Sentences with phrase «surface observations go»

While land surface observations go back hundreds of years in a few places, data of sufficient coverage for estimating global temperature have been available only since the end of the 19th century.

Not exact matches

Surface temperature observations become sparser going back further in time, however, and the most widely used datasets only go back to 1880 or 1850.
This is crucial as this is all we are going to get for exo - earths: we will not be able to build large enough telescopes to take detailed images of the surfaces of exoplanets — but we will still be able to learn about their atmospheres (and surfaces) from time - resolved observations!
We're seeing a lot of energy both with atmospheric observations and new observations of the land's surface and I hope we're going to continue to see progress.
If you have seen Mr. Leigh's work in Happy - Go - Lucky or Vera Drake, you understand that his films can be simplistic on the surface, while carrying multiple layers of commentary and observations.
His world is made up of hard evidence and uncontestable facts, his observations and conclusions unsullied by personal feelings, until novelist Cullin goes behind the cold, unsentimental surface to reveal for the first time the inner world of an obsessively private man.
The observation, which connects Arctic stratospheric ozone and variation in winds and sea - surface temperatures in the tropics, could help forecasters better understand what's going on.
As others have noted, the IPCC Team has gone absolutely feral about Salby's research and the most recent paper by Dr Roy Spencer, at the University of Alabama (On the Misdiagnosis of Surface Temperature Feedbacks from Variations in Earth's Radiant Energy Balance), for one simple reason: both are based on empirical, undoctored satellite observations, which, depending on the measure required, now extend into the past by up to 32 years, i.e. long enough to begin evaluating real climate trends; whereas much of the Team's science in AR4 (2007) is based on primitive climate models generated from primitive and potentially unreliable land measurements and proxies, which have been «filtered» to achieve certain artificial realities (There are other more scathing descriptions of this process I won't use).
According to NOAA's 2012 Arctic Report Card, the duration of melting at the surface of the ice sheet in summer 2012 was the longest since satellite observations began in 1979, and the total amount of summer melting was nearly double the previous record, set in 2010 (satellite records of melting go back to 1979.)
I would assume that all that happens is that the transport of heat is changed in the model: if surface air temps in the model are too high compared to observations, more heat is made to go down into the ocean, and vice versa.
In the lower atmosphere, the available data points to increasing water vapor content, but because of large variations in local humidity from day to night, from day to day, and from season to season, no - one currently knows exactly how much more water vapor is going into the air (IPCC Working Group 1 Assessment Report 4, Chapter 3, «Observations: Surface and Atmospheric Climate Change», page 273).
The ULab approach advocates resisting the strong temptation to move immediately to solutions based on surface level observations but to take time instead to go deeper, to explore the underlying root causes and to gain understanding and empathy for the experience of human beings who participate in the system.
a b c d e f g h i j k l m n o p q r s t u v w x y z