A study on Emission Mechanism of Biogenic Sulfur from the Ocean by using Remoto Sensing and its influence to Global Climate Change

遥感研究海洋生物硫排放机制及其对全球气候变化的影响

基本信息

批准号：
10480129
负责人：
TANAKA Shigeru
金额：
$ 6.08万
依托单位：
Keio University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10480129/
关键词：
Biogenic Sulfur Emission Mechanism from the Ocean Remoto Sensing Dimehtyl Sulfide Carbonyl Sulfide Influence to Global Climate Change Methane Sulfuric Acid メタンスルホン酸

项目摘要

Marine biogenic sulfur compounds, DMS (CHィイD23ィエD2SCHィイD23ィエD2), and MeSH(CHィイD23ィエD2SH), are emitted from the sea and oxidized to sulfate aerosol. It is considered to act as CCN (Cloud Condensation Nuclei). Therefore, DMS and MeSH have influence on the global climate change. COS is also a main source of sulfur aerosol in the stratosphere. These sulfur compounds relate to DMSP ((CHィイD23ィエD2)ィイD22ィエD2SィイD1+ィエD1CHィイD22ィエD2CHィイD22ィエD2COOィイD1-ィエD1) and DMSO (CHィイD23ィエD2SOCHィイD23ィエD2) in the ocean and react with radicals to be oxidized to sulfate in the atmosphere. In this study, two subjects shown in the following were investigated to understand the biogenic sulfur cycle. 1) Development of automatical monitoring system for sulfur compounds in the environment, 2) Understanding of behavior of biogenic sulfur compounds in the marine environment from the results of field measurement.Our monitoring system consists of two parts; cold trap (0.5g of Chromosorb 107 was packed in glass tube) and gas … More chromatograph with flame photometric detector. Sulfur compounds in the seawater and air were concentrated into the cold trap, and then they were injected into GC and determined by FPD. As all analytical processes were controlled by a sequencer, this system can successively analyze sulfur compounds both in the seawater and marine air at one hour interval. By using our monitoring system, field measurements were carried out in many oceanic areas; Mikawa Bay (Saku Island, 1992-1999), Pacific 0cean, Indian Ocean, Equatorial Ocean, Arctic (Research vessel "HAKUHO-MARU",1992, 1993, 1994, 1996, 1997, "Mirai" 1999) and so on. From the field measurements, many significant information about sulfur compounds in the marine environment was obtained. The mean DMS, COS, MeSH concentration in the seawater were 511ng/L(n=1014), 88ng/L(n=1053), 150ng/L(n=193) for the coastal area and 69ng/L(n=1146), 19ng/L(n=519), 15ng/L(n=15) for the open sea, respectively. Each concentration of sulfur compounds in the seawater was highly correlated with the marine primary productivity. Less

海洋生物生物硫化合物，DMS（CHII D23E D2SCHII D23E D2）和网状（CHII D23E D2SH）从海洋中排放并氧化至硫酸盐气溶胶。它被认为充当CCN（云凝结核）。因此，DMS和网格对全球气候变化有影响。 COS也是平流层中硫气溶胶的主要来源。这些硫化合物与DMSP（（CHII D23E D2）II D22SII D1+II D1CHI D22CHI D22CHI D22COO D2COO D2COO D1-II D1）和DMSO（CHII D23E D2）在大洋中，并与辐射氧化为氧化剂，并与氧化氧化剂反应。在这项研究中，研究了以下两名受试者，以了解生物硫周期。 1）开发环境中硫化合物的自动监测系统，2）从现场测量结果中了解海洋环境中生物硫化合物的行为。您的监测系统由两个部分组成；冷陷阱（在玻璃管中挤满了0.5g的Chromosorb 107）和气体…带有火焰光度检测器的色谱仪。海水中的硫化合物和空气集中在冷陷阱中，然后将其注入GC并通过FPD确定。由于所有分析过程均由测序仪控制，因此该系统可以以一小时的间隔成功地分析海水和海洋空气中的硫化合物。通过使用我们的监测系统，在许多海洋地区进行了现场测量。 Mikawa Bay（Saku Island，1992- 1999年），太平洋0cean，印度洋，赤道海洋，北极（研究船“ Hakuho-Maru”，1992，1993，1993，1994，1994，1996，1997，“ Mirai” 1999年）等。从现场测量值中，获得了许多有关海洋环境中硫化合物的重要信息。海水中的平均DMS，COS，网格浓度为511ng/L（n = 1014），88ng/L（n = 1053），沿海面积为150ng/L（n = 193）和69ng/L（n = 1146），19ng/L（n = 519），15ng/l（n = 519），15ng/l（n = 15）。海水中硫化合物的每种浓度都与海洋初级生产力高度相关。较少的