OCO-2和OCO-3具有迄今为止最高的星载SIF反演空间分辨率,OCO-2和OCO-3的目标和快照区域模式观测模式是独特的。这些卫星数据数据为生物多样性全球目标地点提供了数百到数千次SIF反演,并为我们更好地了解整个生物群落的冠层植被SIF发射提供了机会。 结果 图1.GOSAT、OCO-2和OCO-3的年度(2020年)和2020年6月平均每日...
Global Atmospheric Inversions of XCO2 and Solar-Induced Fluorescence (SIF) from OCO-2Andrew E Schuh
SIF工具 创建了公共github存储库以支持AGU 2018上的荧光应用研讨会: : 此处提供的示例和工具的主要目的是帮助尚未熟悉SIF数据的用户了解其用法,缺陷以及所需的编程工具。 无论如何,都要具备一些脚本编程经验才能使用卫星数据,我们选择使用开放源代码软件,同时使用python和R。Jupyter的python笔记本(以及Julia等)提供了一...
The OCO-2 SIF757 estimated GPP well (R2 = 0.81, p < 0.0001; RMSE = 1.11 gC m− 2 d− 1), and its performance was comparable to or slightly better than that of the MODIS GPP algorithm, a GPP model based on the light use efficiency logic. With intensive OCO-2 observations ...
As pathfinder missions, NASA’s Orbiting Carbon Observatory-2 and its sister mission OCO-3 have remarkably expanded global CO2observation coverage for over nine years. Additionally, both missions retrieve solar-induced chlorophyll fluorescence (SIF) data, an indicator of photosynthetic activity, at ...
Solar-induced chlorophyll fluorescence (SIF) observed by the Orbiting Carbon Observatory-2 (OCO-2) has offered unprecedented opportunities for monitoring land photosynthesis, while its sparse coverage remains a bottleneck for mapping finer-resolution GPP globally. Here, we used the global, OCO-2-based...
GPP estimates resulting from the SIF-GPP relationship, we used a total of eight SIF-GPP relationships with different forms (universal and biome-specific, with and without intercept) at both site and grid cell levels to estimate GPP. Our results showed that all of the eight SIF-GPP ...
4.(1)沉钴工艺流程如下图所示,请写出“沉钴”过程中的离子方程式Co^(2+)+2HCO_3^-=C_OCO_3↓+CO_2↑+H_2O 水相滤液沉钻过滤(CoSO4溶液)CoCO_3||(n+2)|≠ NH4HCO3溶液(2)利用制磷肥的副 j=4≥J 氟硅酸钠(Na2SiF6)生产冰晶石(Na3AlF6)的工艺流程如下氨水NaAlO2溶液Na_2SiF_6→3+NH_4...
请回答下面问题(1)Mg是第三周期元素.该周期部分元素氟化物的熔点见下表:氟化物NaFMgF2SiF4熔点/K12661534183解释表中氟化物熔点差异的原因: .(2)CO的结构可表示为C≡O.N2的结构可表示为N≡N.下表是两者的键能数据: C-OC=OC
OCO-2 SIFCarbon assimilation systemThe gross primary productivity (GPP) is the largest carbon flux in the terrestrial carbon cycle. Constraining GPP is critical for understanding the terrestrial carbon sources and sinks. In this study, we attempted to constrain the terrestrial GPP at regional to ...