Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.4914 |
Assessing the health of the in situ global surface marine climate observing system | |
Berry, David I.; Kent, Elizabeth C. | |
2017-04-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:5 |
文章类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | England |
英文摘要 | The in situ surface marine climate observing system includes contributions from several different types of observing platforms. Most observations come from mobile platforms, e.g. ships or surface drifting buoys. Climate applications using marine observations often require fields of environmental parameters to be constructed on regular spatiotemporal grids. User requirements are therefore typically presented in terms of parameter uncertainty at particular space and timescales. It is therefore important to relate the characteristics of marine observations, in terms of their expected quality and sampling distribution, to these requirements. A simple method to estimate the instrumental uncertainty in fields derived from a mixture of observation types is presented. This method enables preliminary assessment of the extent to which the available observations meet the stated user requirements. Example observing system adequacy assessments are presented for two climate variables, sea surface temperature (SST) and marine air temperature (MAT) using in situ data. The method is also applicable to gridded data sets constructed from combined in situ and satellite data. While the global metrics for SST show an improvement in observing system adequacy over time, the adequacy for MAT is declining. The assessments can determine the most efficient approach to improving observing system adequacy. For in situSST the best approach would be to increase the number of different platforms making observations. For MAT, increasing the number of observations overall, regardless of platform and increasing the geographical coverage is required to reduce the uncertainty. The assessments would be improved by more extensive evaluation of uncertainties associated with each different variable for each platform type. It would also be beneficial to review the completeness of the user requirements: e.g. to include user requirements relating to the stability of averages on large space and timescales required for climate monitoring, or for constructing estimates of air-sea exchange. |
英文关键词 | observing system assessment instrumental uncertainty ICOADS sea surface temperature air temperature Global Climate Observing System marine observations |
领域 | 气候变化 |
收录类别 | SCI-E ; ISTP |
WOS记录号 | WOS:000398859700004 |
WOS关键词 | AIR-SEA FLUXES ; TEMPERATURE ANALYSIS ; VOS OBSERVATIONS ; SAMPLING ERRORS ; HEATING ERRORS ; PART II ; TRENDS ; SHIP ; RETRIEVAL ; ACCURACY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37534 |
专题 | 气候变化 |
作者单位 | Natl Oceanog Ctr, Marine Phys & Ocean Climate, European Way, Southampton SO14 3ZH, Hants, England |
推荐引用方式 GB/T 7714 | Berry, David I.,Kent, Elizabeth C.. Assessing the health of the in situ global surface marine climate observing system[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(5). |
APA | Berry, David I.,&Kent, Elizabeth C..(2017).Assessing the health of the in situ global surface marine climate observing system.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(5). |
MLA | Berry, David I.,et al."Assessing the health of the in situ global surface marine climate observing system".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.5(2017). |
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