suggest that a high - index state
of the North Atlantic Oscillation (NAO) was favoured due to the
configuration of orbital parameters.
With a significantly different
orbital configuration over the coming centuries it can not be expected that the behaviour
of the NAO and AMOC would be similar to that during the Last Interglacial.
Palaeoclimate studies show that differences in the manner in which the Earth orbited the Sun during the Last Interglacial are sufficient to explain the higher temperatures over most parts
of the Northern Hemisphere, particularly due to greater axial tilt and eccentricity compared with the present day
orbital configuration.
Within the framework
of ODP - 977A data, this
orbital configuration suggests that the present warm period could be more prone to abrupt oscillations than MISs 5 and 7.
Given that current low
orbital eccentricity will persist over the next tens
of thousand years, the effects
of precession are minimised, and extremely cold northern summer
orbital configurations like that
of the last glacial initiation at 116 ka will not take place for at least 30 kyr (Box 6.1).