【摘 要】
：
The atmospheric inversion is an effective method for quantify-ing surface CO2 fluxes at global and regional scales using the gradi-ent of CO2 measurements and has the advantage of inferring CO2 sources and sinks over large spatial scales.The“2019 Refineme
【机 构】
：
School of Remote Sensing and Geomatics Engineering,Nanjing University of Information Science and Tec
论文部分内容阅读
The atmospheric inversion is an effective method for quantify-ing surface CO2 fluxes at global and regional scales using the gradi-ent of CO2 measurements and has the advantage of inferring CO2 sources and sinks over large spatial scales.The“2019 Refinement to the 2006IPCC Guidelines for National Greenhouse Gas Inventories”was adopted and accepted during the 49th Session of the Intergov-ernmental Panel on Climate Change(IPCC)in May 2019.In this 2019 refinement,the content of using the“top-down”approach based on atmospheric observations(i.e.,atmospheric inversions of greenhouse gas)was explicitly added for verification of the emission(i.e.,greenhouse gas)inventory[1].The idea of Monitor-ing,Verification and Supporting(MVS)based on atmospheric observations has therefore been formed internationally.The World Meteorological Organization(WMO)is actively promoting the Integrated Global Greenhouse Gas Information System(IG3IS)Pro-gram[2].The program aims to evaluate global and regional green-house gas sources/sinks and their changes,to verify and supplement the“bottom-up”inventory algorithms,to reduce the uncertainties of emission inventory,and finally to provide timely and quantitative guidance for the progress of national emission reduction strategy and commitment[2].
其他文献
Metal foams with hierarchically porous structures are highly desirable in energy applications as active materials or their host substrates.However,conventional preparation methods usually have a quite lim-ited flexibility of adjusting pore size of metal f
Thiazolidinediones(TZDs),such as rosiglitazone(RSG),which activates peroxisome proliferator activated receptor-γ(PPARγ),are a potent class of oral antidiabetic agents with good durability.However,the clin-ical use of TZDs is challenging because of their s
The recent discovery and realizations of higher-order topological insulators enrich the fundamental stud-ies on topological phases.Here,we report three-dimensional(3D)wave-steering capabilities enabled by topological boundary states at three different ord
Topological phases in non-Hermitian systems have become fascinating subjects recently.In this paper,we attempt to classify topological phases in 1D interacting non-Hermitian systems.We begin with the non-Hermitian generalization of the Su-Schrieffer-Heege
Amber from Kachin,Myanmar offers a unique window into mid-Cretaceous ecosystems because it provides large sample sets that span a wide range of taxa preserved in exquisite detail at approximately 99 Ma[1].A fringe benefit of such extensive sam-pling is th
Bat coronavirus (CoV) RaTG13 shares the highest genome sequence identity with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among all known coronaviruses,and also uses human angiotensin converting enzyme 2 (hACE2) for virus entry.Thus,SARS-
The information collected from the human body is fundamental for developing the Internet of Things,and may lead to intelligent and ubiquitous health care,human-computer interface,and even advanced human capabilities.However,this will require electronic de
Acute myocardial infarction(MI),one of the most common cardiovascular emergencies,is a leading cause of morbidity and mortality.Ample evidence has revealed an essential role for inflammasome activation and autophagy in the pathogenesis of acute MI.Tax1-bi
The Ediacaran Shuram excursion (SE) is widely regarded as one of the largest carbon isotope (δ13C) negative excursions in Earth history,with carbonate δ13C values down to ca.-12‰ (VPDB) [1].This event has been reported in Ediacaran strata on a global scal
The relationship between low levels of serum low-density lipoprotein cholesterol(LDL-C)and subse-quent cognitive decline remains unclear.The present study aimed to evaluate the longitudinal associa-tion between low LDL-C levels and cognition decline in th