1956 12 - daily  - mean of NCEP mean Daily Downward Longwave Radiation Flux at surface, W/m^2.
BasinID	Name	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
0	Pan Arctic	194.0	190.1	181.9	179.6	180.1	180.4	181.2	179.7	179.8	175.1	176.7	177.3	176.4	176.0	174.8	171.8	167.4	173.1	177.7	180.3	182.0	179.2	182.3	184.2	192.2	189.8	185.1	183.8	184.9	180.6	177.6
34	Hudson Bay	230.1	228.4	191.6	184.7	181.4	172.4	159.2	157.4	174.9	178.6	170.8	162.1	154.9	168.5	182.2	175.9	151.4	193.5	205.3	209.2	186.3	182.3	202.3	195.0	205.3	220.8	217.4	201.6	188.7	193.8	171.7
36	Hudson Strait	173.9	160.3	165.2	170.4	169.8	177.3	160.3	167.6	152.3	151.8	133.7	141.2	135.2	140.6	132.3	198.5	159.1	147.9	129.1	132.7	135.8	136.5	165.4	162.4	169.8	145.9	134.5	166.8	172.6	169.2	227.7
98	Bering Strait	189.8	184.2	184.8	191.0	205.6	192.3	175.4	162.2	148.2	137.9	139.4	151.1	152.0	145.1	148.9	153.5	157.1	145.3	166.9	177.2	175.9	158.8	158.9	171.7	182.4	179.7	186.3	200.3	214.4	197.8	179.3
128	Arctic subocean	149.7	141.9	134.8	138.4	134.8	116.5	121.6	140.5	138.7	146.5	132.1	133.0	136.1	130.1	128.7	152.8	145.7	137.4	136.7	144.8	145.2	139.5	133.4	126.8	136.2	138.3	137.8	129.2	118.5	132.6	128.8
130	Chukchi Sea	204.3	236.9	207.4	204.1	206.8	201.0	195.6	190.1	178.5	144.8	159.9	174.1	174.1	156.8	142.5	138.0	135.8	130.7	136.1	155.5	159.5	164.4	149.2	135.4	140.1	157.5	147.8	138.9	146.0	121.9	120.9
132	Beaufort Sea	229.3	190.9	157.9	161.2	169.8	186.5	178.3	159.0	164.6	166.6	156.4	155.4	169.2	161.3	150.2	138.5	170.8	190.1	187.5	185.5	196.7	194.3	188.5	207.9	222.8	219.2	209.5	229.3	246.5	214.0	204.2
134	Arctic Archipelago	175.5	171.1	152.0	150.2	155.8	147.6	139.0	156.2	157.0	141.3	148.5	144.7	137.4	145.6	146.8	137.9	129.0	132.4	133.5	140.9	156.6	153.9	156.9	151.9	158.2	157.9	144.7	130.2	132.9	144.3	155.3
136	Foxe Basin	152.6	146.8	165.2	190.9	178.6	162.0	158.3	147.7	145.1	144.9	143.7	129.6	132.9	145.9	140.0	142.0	151.4	149.5	147.8	144.9	134.6	145.5	151.6	152.3	138.1	137.8	147.3	157.1	142.3	150.0	169.7
138	Baffin Bay	123.2	123.9	123.2	119.3	118.7	118.0	125.7	130.5	129.7	138.3	129.0	125.1	117.6	119.0	116.0	116.8	127.5	118.8	139.8	142.7	144.8	118.5	117.2	102.6	144.0	149.4	132.3	113.1	146.0	139.0	124.6
139	South Greenland	152.2	145.9	157.7	139.0	125.1	135.2	168.5	165.5	180.1	169.4	167.4	163.6	162.8	154.5	160.3	151.9	139.8	152.1	170.9	164.0	164.4	157.5	153.8	165.3	197.7	168.0	154.8	186.8	200.8	174.6	177.5
140	Greenland Sea	185.9	173.9	130.1	130.2	119.0	108.6	123.8	161.2	151.0	160.1	166.7	156.9	143.1	150.4	168.8	177.8	140.8	113.1	124.8	143.6	174.5	145.5	160.3	151.4	177.9	179.8	137.9	118.6	152.0	149.4	130.7
142	Norwegian Sea	251.4	257.0	232.3	249.1	255.1	243.8	240.0	270.4	267.2	262.4	283.0	250.1	253.0	251.5	267.0	261.6	257.8	268.2	261.0	258.8	232.2	219.6	207.3	207.3	216.8	211.5	218.0	222.0	226.3	230.7	243.3
144	Barents Sea	225.5	230.0	237.2	241.5	241.7	232.0	225.3	221.5	223.1	220.6	204.7	210.0	218.6	212.9	222.6	232.4	250.6	260.6	254.8	239.9	226.5	210.1	214.3	228.5	235.6	207.4	219.8	222.5	215.5	220.4	223.0
146	Kara Sea	201.3	198.0	193.5	195.6	196.3	203.3	203.4	209.3	209.7	198.3	198.7	197.7	195.2	186.3	179.4	183.0	181.5	182.8	189.1	195.2	206.3	208.6	210.6	207.8	204.7	200.3	193.4	185.4	184.9	185.3	187.2
148	Laptev Sea	164.8	166.1	168.0	163.6	163.5	157.6	166.4	169.5	166.1	162.6	190.9	195.4	193.5	202.8	197.5	176.2	158.2	158.6	155.1	157.0	156.0	155.0	153.4	164.3	172.8	170.2	173.1	169.4	163.8	166.0	164.5
150	East Siberian Sea	177.9	198.0	226.3	193.9	189.3	201.8	245.3	205.4	171.9	169.6	174.4	198.6	202.8	197.6	172.2	152.1	161.1	149.3	140.4	143.1	153.4	161.8	156.5	142.3	142.9	147.3	152.2	144.8	136.1	130.2	138.4
152	Gulf of Alaska	189.7	169.0	176.6	181.7	187.8	194.6	179.0	162.0	154.6	158.2	165.3	167.5	162.6	168.2	182.2	210.4	217.2	193.3	234.1	219.5	191.0	208.8	223.5	241.7	236.2	247.8	238.2	279.2	263.7	258.1	241.4
154	Southeast Bering Sea	171.7	190.7	183.7	203.4	222.8	220.4	182.2	150.3	168.9	166.1	141.6	138.0	145.6	165.2	222.9	239.3	197.2	156.3	142.8	131.3	153.0	174.8	168.6	184.7	215.1	218.8	198.9	229.1	248.3	193.4	184.7