Advancements in theory of GHG observation from space

Liu, Yi; Yang, Dongxu

doi:10.1007/s11434-016-1022-1

Cited by 6 publications

(4 citation statements)

References 15 publications

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“…The Chinese Global Carbon Dioxide Monitoring Scientific Experimental Satellite (TanSat), funded by the Ministry of Science and Technology of China, the Chinese Academy of Sciences, and the China Meteorological Administration, was launched in December 2016 (Liu and Yang, 2016;Ran et al, 2019). The first global XCO 2 map measured by TanSat was reported in a previous study (Yang et al, 2018), and Total Column Carbon Observing Network validation shows 2.2 ppm accuracy for version 1 of the TanSat L2 data product (Liu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The First Global Carbon Dioxide Flux Map Derived from TanSat Measurements

et al. 2021

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Space-borne measurements of atmospheric greenhouse gas concentrations provide global observation constraints for top-down estimates of surface carbon flux. Here, the first estimates of the global distribution of carbon surface fluxes inferred from dry-air CO 2 column (XCO 2 ) measurements by the Chinese Global Carbon Dioxide Monitoring Scientific Experimental Satellite (TanSat) are presented. An ensemble transform Kalman filter (ETKF) data assimilation system coupled with the GEOS-Chem global chemistry transport model is used to optimally fit model simulations with the TanSat XCO 2 observations, which were retrieved using the Institute of Atmospheric Physics Carbon dioxide retrieval Algorithm for Satellite remote sensing (IAPCAS). High posterior error reduction (30%-50%) compared with a priori fluxes indicates that assimilating satellite XCO 2 measurements provides highly effective constraints on global carbon flux estimation. Their impacts are also highlighted by significant spatiotemporal shifts in flux patterns over regions critical to the global carbon budget, such as tropical South America and China. An integrated global land carbon net flux of 6.71 ± 0.76 Gt C yr −1 over 12 months (May 2017-April 2018) is estimated from the TanSat XCO 2 data, which is generally consistent with other inversions based on satellite data, such as the JAXA GOSAT and NASA OCO-2 XCO 2 retrievals. However, discrepancies were found in some regional flux estimates, particularly over the Southern Hemisphere, where there may still be uncorrected bias between satellite measurements due to the lack of independent reference observations. The results of this study provide the groundwork for further studies using current or future TanSat XCO 2 data together with other surfacebased and space-borne measurements to quantify biosphere-atmosphere carbon exchange.

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Section: Introductionmentioning

confidence: 99%

The First Global Carbon Dioxide Flux Map Derived from TanSat Measurements

et al. 2021

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“…2350), which required every region to make work plan and formulate a scheme, and organized the work of GHG inventories. [7] By the end of 2014, the National Development and Reform Commission organized experts to complete the review of the provincial GHG inventories compiled by the provinces of China in 2005 and 2010, marking the completion of the first compilation of the provincial GHG inventory in china. [8] The General Office of National Development and Reform Commission in 2015 issued notice of the General Office of the National Development and Reform Commission on carrying out the work of the compilation of provincial GHG inventories at the next stage (climate change 2015 No.…”

Section: Progress In Compiling Ghg Inventory In Chinamentioning

confidence: 99%

Progress and Suggestion on Compiling GHG Inventories in Cities and Counties Level of China

Bing¹

2017

IJEMA

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On December 12, 2015, the Paris agreement, known as "a historic step for human response to climate change" was adopted, and more and more governments and the public were paying attention to climate change. GHG (greenhouse gas) inventory is one of the most basic tasks in tackling climate change. GHG inventory refers to the government as a unit to calculate its greenhouse gas emissions directly or indirectly in the social and production activities. According to the compilation of inventory, the region is divided into national greenhouse gas inventory, provincial greenhouse gas inventory, city and county level greenhouse gas inventory. In this paper, through theoretical analysis about the preparation of GHG compilation of inventory of the national, provincial, city and county level, and combining the existing problems and solutions in the process of GHG compilation of inventory in Jinchang, the author puts forward some suggestions and opinions on GHG emissions inventory of city and county level.

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“…China's Global Carbon Dioxide Monitoring Scientific Experimental Satellite (TanSat) was launched in December 2016 after Japan's Greenhouse gases Observing SATellite (GOSAT, 2009) (Kuze et al, 2009) and NASA's Orbiting Carbon Observatory-2 (OCO-2, 2014) (Crisp et al, 2017) mission. Similar to the OCO-2 mission, TanSat has a hyperspectral grating spectrometer covering the near-infrared (NIR) and short-wave infrared (SWIR) regions that are sensitive to CO 2 absorption (Liu and Yang, 2016). The nadir footprint size of TanSat measurement is ~2 × 2 km 2 , and it has nine footprints across the track in a frame, which means TanSat has the potential to capture anthropogenic emission enhancements in a city and downwind of a power station.…”

Section: Introductionmentioning

confidence: 99%

Detection of Anthropogenic CO2 Emission Signatures with TanSat CO2 and with Copernicus Sentinel-5 Precursor (S5P) NO2 Measurements: First Results

et al. 2022

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China’s first carbon dioxide (CO 2 ) measurement satellite mission, TanSat, was launched in December 2016. This paper introduces the first attempt to detect anthropogenic CO 2 emission signatures using CO 2 observations from TanSat and NO 2 measurements from the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Copernicus Sentinel-5 Precursor (S5P) satellite. We focus our analysis on two selected cases in Tangshan, China and Tokyo, Japan. We found that the TanSat XCO 2 measurements have the capability to capture the anthropogenic variations in the plume and have spatial patterns similar to that of the TROPOMI NO 2 observations. The linear fit between TanSat XCO 2 and TROPOMI NO 2 indicates the CO 2 -to-NO 2 ratio of 0.8 × 10 −16 ppm (molec cm −2 ) −1 in Tangshan and 2.3 × 10 −16 ppm (molec cm −2 ) −1 in Tokyo. Our results align with the CO 2 -to-NO x emission ratios obtained from the EDGAR v6 emission inventory. Electronic supplementary material Supplementary material is available in the online version of this article at 10.1007/s00376-022-2237-5.

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Advancements in theory of GHG observation from space

Cited by 6 publications

References 15 publications

The First Global Carbon Dioxide Flux Map Derived from TanSat Measurements

The First Global Carbon Dioxide Flux Map Derived from TanSat Measurements

Progress and Suggestion on Compiling GHG Inventories in Cities and Counties Level of China

Detection of Anthropogenic CO2 Emission Signatures with TanSat CO2 and with Copernicus Sentinel-5 Precursor (S5P) NO2 Measurements: First Results

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