Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Nowcasting SAF - Retrieving Cloud Top Temperature and Height in Semi-transparent and Fractional Cloudiness using AVHRR
SMHI, Core Services.
SMHI, Research Department, Atmospheric remote sensing.ORCID iD: 0000-0003-2138-4325
2001 (English)Report (Other academic)
Abstract [en]

Cloud top temperature and height estimates obtained from AVHRR infrared imagery require a correction for semi-transparency when cirrus layers are present. In this work we investigated the possibility of using the 11 μm and12 μm window channel brightness temperatures for the correction. We developed software which implements a method based on the work of Inoue (1985) and Derrien et al. (1988). In this method the cloud top temperature is derived for each small image segment by fitting a curve to . a twodimensional histogram of the segment, formed by using the brightness temperatureT ( 11 μm) and the brightness temperature diff erence T ( 11 μm) - T(l2μm). By extrapolating the model fit of the distribution to the opaque limit, a temperature estimate can be assigned to the semi-transparent cloud pixels, thereby replacing the measured brightness temperature which observes the combined background radiation and cloud emission. In this work, in addition to implementing data processing with the histogram based correction, we also developed a graphical user interface for testing the method, in order to provide a tool for the overall evaluation of the product.

Place, publisher, year, edition, pages
SMHI , 2001. , p. 66
Series
Meteorology, ISSN 0283-7730 ; 100
Keywords [sv]
meteorologi, historia, atmosfäriska fenomen, väder, förutsägelse, metod
National Category
Meteorology and Atmospheric Sciences
Research subject
Meteorology
Identifiers
URN: urn:nbn:se:smhi:diva-2329Local ID: Meteorologi, Rapporter, Serie MeteorologiOAI: oai:DiVA.org:smhi-2329DiVA, id: diva2:947622
Available from: 2001-05-13 Created: 2016-07-08 Last updated: 2018-09-27Bibliographically approved

Open Access in DiVA

fulltext(2230 kB)7 downloads
File information
File name FULLTEXT01.pdfFile size 2230 kBChecksum SHA-512
b7e232cd8ecc9fe1c437778380c93311fcbc25599eea5b7cc3f693cb1a12b1e911388c3f85da9b62b1c3c4a734d5e2fd8760974344678ed527260cf46ee78f58
Type fulltextMimetype application/pdf

Authority records BETA

Dybbroe, AdamThoss, Anke

Search in DiVA

By author/editor
Dybbroe, AdamThoss, Anke
By organisation
Core ServicesAtmospheric remote sensing
Meteorology and Atmospheric Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 7 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 56 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.8
|