Cross-track Infrared Sounder (CrIS) satellite observations of tropospheric ammonia

Shephard, M. W.; Cady-Pereira, K. E.

doi:https://doi.org/10.5194/amt-8-1323-2015

Articles | Volume 8, issue 3

https://doi.org/10.5194/amt-8-1323-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-8-1323-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 3

Research article

|

19 Mar 2015

Research article |

| 19 Mar 2015

Cross-track Infrared Sounder (CrIS) satellite observations of tropospheric ammonia

M. W. Shephard and K. E. Cady-Pereira

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May 2015	31	11	1	43
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Jul 2015	32	19	0	51
Aug 2015	15	13	1	29
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Jun 2016	8	10	1	19
Jul 2016	14	16	3	33
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Jan 2017	13	10	0	23
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Dec 2023	60	11	3	74
Jan 2024	48	9	0	57
Feb 2024	74	17	3	94
Mar 2024	54	31	3	88
Apr 2024	54	40	11	105
May 2024	28	25	3	56
Jun 2024	31	18	2	51
Jul 2024	33	20	3	56
Aug 2024	50	25	8	83
Sep 2024	27	7	3	37
Oct 2024	36	13	2	51
Nov 2024	41	11	1	53
Dec 2024	32	14	3	49
Jan 2025	36	26	0	62
Feb 2025	47	17	1	65
Mar 2025	36	20	3	59
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May 2025	41	15	1	57
Jun 2025	56	31	1	88
Jul 2025	44	23	3	70
Aug 2025	79	27	2	108
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Oct 2025	56	35	2	93
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Cumulative views and downloads (calculated since 19 Nov 2014)

Month	HTML	PDF	XML	Total
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Dec 2014	18	24	0	42
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Feb 2015	26	30	1	57
Mar 2015	57	68	5	130
Apr 2015	61	34	3	98
May 2015	31	11	1	43
Jun 2015	36	12	0	48
Jul 2015	32	19	0	51
Aug 2015	15	13	1	29
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Nov 2023	61	11	0	72
Dec 2023	60	11	3	74
Jan 2024	48	9	0	57
Feb 2024	74	17	3	94
Mar 2024	54	31	3	88
Apr 2024	54	40	11	105
May 2024	28	25	3	56
Jun 2024	31	18	2	51
Jul 2024	33	20	3	56
Aug 2024	50	25	8	83
Sep 2024	27	7	3	37
Oct 2024	36	13	2	51
Nov 2024	41	11	1	53
Dec 2024	32	14	3	49
Jan 2025	36	26	0	62
Feb 2025	47	17	1	65
Mar 2025	36	20	3	59
Apr 2025	41	26	2	69
May 2025	41	15	1	57
Jun 2025	56	31	1	88
Jul 2025	44	23	3	70
Aug 2025	79	27	2	108
Sep 2025	79	27	1	107
Oct 2025	56	35	2	93
Nov 2025	6	3	1	10

Latest update: 07 Nov 2025

Short summary

Presented is a robust retrieval algorithm that demonstrates the capabilities of utilizing Cross-track Infrared Sounder (CrIS) satellite observations to globally retrieval ammonia (NH3) concentrations. Initial NH3 retrieval results show that CrIS is (i) sensitive to NH3 in the boundary layer, with peak vertical sensitivity typically around 850–750hPa (~2km), (ii) has a minimum detection limit of ~1ppbv (peak profile value typically at the surface), and (iii) typically has up to ~1 DOFS.