自1980年以来的海面温度的卫星时间序列,用于气候应用
Owen Embury1,2, Christopher J Merchant3,4, Simon A Good5
1Department of Meteorology, University of Reading, Reading, UK. o.embury@reading.ac.uk.
Scientific data
|March 30, 2024
概括
来自卫星观测 (1980-2021) 的新的42年全球海面温度 (SST) 数据集提供了更好的准确性和覆盖范围. 这种气候数据记录提供了一个稳定的,没有差距的分析,对于理解海洋温度趋势至关重要.
科学领域:
- 地球科学 地球科学 地球科学
- 海洋学 海洋学 海洋学
- 气候科学 气候科学
背景情况:
- 长期,准确的海面温度 (SST) 数据对于气候监测和研究至关重要.
- 以前的卫星衍生SST记录在准确性,空间覆盖和时间长度方面面临限制.
- 仅靠现场测量是不足以进行全面的全球气候分析.
研究的目的:
- 通过卫星观测 (1980-2021) 来记录全球海面温度 (SST) 的42年气候数据记录.
- 与以前的版本相比,提高SST记录的准确性,空间覆盖和长度.
- 提供适合气候应用的稳定,无差距的SST分析.
主要方法:
- 利用了20个红外和2个微波辐射仪的观测结果.
- 调整了不同时间的测量,以确保观测的稳定性,避免伪造.
- 处理了1.5 × 10^13个位置,产生了1.4 × 10^12个合适的SST观测,随着时间的推移密度增加.
主要成果:
- 创建了一个42年的全球SST数据记录 (1980-2021),与现场数据高度独立.
- 数据以原生分辨率,在0.05°网格上,以及作为每日,合并,无差距分析.
- 在精度,空间覆盖和记录长度方面取得了改进,并通过例行扩展时间序列.
结论:
- 新的基于卫星的SST数据集代表了气候研究的重大进步.
- 改进的数据质量和覆盖范围有助于对全球海洋温度变化进行更强大的分析.
- 一致的方法确保了这一重要的气候数据记录的持续可靠性和实用性.
相关概念视频
01:14Temperature Measurement Sites
1.7K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
1.7K
01:50Global Climate Change
24.3K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.3K
01:03Precipitation Gravimetry
6.3K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
6.3K
00:54Time-Series Graph
4.4K
A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
4.4K
01:17Radiation: Applications
1.1K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.1K
01:22Thermometers and Temperature Scales
5.3K
Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
As many physical properties depend on temperature, the variety of thermometers is...
5.3K