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 ...
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 +...
Observations of atmospheric CO2 from space provide a global view of the carbon cycle that can be used to describe phenomena that have been previously pieced together from sparse in situ data. NASA’s Orbiting Carbon Observatory-2 (OCO-2) mission was successfully launched on 2 July 2014 and sta...
Seamless XCO2concentrations mapped by XGBoost-PSO model.Annual mean XCO2in East Asia increased at a rate of 2.21ppm/yr from 2015 to 2020.Seasonal variations showed highest XCO2in winter and lowest in summer.Anthropogenic activities contributed significantly to XCO2concentrations....
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...
After examining the OCO-2 data availability at global scale, we evaluated the data quality and its potential use for CO2ff emission estimations over the largest cities. We then locally evaluated the OCO-2 data quality flags designed for global studies within a multi-model comparison of three ...
Atmospheric scientists are excited about that. But to understand the processes that control the amount of the greenhouse gas in the atmosphere, they need to know more than just where carbon dioxide is now. They need to know where it has been. It takes more than great data to figure that ...
=2FILE_CO2_LEVELS=3FILE_TIMES=4nam=input("ENTER THE SOURCE (OCO2_L2 , OCO2_LITE, OCO2_L1B, GREYDATANOV): ")#find the files with the correct coords (directory , longitude, latitude, optional date)#output format will be [[file_obj], [file_names], [coords], [type_co2], [times...
(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...
摘要: NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dryair mole fraction, X-CO2, in the Earth's atmosphere for over 2 years. In this pape... 查看全部>>DOI: 10.5194/amt-2016-227 年份: 2016 ...