AtqasukBarrow

SHEBA

Eureka

Alert

Ny’Alesund

Tiksi

Summit

Clouds Properties Across the Arctic Basin from Surface and Satellite

Measurements –An Existing Arctic Observing Network

Matthew Shupe, Von WaldenUniv. of Colorado Univ. of Idaho

AON PIs Meeting, March 2008

Project Status• Cloud macrophysical property data sets

Cloud occurrence fraction and boundariesBarrow, Atqasuk, Eureka, Alert, Summit, Ny’Alesund,

SHEBACurrently in QA/QC

• Cloud microphysical property data sets Water content & particle size for liquid and iceSHEBA and Barrow underwayEureka in future

• Studies1) What is a Cloud?2) Cloud occurrence across the Arctic Basin3) Arctic liquid water clouds

Fra

ctio

n [%

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Coordination and Integration

•Programmatic Coordination (objectives, data sharing):IASOA, NOAA, DOE ARM, CANDAC

•Scientific Coordination (data sharing and research):Ed Eloranta (U. Wisc), cloud identificationPavlos Kollias (McGill), cloud identificationDavid Turner (U. Wisc), cloud microphysicsMasataka Shiobara (NIPR, Japan), Ny’Alesund observationsSandy Starkweather (Polar Field), Summit observations

•Satellite Community (intercomparisons):U. Wisc PEATE – Cloud propertiesCloudSat/Calipso – Cloud fraction and phase

•Model Community (evaluation):ERA40, NARR via collaborations with NOAA, U. Colorado

Future Work Improved microphysics algorithms Dataset QA/QC Release data sets CADIS archive Satellite observations at Arctic Observatories Data analysis Documenting Arctic clouds Model/Reanalysis evaluations