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Author: Alberta. Environmental Sciences Division. Science and Technology Branch
Publisher: The Branch
ISBN: 9780778513940
Category : Climatic changes
Languages : en
Pages : 57
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Book Description
Author: Alberta. Environmental Sciences Division. Science and Technology Branch
Publisher: The Branch
ISBN: 9780778513940
Category : Climatic changes
Languages : en
Pages : 57
Get Book Here
Book Description
Author: Raymond K. W. Wong
Publisher: Resource Technologies Department, Alberta Research Council
ISBN:
Category : Alberta
Languages : en
Pages : 94
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309183723
Category : Science
Languages : en
Pages : 101
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Book Description
An overall increase in global-mean atmospheric temperatures is predicted to occur in response to human-induced increases in atmospheric concentrations of heat-trapping "greenhouse gases." The most prominent of these gases, carbon dioxide, has increased in concentration by over 30% during the past 200 years, and is expected to continue to increase well into the future. Other changes in atmospheric composition complicate the picture. In particular, increases in the number of small particles (called aerosols) in the atmosphere regionally offset and mask the greenhouse effect, and stratospheric ozone depletion contributes to cooling of the upper troposphere and stratosphere. Many in the scientific community believe that a distinctive greenhouse-warming signature is evident in surface temperature data for the past few decades. Some, however, are puzzled by the fact that satellite temperature measurements indicate little, if any, warming of the lower to mid-troposphere (the layer extending from the surface up to about 8 km) since such satellite observations first became operational in 1979. The satellite measurements appear to be substantiated by independent trend estimates for this period based on radiosonde data. Some have interpreted this apparent discrepancy between surface and upper air observations as casting doubt on the overall reliability of the surface temperature record, whereas others have concluded that the satellite data (or the algorithms that are being used to convert them into temperatures) must be erroneous. It is also conceivable that temperatures at the earth's surface and aloft have not tracked each other perfectly because they have responded differently to natural and/or human-induced climate forcing during this particular 20-year period. Whether these differing temperature trends can be reconciled has implications for assessing: how much the earth has warmed during the past few decades, whether observed changes are in accord with the predicted response to the buildup of greenhouse gases in the atmosphere based on model simulations, and whether the existing atmospheric observing system is adequate for the purposes of monitoring global-mean temperature. This report reassesses the apparent differences between the temperature changes recorded by satellites and the surface thermometer network on the basis of the latest available information. It also offers an informed opinion as to how the different temperature records should be interpreted, and recommends actions designed to reduce the remaining uncertainties in these measurements.
Author: Timothy Otto Goos
Publisher: Downsview, Ont. : Centre climatologique canadien
ISBN: 9780662570288
Category : Alberta
Languages : en
Pages : 19
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Book Description
Author: Matthew Collins
Publisher: Frontiers Media SA
ISBN: 2889741397
Category : Science
Languages : en
Pages : 178
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Book Description
Author:
Publisher:
ISBN: 9780660065090
Category :
Languages : en
Pages : 2
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Book Description
"Daily climate data from Olds, obtained from Environment Canada's Adjusted and Homogenized Canadian Climate Data, was used to calculate the monthly temperature values. Seasonal temperature values winter (December, January, February), spring (March, April, May), summer (June, July, August) and fall (September, October, November) were calculated by averaging the monthly data. In addition to seasonal temperature data, the interquartile range of projected change in seasonal temperature (°C) based on CMIP5 General Circulation Models (GCMs) for low (RCP2.5), medium (RCP4.5) and high (RCP8.5) emission scenarios is also shown"--Page [1].
Author: Dawn M. Thielke
Publisher:
ISBN:
Category : Discriminant analysis
Languages : en
Pages : 148
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Book Description
Author: Samuel S. Shen
Publisher: Division
ISBN: 9780778505891
Category : Atmospheric temperature
Languages : en
Pages : 39
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Book Description
Author: Alberta. Alberta Environment
Publisher:
ISBN: 9780778539391
Category : Alberta
Languages : en
Pages : 33
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Book Description
This document presents information concerning the Alberta Climate Model, whose purpose is to provide a process for detailed description of Alberta climate, both for current use, and as a baseline from which to estimate impacts of changes suggested for future climates. The Model combines long-term records from weather stations with physiographic descriptors of station locations to allow the interpolation and extrapolation of values for climatic variables along gradients. Although built on a base of climatic data collected largely in agricultural environments, the Model facilitates estimation of values for climatic variables in areas poorly represented by climatic stations.--Includes text from document.
Author: Barry Goodison
Publisher: Inland Waters Directorate
ISBN:
Category : Glaciers
Languages : en
Pages : 40
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Book Description
"As part of the I.H.D. glacier research program, this study investigates some basic hydrometeorological relationships for Peyto Glacier, Alberta, and develops and tests some auto regressive models applicable to various climate and runoff events of 1968 and 1969"--Abstract.
