打开oco-xco2文件夹,新建txt文档,改名为.env 注:这里会提示更改文件拓展名可能导致文件不可用,点确定即可(无视风险继续安装) 右键.env文件 -> 打开方式 -> 记事本,使用记事本打开文档。 打开后是空白文档(当然了,因为我们刚创建),这里我们需要输入我们 Earth data 的用户名和密码,后面数据下载会用到。格式为 ...
The XCO2 data belonging to orbiting carbon observatory-2 (OCO-2) and eight environmental variables data consist of normalized difference vegetation index (NDVI), net primary productivity (NPP), land surface temperature (LST), leaf area index (LAI), air temperature, wind speed, wind direction, ...
反演出CO2背景场浓度; 步骤3中反演CO2背景浓度实现如下, 利用待定系数法求背景场浓度,假设背景场浓度为t,利用贝叶斯估计得到后验总碳通 量,再利用后验总碳通量和足迹得到模拟观测值XCO ,模拟观测值XCO 和实际观测值差 2,m 2,m 值符合均值为0的正态分布, ‑1 T ‑1 ‑1 T ‑1 x =x +(S +...
Carbon dioxide (CO2) plumes from non-erupting active volcanoes, power plants, and other point source emitters are continuous but their plume characteristics differ due to individual source strength, injection altitude, prevailing winds, local topography, time dependent variability, and other factors. For...
(27–30). We provide an approach for studying the temporal sequence of El Niño–induced changes in global CO2 concentrations, using observations from the OCO-2 mission that are validated with CO2 data from the Tropical Atmosphere Ocean (TAO) moored array. We see a response from the ...
Anthropogenic CO 2 emissions assessment of Nile Delta using XCO 2 and SIF data from OCO-2 satellite We estimate CO(2)emissions from the Nile Delta region of Egypt, using over five years of column-averaged CO(2)dry air mole fraction (XCO2) data from the NA... A Shekhar,J Chen,Paetzol...
(JAXA)8. Using multiple flux inversions ofin situand satellite CO2data, Howelinget al. find that the model-model flux differences quickly increase to >100% of the annual flux on the scale of the subcontinental regions9. It is generally understood that the differences in inversion-derived CO2...
Satellite platforms provide favorable temporal and spatial coverage to collect urban CO2 data to quantify the anthropogenic contributions to the global carbon budget. We present here the optimal observation design for future NASA's OCO-2 and Japanese GOSAT missions, based on real-data (i.e. OCO-...
In an initial exploratory data analysis (EDA) step, we create a bivariate time series (Figure 1) from monthly, gridded SIF and XCO2 data. This analysis is isolated in the directory 00_eda. Note that all of the version 10r Lite files are needed for this step (see above)....
Large CO2 Emitters as Seen From Satellite: Comparison to a Gridded Global Emission Inventory Using the multiyear archive of the two Orbiting Carbon Observatories (OCO) of NASA, we have retrieved large fossil fuel CO2 emissions (larger than 1.0 ktCO... F Chevallier,G Broquet,B Zheng,... -...