Advances in Remote Sensing Retrieval of Aquatic pCO2: From Open Oceans to Inland Water Bodies

Shiwei LIU; Kaishan SONG; Chunlan XIONG; Ge LIU; Hui TAO; Yingxin SHANG; Zhidan WEN

doi:10.11873/j.issn.1004-0323.2025.4.0875

Remote Sensing Technology and Application, Volume. 40, Issue 4, 875(2025)

Advances in Remote Sensing Retrieval of Aquatic pCO₂: From Open Oceans to Inland Water Bodies

Shiwei LIU^1,2, Kaishan SONG¹, Chunlan XIONG^1,2, Ge LIU¹, Hui TAO¹, Yingxin SHANG¹, and Zhidan WEN^1、*

Author Affiliations

¹Northeast Institute of Geography and Agroecology， Chinese Academy of Sciences， Changchun130102， China

²College of Resources and Environment，University of Chinese Academy of Sciences， Beijing100049， China

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Fig. 1. The processes and environmental variables affecting CO₂ in surface water bodies

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Table 1. Table 1Remote sensing inversion method for pCO2 in surface water

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Table 1. Table 1Remote sensing inversion method for pCO2 in surface water

模型	变量	研究区	RMSE/μatm	参考文献
MLR	T、Lon	北太平洋副热带	17	[42]
MLR	T、Chla	南大洋		[43]
MLR	T、Chla、MLD	北大西洋	8~15	[10]
MNR	T、Chla	北太平洋	14~17	[46]
MNR	T、SSS、Chla	北太平洋	17~23	[44]
CatBoost	T、Chla、Adg、Kd、MLD	北大西洋	8.25	[48]
NN	T、Chla	北大西洋	19	[53]
NN	T、Chla、MLD	北大西洋	11.6	[50]
FNN	T、NCP、pCO2 (atm)	南大洋	21.68	[27]
MPNR	T、SSS、Chla	全球海洋	6~7	[45]
SVR	T、SSS、Chla、Lon、Lat、t	全球海洋	3~16	[93]
NN	T、Chla、Lon、Lat	南海北部	6.9	[52]
GPR	T、Chla、MLD、xCO2、SSH	白令海	<24	[12]
RFRE	T、SSS、Chla、Kd	墨西哥湾	9.1	[54]
SOMLO	T、Chla、CDOM、NPP、MLD	波罗的海	36	[55]
SF	T、CDOM、MLD、PAR	波罗的海	47.8	[56]
XGBoost	T、SSS	孟加拉湾	12.23	[57]
MNR	T、Chla、Lon、Lat、t	北太平洋东部	<20	[58]
MeSAA	T、SSS、Chla	东海		[20]
MeSAA	T、SSS、Chla	路易斯安那	58	[59]
MNR	T、Kd_（PAR）、Chla、PAR	太湖	11.81 μmol L^-1	[80]
MNR	T、Z_SD、Chla、PAR-related	长江中下游湖泊	<6.35 μmol L¹	[22]
XGBoost	B3、B5（Landsat）	查干湖	16.86	[81]

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Shiwei LIU, Kaishan SONG, Chunlan XIONG, Ge LIU, Hui TAO, Yingxin SHANG, Zhidan WEN. Advances in Remote Sensing Retrieval of Aquatic pCO₂: From Open Oceans to Inland Water Bodies[J]. Remote Sensing Technology and Application, 2025, 40(4): 875

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