Continuing development in the regime of decreased atmospheric column OH at Fritz Peak, Colorado

被引：8

作者：

Burnett, CR ^{[1
]}

Minschwaner, K ^{[1
]}

机构：

[1] New Mexico Inst Min & Technol, Geophys Res Ctr, Socorro, NM 87801 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 1998年 / 25卷 / 09期

关键词：

D O I：

10.1029/98GL01062

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A new regime of reduced hydroxyl (OH) column abundances at Fritz Peak Observatory, first observed in the fall of 1991, continues to develop. Beginning in 1991, morning OH abundances in the fall season at Fritz Peak (40 degrees N, 105 degrees W) were found to be about 15% lower than the previous 1980-1990 average. Measurements for July-October 1997 indicate a continued regime of depressed (25-30%) OH abundances. The August-October afternoon abundances were also low in 1997, yielding a PM-AM asymmetry of about 6% which is near the annual average for Fritz Peak. This is the first occasion since 1980 that the fall PM-AM difference of about 35% has not appeared. The winter season maximum of 15%, a persistent feature of the 1980-1990 measurement record, also failed to appear in 1996-97.

引用

页码：1313 / 1316

页数：4

共 16 条

[1] The regime of decreased OH vertical column abundances at Fritz Peak Observatory, CO: 1991-1995 [J].

Burnett, CR ;

Burnett, EB .

GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (15) :1925-1927

[2] PERIODIC BEHAVIORS IN THE OBSERVED VERTICAL COLUMN ABUNDANCES OF ATMOSPHERIC HYDROXYL [J].

BURNETT, EB ;

BURNETT, CR ;

MINSCHWANER, KR .

GEOPHYSICAL RESEARCH LETTERS, 1989, 16 (11) :1285-1288

[3] ENHANCED PRODUCTION OF STRATOSPHERIC OH FROM METHANE OXIDATION AT ELEVATED REACTIVE CHLORINE LEVELS IN NORTHERN MIDLATITUDES [J].

BURNETT, EB ;

BURNETT, CR .

JOURNAL OF ATMOSPHERIC CHEMISTRY, 1995, 21 (01) :13-41

[4] Microwave observations and modeling of O-3, H2O, and HO2 in the mesosphere [J].

Clancy, R. Todd ;

Sandor, Brad J. ;

Rusch, David W. ;

Muhleman, Duane O. .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1994, 99 (D3) :5465-5473

[5] Satellite measurements of hydroxyl in the mesosphere [J].

Conway, RR ;

Stevens, MH ;

Cardon, JG ;

Zasadil, SE ;

Brown, CM ;

Morrill, JS ;

Mount, GH .

GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (16) :2093-2096

[6]

IWAGAMI N, 1995, UNPUB J ATMOS CHEM

[7] GROUND-BASED REMOTE-SENSING OF THE DECAY OF THE PINATUBO ERUPTION CLOUD AT 3 NORTHERN-HEMISPHERE SITES [J].

JAGER, H ;

UCHINO, O ;

NAGAI, T ;

FUJIMOTO, T ;

FREUDENTHALER, V ;

HOMBURG, F .

GEOPHYSICAL RESEARCH LETTERS, 1995, 22 (05) :607-610

[8] TRANSPORT OF THE PINATUBO VOLCANIC AEROSOL TO A NORTHERN MIDLATITUDE SITE [J].

LANGFORD, AO ;

OLEARY, TJ ;

PROFFITT, MH ;

HITCHMAN, MH .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1995, 100 (D5) :9007-9016

[9] Measurement of tropospheric OH by long-path laser absorption at Fritz Peak Observatory, Colorado, during the OH Photochemistry Experiment, Fall 1993 [J].

Mount, GH ;

Brault, JW ;

Johnston, PV ;

Marovich, E ;

Jakoubek, RO ;

Volpe, CJ ;

Harder, J ;

Olson, J .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D5) :6393-6413

[10] Anomalously low ozone over the Arctic [J].

Newman, PA ;

Gleason, JF ;

McPeters, RD ;

Stolarski, RS .

GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (22) :2689-2692

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