The Effect of Brokenness on Cloud-Climate Sensitivity Export

@article{Harshvardhan1982, abstract = {A study has been made of the effect of brokenness on the infrared and albedo feedback of clouds in climate models using a simplified treatment of broken cloudiness. It is shown that the individual feedback terms computed using the plane-parallel assumption differ markedly from the computations performed for a regular array of cuboidal clouds. If the cloudiness changes such that clear areas become cloudy but the nature of the broken cloud field remains unchanged, then both the feedbacks are magnified, the infrared more so than the albedo. However, if individual elements in the cloud field are increased horizontally in a constrained area, the feedbacks can be enhanced or diminished depending on the cloud fraction and aspect ratio of the elements. It is also shown that, in the global average, the ratio of the change in outgoing infrared flux to global albedo, as deduced from satellite measurements, will be larger than model simulators using planiform clouds.}, author = {Harshvardhan}, citeulike-article-id = {1654141}, citeulike-linkout-0 = {http://dx.doi.org/10.1175/1520-0469(1982)039%3C1853:TEOBOC%3E2.0.CO;2}, citeulike-linkout-1 = {http://ams.allenpress.com/perlserv/?request=get-document&page=1853&volume=039&issn=0022-4928&issue=08}, doi = {10.1175/1520-0469(1982)039%3C1853:TEOBOC%3E2.0.CO;2}, journal = {Journal of the Atmospheric Sciences}, keywords = {climate, clouds}, number = {8}, pages = {1853--1861}, posted-at = {2007-09-14 04:13:02}, priority = {2}, title = {The Effect of Brokenness on Cloud-Climate Sensitivity}, url = {http://dx.doi.org/10.1175/1520-0469(1982)039%3C1853:TEOBOC%3E2.0.CO;2}, volume = {39}, year = {1982} }

TY - JOUR ID - Harshvardhan1982 L3 - citeulike-article-id:1654141 N2 - A study has been made of the effect of brokenness on the infrared and albedo feedback of clouds in climate models using a simplified treatment of broken cloudiness. It is shown that the individual feedback terms computed using the plane-parallel assumption differ markedly from the computations performed for a regular array of cuboidal clouds. If the cloudiness changes such that clear areas become cloudy but the nature of the broken cloud field remains unchanged, then both the feedbacks are magnified, the infrared more so than the albedo. However, if individual elements in the cloud field are increased horizontally in a constrained area, the feedbacks can be enhanced or diminished depending on the cloud fraction and aspect ratio of the elements. It is also shown that, in the global average, the ratio of the change in outgoing infrared flux to global albedo, as deduced from satellite measurements, will be larger than model simulators using planiform clouds. IS - 8 JF - Journal of the Atmospheric Sciences EP - 1861 TI - The Effect of Brokenness on Cloud-Climate Sensitivity VL - 39 SP - 1853 KW - climate KW - clouds AU - Harshvardhan PY - 1982/// UR - http://dx.doi.org/10.1175/1520-0469(1982)039%3C1853:TEOBOC%3E2.0.CO;2 ER -