S. Y. Kim , R. Talbot , H. Mao , D. R. Blake , G. Huey , and A. J. Weinheimer
Atmospheric Mercury Depletion Events (MDEs) in Arctic springtime were investigated utilizing a box model based on airborne measurements from the NASA DC-8 during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) field campaign. Measurements showed that MDEs occurred near the surface and always over the Arctic Ocean accompanied by concurrent ozone (O3 ) depletion, enhancement in Br2 mixing ratios, and decreases in ethyne and light weight alkanes. Backward trajectories indicated that most air masses inside the MDEs originated at low altitude over the ocean presumably generating a halogen-rich environment. We developed a box model which considered only gas phase reactions of mercury, halogen species, and O3 chemistry. We conducted a series of sensitivity simulations to determine the factors that are of most importance to MDE formation. The box model results suggested that continuous enhancement of Br2 mixing ratios, a high intensity of solar radiation, or a relatively high NOx regime expedited Hg° depletion. These environments generated high concentrations of Br radical, and thus the model results indicated that the Br radical was very important for Hg° depletion. Utilizing different rate constants for reaction of Hg° + Br produced times to reach Hg° depletion ranging from 22 to 32 h.
Received: 01 Mar 2010 – Discussion started: 16 Apr 2010
Publisher's note : Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
S. Y. Kim , R. Talbot , H. Mao , D. R. Blake , G. Huey , and A. J. Weinheimer
Status: closed
Status: closed
AC : Author comment | RC : Referee comment | SC : Short comment | EC : Editor comment
- Printer-friendly version
- Supplement
Status: closed
Status: closed
AC : Author comment | RC : Referee comment | SC : Short comment | EC : Editor comment
- Printer-friendly version
- Supplement
S. Y. Kim , R. Talbot , H. Mao , D. R. Blake , G. Huey , and A. J. Weinheimer
S. Y. Kim , R. Talbot , H. Mao , D. R. Blake , G. Huey , and A. J. Weinheimer
Viewed
Total article views: 1,904 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
1,391
396
117
1,904
101
104
HTML: 1,391
PDF: 396
XML: 117
Total: 1,904
BibTeX: 101
EndNote: 104
Views and downloads (calculated since 01 Feb 2013)
Month
HTML
PDF
XML
Total
Feb 2013
5
10
2
17
Mar 2013
1
5
0
6
Apr 2013
5
7
0
12
May 2013
4
19
0
23
Jun 2013
4
6
0
10
Jul 2013
5
7
0
12
Aug 2013
2
5
1
8
Sep 2013
8
11
0
19
Oct 2013
4
6
1
11
Nov 2013
3
7
0
10
Dec 2013
11
6
0
17
Jan 2014
5
7
0
12
Feb 2014
8
9
2
19
Mar 2014
6
7
0
13
Apr 2014
4
5
0
9
May 2014
1
9
0
10
Jun 2014
1
9
0
10
Jul 2014
5
13
0
18
Aug 2014
6
13
3
22
Sep 2014
8
8
0
16
Oct 2014
4
7
0
11
Nov 2014
21
9
0
30
Dec 2014
4
8
0
12
Jan 2015
2
3
0
5
Feb 2015
8
2
3
13
Mar 2015
9
1
0
10
Apr 2015
13
8
0
21
May 2015
3
2
0
5
Jun 2015
5
0
5
Jul 2015
9
11
1
21
Aug 2015
4
1
3
8
Sep 2015
1
1
2
Oct 2015
6
2
0
8
Nov 2015
11
2
8
21
Dec 2015
2
5
6
13
Jan 2016
16
5
2
23
Feb 2016
15
6
1
22
Mar 2016
6
4
0
10
Apr 2016
6
3
0
9
May 2016
11
1
1
13
Jun 2016
6
0
6
Jul 2016
7
1
8
Aug 2016
4
6
0
10
Sep 2016
4
1
5
Oct 2016
4
5
9
Nov 2016
3
1
8
12
Dec 2016
5
2
2
9
Jan 2017
6
2
8
Feb 2017
10
1
11
Mar 2017
26
1
5
32
Apr 2017
25
4
7
36
May 2017
35
1
5
41
Jun 2017
28
1
29
Jul 2017
6
0
6
Aug 2017
2
1
0
3
Sep 2017
4
2
0
6
Oct 2017
2
1
0
3
Nov 2017
3
0
3
Dec 2017
4
1
0
5
Jan 2018
6
4
0
10
Feb 2018
5
0
5
Mar 2018
7
2
0
9
Apr 2018
6
3
0
9
May 2018
9
3
0
12
Jun 2018
4
3
2
9
Jul 2018
3
1
0
4
Aug 2018
8
3
2
13
Sep 2018
1
1
0
2
Oct 2018
8
5
0
13
Nov 2018
3
2
0
5
Dec 2018
5
1
0
6
Jan 2019
2
3
0
5
Feb 2019
2
0
2
Mar 2019
3
2
0
5
Apr 2019
2
2
0
4
May 2019
5
0
5
Jun 2019
4
1
0
5
Jul 2019
2
1
1
4
Aug 2019
3
0
3
Sep 2019
4
1
0
5
Oct 2019
4
1
0
5
Nov 2019
5
1
3
9
Dec 2019
1
1
0
2
Jan 2020
6
3
0
9
Feb 2020
2
1
1
4
Mar 2020
2
2
1
5
Apr 2020
2
0
2
May 2020
3
1
1
5
Jun 2020
9
1
10
Jul 2020
11
2
3
16
Aug 2020
1
2
3
6
Sep 2020
4
1
0
5
Oct 2020
3
3
1
7
Nov 2020
8
4
0
12
Dec 2020
6
0
6
Jan 2021
6
2
0
8
Feb 2021
4
1
0
5
Mar 2021
3
0
3
Apr 2021
8
0
8
May 2021
7
2
0
9
Jun 2021
7
1
8
Jul 2021
7
0
7
Aug 2021
9
0
9
Sep 2021
10
2
1
13
Oct 2021
12
2
0
14
Nov 2021
8
3
0
11
Dec 2021
10
1
0
11
Jan 2022
9
2
0
11
Feb 2022
7
1
0
8
Mar 2022
7
0
7
Apr 2022
7
0
7
May 2022
6
0
6
Jun 2022
3
0
3
Jul 2022
2
0
2
Aug 2022
8
2
1
11
Sep 2022
10
1
11
Oct 2022
3
1
0
4
Nov 2022
5
2
0
7
Dec 2022
16
2
1
19
Jan 2023
34
1
0
35
Feb 2023
27
3
1
31
Mar 2023
39
0
39
Apr 2023
32
2
0
34
May 2023
31
0
31
Jun 2023
26
0
26
Jul 2023
29
1
1
31
Aug 2023
27
3
1
31
Sep 2023
12
1
1
14
Oct 2023
6
0
6
Nov 2023
8
1
3
12
Dec 2023
8
1
0
9
Jan 2024
7
1
0
8
Feb 2024
10
3
0
13
Mar 2024
20
5
1
26
Apr 2024
27
4
7
38
May 2024
40
0
40
Jun 2024
53
3
2
58
Jul 2024
30
5
2
37
Aug 2024
36
2
0
38
Sep 2024
39
2
1
42
Oct 2024
32
0
32
Nov 2024
37
1
0
38
Dec 2024
16
1
0
17
Cumulative views and downloads
(calculated since 01 Feb 2013)
Month
HTML views
PDF downloads
XML downloads
Feb 2013
5
10
2
Mar 2013
6
15
2
Apr 2013
11
22
2
May 2013
15
41
2
Jun 2013
19
47
2
Jul 2013
24
54
2
Aug 2013
26
59
3
Sep 2013
34
70
3
Oct 2013
38
76
4
Nov 2013
41
83
4
Dec 2013
52
89
4
Jan 2014
57
96
4
Feb 2014
65
105
6
Mar 2014
71
112
6
Apr 2014
75
117
6
May 2014
76
126
6
Jun 2014
77
135
6
Jul 2014
82
148
6
Aug 2014
88
161
9
Sep 2014
96
169
9
Oct 2014
100
176
9
Nov 2014
121
185
9
Dec 2014
125
193
9
Jan 2015
127
196
9
Feb 2015
135
198
12
Mar 2015
144
199
12
Apr 2015
157
207
12
May 2015
160
209
12
Jun 2015
165
209
12
Jul 2015
174
220
13
Aug 2015
178
221
16
Sep 2015
178
222
17
Oct 2015
184
224
17
Nov 2015
195
226
25
Dec 2015
197
231
31
Jan 2016
213
236
33
Feb 2016
228
242
34
Mar 2016
234
246
34
Apr 2016
240
249
34
May 2016
251
250
35
Jun 2016
257
250
35
Jul 2016
264
250
36
Aug 2016
268
256
36
Sep 2016
272
256
37
Oct 2016
276
256
42
Nov 2016
279
257
50
Dec 2016
284
259
52
Jan 2017
290
259
54
Feb 2017
300
259
55
Mar 2017
326
260
60
Apr 2017
351
264
67
May 2017
386
265
72
Jun 2017
414
265
73
Jul 2017
420
265
73
Aug 2017
422
266
73
Sep 2017
426
268
73
Oct 2017
428
269
73
Nov 2017
431
269
73
Dec 2017
435
270
73
Jan 2018
441
274
73
Feb 2018
446
274
73
Mar 2018
453
276
73
Apr 2018
459
279
73
May 2018
468
282
73
Jun 2018
472
285
75
Jul 2018
475
286
75
Aug 2018
483
289
77
Sep 2018
484
290
77
Oct 2018
492
295
77
Nov 2018
495
297
77
Dec 2018
500
298
77
Jan 2019
502
301
77
Feb 2019
504
301
77
Mar 2019
507
303
77
Apr 2019
509
305
77
May 2019
514
305
77
Jun 2019
518
306
77
Jul 2019
520
307
78
Aug 2019
523
307
78
Sep 2019
527
308
78
Oct 2019
531
309
78
Nov 2019
536
310
81
Dec 2019
537
311
81
Jan 2020
543
314
81
Feb 2020
545
315
82
Mar 2020
547
317
83
Apr 2020
549
317
83
May 2020
552
318
84
Jun 2020
561
318
85
Jul 2020
572
320
88
Aug 2020
573
322
91
Sep 2020
577
323
91
Oct 2020
580
326
92
Nov 2020
588
330
92
Dec 2020
594
330
92
Jan 2021
600
332
92
Feb 2021
604
333
92
Mar 2021
607
333
92
Apr 2021
615
333
92
May 2021
622
335
92
Jun 2021
629
335
93
Jul 2021
636
335
93
Aug 2021
645
335
93
Sep 2021
655
337
94
Oct 2021
667
339
94
Nov 2021
675
342
94
Dec 2021
685
343
94
Jan 2022
694
345
94
Feb 2022
701
346
94
Mar 2022
708
346
94
Apr 2022
715
346
94
May 2022
721
346
94
Jun 2022
721
349
94
Jul 2022
723
349
94
Aug 2022
731
351
95
Sep 2022
741
351
96
Oct 2022
744
352
96
Nov 2022
749
354
96
Dec 2022
765
356
97
Jan 2023
799
357
97
Feb 2023
826
360
98
Mar 2023
865
360
98
Apr 2023
897
362
98
May 2023
928
362
98
Jun 2023
954
362
98
Jul 2023
983
363
99
Aug 2023
1,010
366
100
Sep 2023
1,022
367
101
Oct 2023
1,028
367
101
Nov 2023
1,036
368
104
Dec 2023
1,044
369
104
Jan 2024
1,051
370
104
Feb 2024
1,061
373
104
Mar 2024
1,081
378
105
Apr 2024
1,108
382
112
May 2024
1,148
382
112
Jun 2024
1,201
385
114
Jul 2024
1,231
390
116
Aug 2024
1,267
392
116
Sep 2024
1,306
394
117
Oct 2024
1,338
394
117
Nov 2024
1,375
395
117
Dec 2024
1,391
396
117
Cited
Saved
Latest update: 13 Dec 2024