Google Earth Engine ——数据全解析专辑（COPERNICUS/S5P/NRTI/L3_CO）实时的 CO 浓度高分辨率图像数据集

NRTI/L3_CO

This dataset provides near real-time high-resolution imagery of CO concentrations.

Carbon monoxide (CO) is an important atmospheric trace gas for understanding tropospheric chemistry. In certain urban areas, it is a major atmospheric pollutant. Main sources of CO are combustion of fossil fuels, biomass burning, and atmospheric oxidation of methane and other hydrocarbons. Whereas fossil fuel combustion is the main source of CO at northern mid-latitudes, the oxidation of isoprene and biomass burning play an important role in the tropics. TROPOMI on the Sentinel 5 Precursor (S5P) satellite observes the CO global abundance exploiting clear-sky and cloudy-sky Earth radiance measurements in the 2.3 µm spectral range of the shortwave infrared (SWIR) part of the solar spectrum. TROPOMI clear sky observations provide CO total columns with sensitivity to the tropospheric boundary layer. For cloudy atmospheres, the column sensitivity changes according to the light path. [More information]

NRTI/L3_CO

该数据集提供了近乎实时的 CO 浓度高分辨率图像。

一氧化碳 (CO) 是一种重要的大气痕量气体，可用于了解对流层化学。在某些城市地区，它是一种主要的大气污染物。 CO 的主要来源是化石燃料的燃烧、生物质燃烧以及甲烷和其他碳氢化合物的大气氧化。在中纬度北部，化石燃料燃烧是 CO 的主要来源，而异戊二烯的氧化和生物质燃烧在热带地区起着重要作用。 Sentinel 5 Precursor (S5P) 卫星上的 TROPOMI 利用太阳光谱短波红外 (SWIR) 部分 2.3 µm 光谱范围内的晴空和多云天空地球辐射测量值观测 CO 全球丰度。 TROPOMI 晴空观测提供了对对流层边界层敏感的 CO 总列。对于多云环境，色谱柱灵敏度根据光路而变化。 [更多信息]

Dataset Availability

2018-11-22T12:00:13 - 2021-09-05T00:00:00

Dataset Provider

European Union/ESA/Copernicus

Collection Snippet

ee.ImageCollection("COPERNICUS/S5P/NRTI/L3_CO")

Resolution

0.01 degrees

Bands Table

* = Values are estimated

代码：

var collection = ee.ImageCollection('COPERNICUS/S5P/NRTI/L3_CO')
  .select('CO_column_number_density')
  .filterDate('2019-06-01', '2019-06-11');
var band_viz = {
  min: 0,
  max: 0.05,
  palette: ['black', 'blue', 'purple', 'cyan', 'green', 'yellow', 'red']
};
Map.addLayer(collection.mean(), band_viz, 'S5P CO');
Map.setCenter(-25.01, -4.28, 4);