A 15-year Simulation of the Clear-Sky Greenhouse Effect Using the ECMWF Reanalyses: Fluxes and Comparisons with ERBE.
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| Title: | A 15-year Simulation of the Clear-Sky Greenhouse Effect Using the ECMWF Reanalyses: Fluxes and Comparisons with ERBE. |
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| Authors: | Slingo, A., Pamment, J.A., Webb, M.J. |
| Source: | Journal of Climate. 4/1/98, Vol. 11 Issue 4, p690. 19p. 2 Charts, 18 Graphs, 18 Maps. |
| Subjects: | Greenhouse effect, Weather forecasting |
| Geographic Terms: | Europe |
| Abstract: | Results are presented from the project Clear-sky Longwave from ERA (CLERA), in which simulations were performed of clear-sky longwave fluxes and heating rates for the period 1979-93, based on data from the European Centre for Medium-Range Weather Forecasts Re-Analysis project (ERA). This paper presents selected results from CLERA and compares the clear-sky outgoing longwave radiation (OLR) with data from the Earth Radiation Budget Experiment (ERBE). Over much of the globe, especially over the oceans, the clear-sky OLR from CLERA is within the expected uncertainty in the ERBE data of 65 W m 22 . Elsewhere, there are larger differences and to study these the ERA data are compared with independent sources of information: surface synoptic observations of screen-level temperatures and retrievals of the total column moisture and upper-tro-pospheric humidity from satellite data. Over land, the largest clear-sky OLR differences occur at high latitudes in winter and these can be explained by the fact that the ERA surface temperatures are too low in these regions. However, for many other regions over land there was no obvious explanation for the clear-sky OLR differences. Over the oceans, the clear-sky OLR differences in the Tropics are consistent with known systematic biases in ERBE, the most important consequence of which is that the ERBE clear-sky OLR is too high in convective regions such as the ITCZ. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Climate is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 5574045 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A 15-year Simulation of the Clear-Sky Greenhouse Effect Using the ECMWF Reanalyses: Fluxes and Comparisons with ERBE. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Slingo%2C+A%2E%22">Slingo, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Pamment%2C+J%2EA%2E%22">Pamment, J.A.</searchLink><br /><searchLink fieldCode="AR" term="%22Webb%2C+M%2EJ%2E%22">Webb, M.J.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Climate%22">Journal of Climate</searchLink>. 4/1/98, Vol. 11 Issue 4, p690. 19p. 2 Charts, 18 Graphs, 18 Maps. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Greenhouse+effect%22">Greenhouse effect</searchLink><br /><searchLink fieldCode="DE" term="%22Weather+forecasting%22">Weather forecasting</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Europe%22">Europe</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Results are presented from the project Clear-sky Longwave from ERA (CLERA), in which simulations were performed of clear-sky longwave fluxes and heating rates for the period 1979-93, based on data from the European Centre for Medium-Range Weather Forecasts Re-Analysis project (ERA). This paper presents selected results from CLERA and compares the clear-sky outgoing longwave radiation (OLR) with data from the Earth Radiation Budget Experiment (ERBE). Over much of the globe, especially over the oceans, the clear-sky OLR from CLERA is within the expected uncertainty in the ERBE data of 65 W m 22 . Elsewhere, there are larger differences and to study these the ERA data are compared with independent sources of information: surface synoptic observations of screen-level temperatures and retrievals of the total column moisture and upper-tro-pospheric humidity from satellite data. Over land, the largest clear-sky OLR differences occur at high latitudes in winter and these can be explained by the fact that the ERA surface temperatures are too low in these regions. However, for many other regions over land there was no obvious explanation for the clear-sky OLR differences. Over the oceans, the clear-sky OLR differences in the Tropics are consistent with known systematic biases in ERBE, the most important consequence of which is that the ERBE clear-sky OLR is too high in convective regions such as the ITCZ. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Climate is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1175/1520-0442(1998)011<0690:AYSOTC>2.0.CO;2 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 690 Subjects: – SubjectFull: Greenhouse effect Type: general – SubjectFull: Weather forecasting Type: general – SubjectFull: Europe Type: general Titles: – TitleFull: A 15-year Simulation of the Clear-Sky Greenhouse Effect Using the ECMWF Reanalyses: Fluxes and Comparisons with ERBE. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Slingo, A. – PersonEntity: Name: NameFull: Pamment, J.A. – PersonEntity: Name: NameFull: Webb, M.J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: 4/1/98 Type: published Y: 1998 Identifiers: – Type: issn-print Value: 08948755 Numbering: – Type: volume Value: 11 – Type: issue Value: 4 Titles: – TitleFull: Journal of Climate Type: main |
| ResultId | 1 |
