The Occurrence and Properties of Long-Lived Liquid-Bearing Clouds over the Greenland Ice Sheet and Their Relationship to the North Atlantic Oscillation

Edwards-Opperman, Jonathan; Cavallo, Steven; Turner, David

doi:10.1175/jamc-d-17-0230.1

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

The Occurrence and Properties of Long-Lived Liquid-Bearing Clouds over the Greenland Ice Sheet and Their Relationship to the North Atlantic Oscillation

2018
By Edwards-Opperman, Jonathan ; Cavallo, Steven ; Turner, David
Source: Journal of Applied Meteorology and Climatology, 57(4), 921-935.

[PDF-1.96 MB]

Details You May Also Like

Details:

Journal Title:

Journal of Applied Meteorology and Climatology
Personal Author:

Edwards-Opperman, Jonathan ; Cavallo, Steven ; Turner, David

Edwards-Opperman, Jonathan ; Cavallo, Steven ; Turner, David Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; GSL (Global Systems Laboratory) ; CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; GSL (Global Systems Laboratory) ; CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

Stratiform liquid-bearing clouds (LBCs), defined herein as either pure liquid or mixed-phase clouds, have a large impact on the surface radiation budget across the Arctic. LBCs lasting at least 6 h are observed at Summit, Greenland, year-round with a maximum in occurrence during summer. Mean cloud-base height is below 1 km for 85% of LBC cases identified, 59% have mean liquid water path (LWP) values between 10 and 40 g m(-2), and most produce sporadic light ice-phase precipitation. During their occurrence, the atmosphere above the ice sheet is anomalously warm and moist, with southerly winds observed over much of the ice sheet, including at Summit. LBCs that occur when the North Atlantic Oscillation (NAO) is in the negative phase correspond to strong ridging centered over the Greenland Ice Sheet (GIS), allowing for southwesterly flow over the GIS toward Summit. During the positive phase of the NAO, the occurrence of LBCs corresponds to a cyclone located off the southeastern coast of the ice sheet, which leads to easterly-to-southeasterly flow toward Summit. Furthermore, air parcels at Summit frequently originate from below the elevation of Summit, indicating that orographic lift along the ice sheet is a factor in the occurrence of LBCs at Summit. LBCs are more frequently observed during the negative NAO, and both the LWP and precipitation rate are larger in LBCs occurring during this phase. Mean LWP in LBCs occurring during the negative NAO is 15 g m(-2) larger than in LBCs occurring during the positive phase.
Source:

Journal of Applied Meteorology and Climatology, 57(4), 921-935.
DOI:

https://doi.org/10.1175/jamc-d-17-0230.1
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:9e19675e3e0894eaf1e13f0a489c04e34b662d156ed3c605593546a9e044163d
Download URL:

https://repository.library.noaa.gov/view/noaa/25542/noaa_25542_DS1.pdf
File Type:

No Additional Files

More +

The Occurrence and Properties of Long-Lived Liquid-Bearing Clouds over the Greenland Ice Sheet and Their Relationship to the North Atlantic Oscillation

Details:

Supporting Files

You May Also Like