数据集用于比较预测的GeoS-NCEP/NCAR-ANN数据集中的月度时空降水和温度变化
相关实验视频
Updated: Jul 7, 2025

06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
985
1College of Social Science, PayameNoor University, PO Box 19395-3697, Tehran, Iran.
Data in brief
|December 26, 2023
概括
一个新的降雨和温度数据库 (PTDB) 提供了1991-2020年全球每月气候数据. 该资源有助于气候变化分析和自然危害评估.
科学领域:
- 环境科学 环境科学
- 气候科学 气候科学
- 数据科学数据科学数据科学
背景情况:
- 全球气候数据对于了解环境变化至关重要.
- 现有的数据集可能缺乏全面的时空空间覆盖.
- 准确的气候数据对于气候变化建模和危险评估至关重要.
研究的目的:
- 引入降水和温度数据库 (PTDB),这是一个月度气候数据的全球资源.
- 为时空气候变化分析提供一个有价值的工具.
- 为研究和建模提供互插气候数据.
主要方法:
- 在全球坐标系统中使用了一个大规模的GeoS-NCEP/NCAR-ANN.
- 从30年的气候数据集 (1991-2020) 中提取数据.
- 在ArcGIS Pro3中使用地理统计方法和在MATLAB中使用人工神经网络 (ANN) 来生成数据.
主要成果:
- 开发了降水和温度数据库 (PTDB),其中包含全球10368个降水和65535个温度点的数据.
- 每月生成的插曲拉斯特数据,分辨率为14361.49平方公里 (降水) 和2272.068平方公里 (温度).
- 在Mendeley数据平台上以Excel格式下载月度数据.
结论:
- PTDB是全球气候研究的全面和可访问的资源.
- 该数据库支持对气候变化和自然灾害的时空分析.
- 生成的数据有助于气候建模,预测和风险评估.
相关概念视频
Precipitation and Co-precipitation
1.8K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
1.8K
Precipitation Gravimetry
6.6K
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...
6.6K
Precipitation Processes
456
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
456
Global Climate Change
24.4K
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.
24.4K
Temperature 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
Review and Preview
9.0K
Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
9.0K

