OH and HO2 in the tropical Pacific: Results from PEM-Tropics B

D. Tan; I. Faloona; J. B. Simpas; W. Brune; J. Olson; J. Crawford; M. Avery; G. Sachse; S. Vay; S. Sandholm; H. W. Guan; T. Vaughn; J. Mastromarino; B. Heikes; J. Snow; J. Podolske; H. Singh

doi:10.1029/2001JD900002

OH and HO₂ in the tropical Pacific: Results from PEM-Tropics B

D. Tan, I. Faloona, J. B. Simpas, W. Brune, J. Olson, J. Crawford, M. Avery, G. Sachse, S. Vay, S. Sandholm, H. W. Guan, T. Vaughn, J. Mastromarino, B. Heikes, J. Snow, J. Podolske, H. Singh

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Abstract

OH and HO₂ data collected on NASA's Pacific Exploratory Mission - Tropics B (PEM-Tropics B) are presented here and compared to results from a photochemical box model. PEM-Tropics B took place in the tropical Pacific in March and April of 1999 and examined photochemistry and sulfur chemistry in the remote tropical atmosphere. Altitude-resolved HO_x budgets are presented. The model showed good overall agreement with the data, with a mean model to observed ratio of 0.86 for OH and 1.03 for HO₂. The model tends to underpredict OH at higher altitudes and overpredict at low altitudes. The model agrees well with the HO₂ observations at middle altitudes but tends to overpredict slightly at high and low altitudes.

Original language	English (US)
Article number	2001JD900002
Pages (from-to)	32667-32681
Number of pages	15
Journal	Journal of Geophysical Research Atmospheres
Volume	106
Issue number	D23
DOIs	https://doi.org/10.1029/2001JD900002
State	Published - Dec 16 2001

All Science Journal Classification (ASJC) codes

Geophysics
Oceanography
Forestry
Aquatic Science
Ecology
Water Science and Technology
Soil Science
Geochemistry and Petrology
Earth-Surface Processes
Atmospheric Science
Space and Planetary Science
Earth and Planetary Sciences (miscellaneous)
Palaeontology

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Tan, D., Faloona, I., Simpas, J. B., Brune, W., Olson, J., Crawford, J., Avery, M., Sachse, G., Vay, S., Sandholm, S., Guan, H. W., Vaughn, T., Mastromarino, J., Heikes, B., Snow, J., Podolske, J., & Singh, H. (2001). OH and HO₂ in the tropical Pacific: Results from PEM-Tropics B. Journal of Geophysical Research Atmospheres, 106(D23), 32667-32681. Article 2001JD900002. https://doi.org/10.1029/2001JD900002

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title = "OH and HO2 in the tropical Pacific: Results from PEM-Tropics B",

abstract = "OH and HO2 data collected on NASA's Pacific Exploratory Mission - Tropics B (PEM-Tropics B) are presented here and compared to results from a photochemical box model. PEM-Tropics B took place in the tropical Pacific in March and April of 1999 and examined photochemistry and sulfur chemistry in the remote tropical atmosphere. Altitude-resolved HOx budgets are presented. The model showed good overall agreement with the data, with a mean model to observed ratio of 0.86 for OH and 1.03 for HO2. The model tends to underpredict OH at higher altitudes and overpredict at low altitudes. The model agrees well with the HO2 observations at middle altitudes but tends to overpredict slightly at high and low altitudes.",

author = "D. Tan and I. Faloona and Simpas, {J. B.} and W. Brune and J. Olson and J. Crawford and M. Avery and G. Sachse and S. Vay and S. Sandholm and Guan, {H. W.} and T. Vaughn and J. Mastromarino and B. Heikes and J. Snow and J. Podolske and H. Singh",

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month = dec,

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doi = "10.1029/2001JD900002",

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journal = "Journal of Geophysical Research Atmospheres",

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Tan, D, Faloona, I, Simpas, JB, Brune, W, Olson, J, Crawford, J, Avery, M, Sachse, G, Vay, S, Sandholm, S, Guan, HW, Vaughn, T, Mastromarino, J, Heikes, B, Snow, J, Podolske, J & Singh, H 2001, 'OH and HO₂ in the tropical Pacific: Results from PEM-Tropics B', Journal of Geophysical Research Atmospheres, vol. 106, no. D23, 2001JD900002, pp. 32667-32681. https://doi.org/10.1029/2001JD900002

TY - JOUR

T1 - OH and HO2 in the tropical Pacific

T2 - Results from PEM-Tropics B

AU - Tan, D.

AU - Faloona, I.

AU - Simpas, J. B.

AU - Brune, W.

AU - Olson, J.

AU - Crawford, J.

AU - Avery, M.

AU - Sachse, G.

AU - Vay, S.

AU - Sandholm, S.

AU - Guan, H. W.

AU - Vaughn, T.

AU - Mastromarino, J.

AU - Heikes, B.

AU - Snow, J.

AU - Podolske, J.

AU - Singh, H.

PY - 2001/12/16

Y1 - 2001/12/16

N2 - OH and HO2 data collected on NASA's Pacific Exploratory Mission - Tropics B (PEM-Tropics B) are presented here and compared to results from a photochemical box model. PEM-Tropics B took place in the tropical Pacific in March and April of 1999 and examined photochemistry and sulfur chemistry in the remote tropical atmosphere. Altitude-resolved HOx budgets are presented. The model showed good overall agreement with the data, with a mean model to observed ratio of 0.86 for OH and 1.03 for HO2. The model tends to underpredict OH at higher altitudes and overpredict at low altitudes. The model agrees well with the HO2 observations at middle altitudes but tends to overpredict slightly at high and low altitudes.

AB - OH and HO2 data collected on NASA's Pacific Exploratory Mission - Tropics B (PEM-Tropics B) are presented here and compared to results from a photochemical box model. PEM-Tropics B took place in the tropical Pacific in March and April of 1999 and examined photochemistry and sulfur chemistry in the remote tropical atmosphere. Altitude-resolved HOx budgets are presented. The model showed good overall agreement with the data, with a mean model to observed ratio of 0.86 for OH and 1.03 for HO2. The model tends to underpredict OH at higher altitudes and overpredict at low altitudes. The model agrees well with the HO2 observations at middle altitudes but tends to overpredict slightly at high and low altitudes.

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U2 - 10.1029/2001JD900002

DO - 10.1029/2001JD900002

M3 - Article

AN - SCOPUS:0035725642

SN - 0148-0227

VL - 106

SP - 32667

EP - 32681

JO - Journal of Geophysical Research Atmospheres

JF - Journal of Geophysical Research Atmospheres

IS - D23

M1 - 2001JD900002

ER -

OH and HO₂ in the tropical Pacific: Results from PEM-Tropics B

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