東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Relations between cloud condensation...

Shinozuka, Yohei.

Linked to FindBook

Google Book

Amazon

博客來

Relations between cloud condensation nuclei and aerosol optical properties relevant to remote sensing.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Relations between cloud condensation nuclei and aerosol optical properties relevant to remote sensing./
Author:	Shinozuka, Yohei.
Description:	202 p.
Notes:	Adviser: Antony D. Clarke.
Contained By:	Dissertation Abstracts International69-04B.
Subject:	Atmospheric Sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3311903
ISBN:	9780549596271

Relations between cloud condensation nuclei and aerosol optical properties relevant to remote sensing.
Shinozuka, Yohei.

Relations between cloud condensation nuclei and aerosol optical properties relevant to remote sensing. - 202 p.

Adviser: Antony D. Clarke.

Thesis (Ph.D.)--University of Hawai'i at Manoa, 2008.

All of these four features are weaker over USA and the surrounding oceans than in Mexico.

ISBN: 9780549596271Subjects--Topical Terms:

1019179
Atmospheric Sciences.

Relations between cloud condensation nuclei and aerosol optical properties relevant to remote sensing.
LDR:03309nam 2200313 a 45 001 939989
005 20110517
008 110517s2008 ||||||||||||||||| ||eng d
020 $a 9780549596271
035 $a (UMI)AAI3311903
035 $a AAI3311903
040 $a UMI $c UMI
100 1 $a Shinozuka, Yohei. $3 1264097
245 1 0 $a Relations between cloud condensation nuclei and aerosol optical properties relevant to remote sensing.
300 $a 202 p.
500 $a Adviser: Antony D. Clarke.
500 $a Source: Dissertation Abstracts International, Volume: 69-04, Section: B, page: 2174.
502 $a Thesis (Ph.D.)--University of Hawai'i at Manoa, 2008.
520 $a All of these four features are weaker over USA and the surrounding oceans than in Mexico.
520 $a Clouds affect the Earth's energy balance by reflecting incoming sunlight and trapping outgoing heat. It has been hypothesized that various cloud properties (e.g., reflectivity, coverage, lifetime and precipitation efficiency) partly depend on the number concentration of aerosols that serve as cloud condensation nuclei (CCN) during cloud growth. The CCN number varies widely throughout the world over time, and is poorly known. Therefore, a means to convert satellite derived aerosol optical properties to CCN concentration would help evaluate this important indirect effect of aerosols on radiation balance. In order to assess whether remote sensing of CCN is feasible, this dissertation explores the relationships among aerosol size distribution, chemical composition and optical properties measured during aircraft experiments over USA and Mexico.
520 $a The aircraft data illuminate four reasons why remote sensing of CCN concentration can potentially achieve a small relative error (<20%) over Mexico. First, many pollution particles are large enough to significantly affect light extinction. They even dominate it in absence of dust. Consequently, the correlation between extinction and CCN number is high, once the extinction due to dust is excluded using the wavelength dependence of extinction. Second, the ambient humidity is usually low, which reduces the error in the estimated response of particle extinction to humidity changes. Third, because many CCN contain black carbon, light absorption also provides a measure of the CCN concentration. The fourth reason is pertinent to the chemical properties of CCN. The organic fraction of volatile mass of submicron particles (OMF) was found to be anti-correlated with the wavelength dependence of extinction. This anti-correlation provides a potential tool for remote-sensing not only OMF but also the CCN activity, if the relationship between these two properties is tight and known. The concurrent aircraft measurement of aerosol size distribution suggests that the observed anti-correlation reflects preferential uptake of anion (sulfate and nitrate) by coarse dust. This chemical action may significantly reduce solubility of accumulation-mode particles and, consequently, CCN concentration.
590 $a School code: 0085.
650 4 $a Atmospheric Sciences. $3 1019179
650 4 $a Biology, Oceanography. $3 783691
650 4 $a Remote Sensing. $3 1018559
690 $a 0416
690 $a 0725
690 $a 0799
710 2 $a University of Hawai'i at Manoa. $3 1017511
773 0 $t Dissertation Abstracts International $g 69-04B.
790 $a 0085
790 1 0 $a Clarke, Antony D., $e advisor
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3311903