• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Research centres and projects
  • Nansen Environmental and Remote Sensing Center (NERSC)
  • View Item
  •   Home
  • Research centres and projects
  • Nansen Environmental and Remote Sensing Center (NERSC)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Formulation of the planetary boundary layer feedback in the Earth´s climate system

Esau, Igor N.
Journal article
Thumbnail
View/Open
Esau_2008_Computational_Technologies_v13n3pp90_103_Formulation_PBL_feedback_scanned.pdf (2.735Mb)
URI
https://hdl.handle.net/1956/3070
Date
2008
Metadata
Show full item record
Collections
  • Nansen Environmental and Remote Sensing Center (NERSC) [62]
Abstract
Recent publications have revealed that the state-of-the-art climate models are probably not sensitive enough to observed changes in the surface air temperature. This fact calls for the search of feedback mechanisms making the real climate more sensitive, especially in high latitudes, than the modeled one. A hypothesis, proposed in this study, relates the higher climate sensitivity to physics of the turbulent exchange in the planetary boundary layer (PBL). Assuming certain simplifications, this hypothesis can be developed to obtain analytical relationships for the climate sensitivity due to the PBL-feedback. To obtain those relationships, a new insight from Zilitinkevich et al. studies has been utilized. The analysis paradoxically discovers that stably stratified PBL may respond on the global warming by increase as well as by decrease of the surface air temperature. Another important outcome is a prediction that the mean daily minimum temperature, and especially temperatures in long-lived stably stratified PBL, are more sensitive to the global warming than the mean daily maximum temperature. This fact explains, at least partially, empirically observed asymmetry in the diurnal temperature trends and almost global reduction of the diurnal temperature range.
Publisher
Institute of Computational Technologies SB RAS, Novosibirsk
Journal
Computational Technologies

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit