Evaluating consistency between total column CO<sub>2</sub> retrievals from OCO-2 and the in situ network over North America: implications for carbon flux estimation

Rastogi, Bharat; Miller, John B.; Trudeau, Micheal; Andrews, Arlyn E.; Hu, Lei; Mountain, Marikate; Nehrkorn, Thomas; Baier, Bianca; McKain, Kathryn; Mund, John; Guan, Kaiyu; Alden, Caroline B.

doi:https://doi.org/10.5194/acp-21-14385-2021

Articles | Volume 21, issue 18

https://doi.org/10.5194/acp-21-14385-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-14385-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 18

Research article

|

28 Sep 2021

Research article |

| 28 Sep 2021

Evaluating consistency between total column CO₂ retrievals from OCO-2 and the in situ network over North America: implications for carbon flux estimation

Bharat Rastogi, John B. Miller, Micheal Trudeau, Arlyn E. Andrews, Lei Hu, Marikate Mountain, Thomas Nehrkorn, Bianca Baier, Kathryn McKain, John Mund, Kaiyu Guan, and Caroline B. Alden

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Views and downloads (calculated since 20 Apr 2021)

Month	HTML	PDF	XML	Total
Apr 2021	190	72	5	267
May 2021	80	27	2	109
Jun 2021	66	34	1	101
Jul 2021	27	14	1	42
Aug 2021	50	15	3	68
Sep 2021	269	69	7	345
Oct 2021	207	92	2	301
Nov 2021	112	60	0	172
Dec 2021	90	26	3	119
Jan 2022	32	23	0	55
Feb 2022	24	15	1	40
Mar 2022	32	18	0	50
Apr 2022	21	16	1	38
May 2022	11	11	0	22
Jun 2022	14	13	0	27
Jul 2022	27	15	0	42
Aug 2022	38	14	1	53
Sep 2022	22	11	0	33
Oct 2022	34	9	0	43
Nov 2022	30	15	4	49
Dec 2022	27	21	1	49
Jan 2023	30	28	1	59
Feb 2023	29	14	0	43
Mar 2023	13	9	0	22
Apr 2023	24	16	3	43
May 2023	15	9	0	24
Jun 2023	23	10	0	33
Jul 2023	22	17	2	41
Aug 2023	29	13	3	45
Sep 2023	37	14	0	51
Oct 2023	71	17	1	89
Nov 2023	29	6	0	35
Dec 2023	26	14	2	42
Jan 2024	44	4	1	49
Feb 2024	28	17	2	47
Mar 2024	30	29	1	60
Apr 2024	47	34	1	82
May 2024	35	13	2	50
Jun 2024	31	9	7	47
Jul 2024	43	17	1	61
Aug 2024	42	9	2	53
Sep 2024	22	10	0	32
Oct 2024	43	10	0	53
Nov 2024	28	9	3	40
Dec 2024	29	5	0	34
Jan 2025	33	8	0	41
Feb 2025	45	13	1	59
Mar 2025	33	13	1	47
Apr 2025	36	11	3	50
May 2025	40	12	1	53
Jun 2025	59	40	1	100
Jul 2025	6	2	1	9

Cumulative views and downloads (calculated since 20 Apr 2021)

Month	HTML	PDF	XML	Total
Apr 2021	190	72	5	267
May 2021	80	27	2	109
Jun 2021	66	34	1	101
Jul 2021	27	14	1	42
Aug 2021	50	15	3	68
Sep 2021	269	69	7	345
Oct 2021	207	92	2	301
Nov 2021	112	60	0	172
Dec 2021	90	26	3	119
Jan 2022	32	23	0	55
Feb 2022	24	15	1	40
Mar 2022	32	18	0	50
Apr 2022	21	16	1	38
May 2022	11	11	0	22
Jun 2022	14	13	0	27
Jul 2022	27	15	0	42
Aug 2022	38	14	1	53
Sep 2022	22	11	0	33
Oct 2022	34	9	0	43
Nov 2022	30	15	4	49
Dec 2022	27	21	1	49
Jan 2023	30	28	1	59
Feb 2023	29	14	0	43
Mar 2023	13	9	0	22
Apr 2023	24	16	3	43
May 2023	15	9	0	24
Jun 2023	23	10	0	33
Jul 2023	22	17	2	41
Aug 2023	29	13	3	45
Sep 2023	37	14	0	51
Oct 2023	71	17	1	89
Nov 2023	29	6	0	35
Dec 2023	26	14	2	42
Jan 2024	44	4	1	49
Feb 2024	28	17	2	47
Mar 2024	30	29	1	60
Apr 2024	47	34	1	82
May 2024	35	13	2	50
Jun 2024	31	9	7	47
Jul 2024	43	17	1	61
Aug 2024	42	9	2	53
Sep 2024	22	10	0	32
Oct 2024	43	10	0	53
Nov 2024	28	9	3	40
Dec 2024	29	5	0	34
Jan 2025	33	8	0	41
Feb 2025	45	13	1	59
Mar 2025	33	13	1	47
Apr 2025	36	11	3	50
May 2025	40	12	1	53
Jun 2025	59	40	1	100
Jul 2025	6	2	1	9

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Short summary

Predicting Earth's climate is difficult, partly due to uncertainty in forecasting how much CO₂ can be removed by oceans and plants, because we cannot measure these exchanges directly on large scales. Satellites such as NASA's OCO-2 can provide part of the needed information, but data need to be highly precise and accurate. We evaluate these data and find small biases in certain months that are similar to the signals of interest. We argue that continued improvement of these data is necessary.

Evaluating consistency between total column CO₂ retrievals from OCO-2 and the in situ network over North America: implications for carbon flux estimation

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Evaluating consistency between total column CO2 retrievals from OCO-2 and the in situ network over North America: implications for carbon flux estimation

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Evaluating consistency between total column CO₂ retrievals from OCO-2 and the in situ network over North America: implications for carbon flux estimation