Measurement of hydroxyl radical in the upper atmosphere using lidar from the Space Shuttle

William S. Heaps

doi:10.1364/AO.19.000243

Applied Optics
Vol. 19,
Issue 2,
pp. 243-249
(1980)
•https://doi.org/10.1364/AO.19.000243

Measurement of hydroxyl radical in the upper atmosphere using lidar from the Space Shuttle

William S. Heaps

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
William S. Heaps, "Measurement of hydroxyl radical in the upper atmosphere using lidar from the Space Shuttle," Appl. Opt. 19, 243-249 (1980)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Abstract

The hydroxyl radical (OH) is a key species in the chemistry of the atmosphere participating in such processes as catalytic destruction of ozone and aerosol formation. Despite its importance it has been measured only a handful of times at distinct geographical locations and local times. The measurement of the latitudinal and diurnal variation of OH would provide some excellent tests for the current picture of stratospheric and mesospheric chemistry. Such a measurement is possible using a lidar system on board the Space Shuttle. Two lidar systems are described. The first using excitation via the X²Π → A²∑ (0,1) transition at 282 nm and broadband detection gives the best signal to noise ratio for nighttime measurements at altitudes above 40 km. Its performance is degraded at lower altitudes by ozone absorption at 282 nm and during daytime operation by its sensitivity to backscattered solar UV flux. The second system uses (0,0) excitation at 308 nm with detection of a single line at 309 nm of the (0,0) fluorescence band. This system gives better performance during the day and at lower altitudes.

Full Article | PDF Article

More Like This

Stratospheric ozone and hydroxyl radical measurements by balloon-borne lidar

W. S. Heaps, T. J. McGee, R. D. Hudson, and L. O. Caudill
Appl. Opt. 21(12) 2265-2274 (1982)

Atmospheric hydroxyl radical (OH) abundances from ground-based ultraviolet solar spectra: an improved retrieval method

Ross Cheung, King Fai Li, Shuhui Wang, Thomas J. Pongetti, Richard P. Cageao, Stanley P. Sander, and Yuk L. Yung
Appl. Opt. 47(33) 6277-6284 (2008)

Analysis of differential absorption lidar from the Space Shuttle

Ellis E. Remsberg and Larry L. Gordley
Appl. Opt. 17(4) 624-630 (1978)

Previous Article Next Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (19)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Altitude (km)	τ₁(nsec)	τ₀(nsec)^a	η₁₁	η₀₀^b	η(total)^c
15	2.71	10.6	0.0024	0.0153	0.0125
20	5.89	22.5	0.0051	0.032	0.0262
25	13.0	46.6	0.0113	0.067	0.0549
30	26.8	96.7	0.0232	0.140	0.113
35	55.7	177.	0.0481	0.256	0.205
40	105.	290	0.090	0.419	0.327
45	183.	409	0.158	0.591	0.461
50	279.	502	0.241	0.724	0.544
55	396.	577	0.342	0.832	0.595
60	508.	624	0.439	0.900	0.626
65	599.	657	0.518	0.947	0.636
70	662	675	0.572	0.974	0.636
75	698	684	0.603	0.987	0.636
80	719	689	0.621	0.994	0.637
85	728	691	0.630	0.998	0.637
90	733	692	0.634	0.999	0.637
95	735	693	0.635	0.999	0.637
100	735	693	0.636	0.999	0.637

	Transmit 282 nm				Detect (0,0) and (1,1)

Local time	1200		2000		0000		0400

Altitude (km)	n(cm⁻³)	N(photons)	n	N	n	N	n	N
90	7E3	0.26	4E4	1.5	4E4	1.5	4E4	1.5
80	4E5	12.4	2E6	62.0	4E6	124.0	3E6	93.0
70	4E6	106.0	5E6	127.0	4E6	106.0	1.5E6	40.2
60	8E6	182.0	6E6	136.0	2E6	45.0	3E5	6.8
50	2E7	315.0	2E6	32.0	1.5E5	2.7	1E5	1.50
40	3E7	128.0	4E5	1.60	1.E5	0.43	6E4	0.25
30	1E7	0.29	1E5	0.0030	5E3	–	2E3	–

	Transmit 308 nm				Detect (0,0)

Local time	1200		2000		0000		0400

Altitude (km)	n(cm⁻³)	N(photons)	n	N	n	N	n	N
90	7E3	0.047	4E4	0.27	4E4	0.27	4E4	0.27
80	4E5	2.2	2E6	11	4E6	22	3E6	17
70	4E6	19	5E6	23	4E6	19	1.5E6	6.7
60	8E6	30	6E6	22	2E6	7	3E5	1.13
50	2E7	51	2E6	5	1.5E5	0.38	1E5	0.26
40	3E7	37	4E5	0.49	1E5	0.12	6E4	0.074
30	1E7	2.8	1E5	0.027	5E3	0.0013	2E3	0.00055

Local time	1200		2000		0000		0400
Altitude (km)	282 nm	308 nm	282 nm	308 nm	282 nm	308 nm	282 nm	308 nm
90	0.0017	0.22	1.24	0.52	1.24	0.52	1.24	0.52
80	0.082	1.4	7.8	3.33	11	4.6	9.6	4.0
70	0.71	4.3	11	4.9	10.3	4.3	6.4	2.7
60	1.2	5.5	11.7	4.6	6.7	2.7	2.6	1.0
50	2.1	7.1	5.7	2.3	1.6	0.6	1.2	0.49
40	0.85	6.1	1.3	0.71	0.64	0.34	0.49	0.27
30	0.0019	1.6	0.057	0.16	0.012	0.037	0.0078	0.023

Altitude (km)	τ₁(nsec)	τ₀(nsec)^a	η₁₁	η₀₀^b	η(total)^c
15	2.71	10.6	0.0024	0.0153	0.0125
20	5.89	22.5	0.0051	0.032	0.0262
25	13.0	46.6	0.0113	0.067	0.0549
30	26.8	96.7	0.0232	0.140	0.113
35	55.7	177.	0.0481	0.256	0.205
40	105.	290	0.090	0.419	0.327
45	183.	409	0.158	0.591	0.461
50	279.	502	0.241	0.724	0.544
55	396.	577	0.342	0.832	0.595
60	508.	624	0.439	0.900	0.626
65	599.	657	0.518	0.947	0.636
70	662	675	0.572	0.974	0.636
75	698	684	0.603	0.987	0.636
80	719	689	0.621	0.994	0.637
85	728	691	0.630	0.998	0.637
90	733	692	0.634	0.999	0.637
95	735	693	0.635	0.999	0.637
100	735	693	0.636	0.999	0.637

Abstract

Cited By

Figures (3)

Tables (4)

Equations (19)

Applied Optics