Scale Analysis of Blocking Events from 2002 to 2004: A Case Study of an Unusually Persistent Blocking Event Leading to a Heat Wave in the Gulf of Alaska during August 2004

Table 6

Same as Table 5 except for the year 2004.

Event no.	Start date	End date	Duration (days)	Planetary-scale dominance	Synoptic-scale dominance
1	27 Dec.	09 Jan.	13	Positive	Negative
2	02 Jan.	11 Jan.	9.5	Negative	Positive
3	23 Jan.	05 Feb.	13	Negative	Positive
4	18 Jan.	18 Feb.	31	Positive	Negative
5	10 Feb.	14 Mar.	31.5	Alternating	Alternating
6	14 Feb.	28 Feb.	14	Negative	Positive
7	28 Feb.	05 Mar.	5	Alternating	Alternating
8	15 Mar.	20 Mar.	5	Negative	Positive
9	17 Mar.	22 Mar.	5	Negative	Positive
10	22 Mar.	29 Mar.	7.5	Negative	Positive
11	26 Mar.	12 Apr.	17	Negative	Positive
12	11 Apr.	16 Apr.	5	Negative	Positive
13	14 Apr.	22 Apr.	7.5	Positive	Negative
14	16 Apr.	26 Apr.	10	Positive	Negative
15	20 Apr.	13 May	23	Alternating	Alternating
16	06 May	13 May	7.5	Negative	Positive
17	10 May	25 May	15.5	Positive	Negative
18	12 May	01 Jun.	20	Negative	Positive
19	05 Jun.	10 Jun.	5	Negative	Positive
20	26 Jun.	10 Jul.	14	Positive	Negative
21	02 Jul.	13 Jul.	10.5	Negative	Positive
22	06 Jul.	11 Jul.	5	Negative	Positive
23	12 Jul.	24 Jul.	11.5	Positive	Negative
24	27 Jul.	01 Aug.	5	Positive	Negative
25	27 Jul.	15 Aug.	18.5	Positive	Negative
26	05 Aug.	28 Aug.	23.5	Positive	Negative
27	09 Aug.	15 Aug.	6.5	Positive	Negative
28	06 Sep.	11 Sep.	5	Negative	Positive
29	08 Oct.	15 Oct.	7	Positive	Negative
30	12 Oct.	26 Oct.	14	Negative	Positive
31	18 Oct.	28 Oct.	10	Negative	Positive
32	02 Nov.	13 Nov.	11	Positive	Negative
33	04 Nov.	26 Nov.	22	Positive	Negative
34	21 Nov.	26 Nov.	5	Positive	Negative
35	09 Dec.	14 Dec.	5	Positive	Negative
36	19 Dec.	25 Dec.	6	Positive	Negative
37	19 Dec.	26 Dec.	7	Negative	Positive