1987 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	193.8	193.0	190.3	190.5	193.5	192.2	193.6	193.0	187.3	189.1	189.1	190.8	191.4	189.5	183.7	179.8	181.7	185.5	185.1	185.0	181.7	175.5	175.2	177.5	178.2	174.7	169.8	171.8	176.3	178.3	176.9
34	Hudson Bay	209.4	211.5	207.6	210.8	222.0	221.5	233.5	242.5	224.7	229.0	236.5	235.4	219.4	203.8	192.0	185.6	190.2	204.1	216.4	219.2	212.0	198.8	190.3	181.8	187.8	207.7	195.4	192.0	188.9	183.2	182.1
36	Hudson Strait	241.9	252.2	255.5	230.5	205.6	177.4	181.8	191.7	173.5	177.4	187.2	181.6	169.4	179.6	179.4	163.3	168.7	166.4	146.2	166.2	210.4	213.4	187.2	184.1	181.0	176.9	180.8	174.9	169.1	171.3	180.5
98	Bering Strait	189.8	188.5	192.6	184.9	168.2	171.4	183.4	188.3	187.6	171.5	164.2	180.9	194.0	191.2	185.7	202.5	210.4	201.0	194.7	212.5	190.0	172.7	199.8	232.9	217.7	198.3	180.3	183.9	230.2	235.9	213.7
128	Arctic subocean	144.5	132.1	134.9	159.1	165.7	162.9	161.7	141.0	147.7	161.9	156.7	150.0	133.4	125.8	123.7	133.9	138.9	129.6	112.5	108.2	118.4	118.6	123.8	119.5	132.1	127.4	131.9	124.5	108.4	122.5	122.3
130	Chukchi Sea	150.5	152.7	180.7	173.7	175.3	169.4	167.7	183.8	184.7	152.3	140.9	148.8	162.8	167.9	172.6	193.0	184.9	167.8	156.2	176.7	177.2	144.8	145.7	193.1	200.1	155.0	146.0	215.4	246.8	249.3	226.6
132	Beaufort Sea	207.5	212.0	203.4	211.7	203.6	206.6	229.3	206.7	197.6	210.3	218.3	210.1	201.7	212.5	201.3	181.6	192.9	223.0	200.4	194.9	209.2	198.8	193.8	217.3	241.8	219.2	215.4	207.4	197.6	205.5	201.5
134	Arctic Archipelago	213.8	194.0	190.5	183.8	191.9	201.6	190.1	191.7	196.2	201.0	202.0	193.9	190.1	179.5	157.2	155.5	157.1	168.6	172.5	169.4	152.6	151.2	156.5	144.0	151.7	157.0	158.8	173.0	163.1	162.4	162.6
136	Foxe Basin	189.8	221.2	212.5	187.4	149.7	150.6	191.2	212.7	204.5	163.7	162.6	181.8	180.6	180.8	166.2	146.6	179.5	159.0	175.8	186.5	194.5	209.9	207.3	198.8	180.1	160.7	150.5	145.4	157.9	190.4	184.8
138	Baffin Bay	153.9	150.1	130.6	125.8	129.3	155.0	161.7	150.7	128.9	130.2	139.0	159.5	147.0	129.5	115.2	108.6	100.2	92.4	101.8	109.9	99.5	100.5	112.4	110.3	114.5	113.4	115.2	117.9	108.9	103.7	107.5
139	South Greenland	193.1	193.3	162.7	169.3	192.9	185.2	191.2	180.5	180.7	204.6	173.9	167.9	171.6	180.9	148.0	131.1	147.0	152.0	166.6	177.3	164.5	132.3	130.0	132.3	129.3	146.2	145.8	156.6	152.1	138.8	130.4
140	Greenland Sea	112.6	127.6	106.2	99.7	129.8	145.5	141.4	145.5	136.2	131.7	130.0	112.6	101.3	109.4	115.7	118.7	123.0	124.8	113.3	113.8	129.1	116.0	96.7	89.7	93.9	114.3	104.1	102.1	104.5	95.9	91.6
142	Norwegian Sea	264.7	258.1	273.4	256.9	248.5	212.3	212.0	257.1	269.1	247.2	226.0	259.7	253.0	225.2	228.4	226.6	241.1	251.4	251.6	244.1	231.0	268.3	265.4	293.3	278.1	234.1	231.1	221.0	240.8	227.3	229.2
144	Barents Sea	250.2	233.4	214.5	237.6	223.2	211.1	209.0	233.9	233.0	207.8	193.4	196.1	190.7	190.5	197.2	203.6	208.0	205.3	190.8	192.1	185.4	194.3	187.2	189.2	230.3	242.9	220.0	210.9	186.0	190.4	197.8
146	Kara Sea	190.5	197.6	206.0	203.1	202.4	199.3	190.9	187.2	191.4	202.9	212.3	214.1	222.2	223.2	217.5	200.7	199.5	207.3	207.5	194.7	193.6	187.3	189.1	190.8	181.8	171.2	171.2	181.2	194.7	195.5	194.1
148	Laptev Sea	180.5	168.1	166.6	170.3	186.3	179.1	171.4	168.2	156.7	148.1	136.3	148.7	153.5	146.5	157.0	165.1	163.5	151.6	150.2	161.2	159.3	162.5	153.2	146.2	143.3	140.7	140.1	129.5	133.1	139.6	145.3
150	East Siberian Sea	166.6	159.5	147.9	143.1	145.9	150.2	153.7	145.8	134.9	138.6	139.3	132.2	152.9	166.4	150.1	163.9	153.5	148.4	149.7	149.0	147.0	140.2	141.0	145.7	134.6	130.8	127.3	129.4	137.6	162.0	167.3
152	Gulf of Alaska	224.0	236.5	227.0	208.2	206.5	208.5	237.1	245.4	224.8	209.2	214.0	213.4	217.6	198.5	184.6	235.8	244.2	223.2	255.5	248.2	212.0	204.5	264.6	279.2	255.5	229.0	201.6	196.2	236.4	238.7	211.6
154	Southeast Bering Sea	158.0	156.7	177.5	167.3	177.5	199.2	179.1	215.2	201.2	189.4	180.0	164.5	158.8	161.1	211.6	258.4	218.8	230.3	255.0	226.5	173.7	199.0	275.1	271.2	254.0	195.8	193.0	255.3	285.1	248.5	240.1