1963 04 - daily  - mean of NCEP mean Daily Clear Sky Downward Longwave 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	155.1	151.3	155.3	161.6	167.3	170.9	176.6	179.6	179.5	181.4	182.1	183.0	185.5	187.2	190.0	188.5	185.1	186.2	188.9	190.2	190.8	189.8	188.2	186.7	186.7	189.1	193.3	197.4	197.5	199.1	-9999.0
34	Hudson Bay	188.2	181.5	185.6	186.3	193.6	200.1	206.3	206.2	204.4	211.3	213.0	215.2	220.2	228.5	235.0	229.7	210.1	209.2	213.9	209.2	205.7	204.7	210.4	217.7	221.3	224.8	239.4	240.8	220.0	206.7	-9999.0
36	Hudson Strait	150.2	146.5	139.0	161.0	175.4	188.2	217.8	223.7	221.7	212.0	190.1	179.0	176.6	193.5	202.4	204.5	213.3	226.3	209.0	205.7	211.1	208.9	204.7	203.7	192.8	182.1	183.4	207.6	203.1	178.0	-9999.0
98	Bering Strait	173.7	158.2	174.0	185.8	196.1	192.5	180.2	177.4	177.5	166.8	163.2	168.5	172.4	173.9	180.1	182.2	169.9	169.9	175.8	181.6	200.4	206.5	192.2	180.2	184.3	192.2	199.3	205.4	209.3	212.8	-9999.0
128	Arctic subocean	117.9	111.3	109.0	113.9	112.1	118.3	112.6	109.6	133.3	154.4	169.6	165.3	148.5	155.8	154.3	145.3	133.3	131.3	140.2	140.5	138.3	139.7	130.4	127.0	128.9	130.8	127.0	121.0	123.9	142.3	-9999.0
130	Chukchi Sea	183.9	190.1	194.1	210.5	215.8	204.0	184.2	179.5	153.5	134.3	135.7	141.2	149.8	148.3	154.0	155.2	165.1	173.6	171.9	171.0	181.0	187.6	177.1	167.8	174.4	188.4	196.6	208.1	199.7	195.9	-9999.0
132	Beaufort Sea	155.4	159.2	164.5	184.8	181.8	183.5	185.2	186.1	191.7	198.6	204.3	205.1	208.4	210.2	219.2	212.5	199.5	200.2	197.1	193.3	194.3	210.7	218.7	212.1	212.2	217.3	213.0	211.3	221.2	232.9	-9999.0
134	Arctic Archipelago	122.2	127.9	125.6	129.2	130.7	129.8	146.1	161.9	166.2	183.4	192.7	190.9	191.3	187.6	179.7	179.0	173.4	178.2	183.9	180.5	177.9	177.8	180.0	183.8	183.9	176.7	167.7	156.6	156.8	160.5	-9999.0
136	Foxe Basin	109.7	126.4	136.7	138.7	141.3	153.4	171.1	190.1	189.8	175.0	170.7	177.6	170.3	170.5	188.2	194.2	199.9	186.0	176.5	176.2	178.1	178.6	171.6	166.8	159.0	162.4	174.4	181.2	177.2	170.4	-9999.0
138	Baffin Bay	117.4	110.2	127.8	127.4	135.4	135.8	132.2	120.5	124.7	138.6	144.4	145.9	144.8	142.2	141.5	138.2	130.1	118.9	121.2	122.6	120.4	121.9	120.0	126.9	127.8	129.9	120.1	115.9	115.6	121.5	-9999.0
139	South Greenland	146.5	145.1	163.8	163.4	173.5	162.3	182.0	183.0	161.2	141.9	139.1	142.4	154.8	146.3	148.2	141.2	139.7	145.3	145.6	147.2	137.0	142.9	157.5	156.7	153.9	154.2	150.7	150.4	149.1	147.6	-9999.0
140	Greenland Sea	134.7	133.6	136.8	148.2	143.9	141.1	137.6	117.6	89.3	109.0	128.6	135.0	137.1	124.9	134.3	120.0	110.7	99.3	102.2	111.3	117.0	118.8	143.4	147.3	132.7	123.2	118.7	108.1	101.7	107.3	-9999.0
142	Norwegian Sea	211.9	223.1	220.2	210.1	207.6	220.8	223.8	208.9	199.2	200.8	227.4	238.3	225.4	221.5	222.8	222.8	215.4	217.3	223.0	224.7	220.3	223.5	229.6	233.7	237.6	240.0	243.1	245.0	245.6	238.6	-9999.0
144	Barents Sea	174.5	183.8	186.5	191.3	190.6	182.3	188.0	192.6	193.1	197.8	201.5	208.3	213.9	221.7	221.3	222.2	227.8	221.2	223.3	222.3	219.2	194.0	188.8	199.3	216.8	233.5	237.6	227.2	224.4	236.9	-9999.0
146	Kara Sea	142.3	142.5	151.5	160.4	172.4	183.5	192.3	196.6	198.5	197.6	191.2	184.9	181.3	181.3	184.7	190.7	197.2	201.3	204.4	206.2	201.7	196.5	186.9	179.1	180.3	185.9	195.3	209.8	213.4	210.0	-9999.0
148	Laptev Sea	152.9	134.5	120.9	123.1	127.6	133.4	141.3	152.8	157.6	162.0	167.6	173.0	182.0	179.8	176.3	173.7	173.2	174.4	177.1	181.3	190.1	188.5	186.9	185.5	171.9	166.3	169.8	177.0	183.1	193.9	-9999.0
150	East Siberian Sea	160.2	156.4	162.9	156.4	150.1	144.4	135.4	130.3	132.6	139.5	143.8	147.7	154.8	172.5	175.7	164.5	157.5	158.4	166.2	173.0	173.5	173.8	176.7	185.6	190.2	188.7	183.2	177.6	186.8	205.6	-9999.0
152	Gulf of Alaska	185.4	166.2	175.3	185.8	194.5	195.3	197.5	204.6	211.4	194.7	191.2	196.3	204.2	204.3	204.4	190.3	176.1	170.2	180.9	198.2	220.8	225.8	205.9	197.7	203.5	213.5	221.9	216.0	224.1	215.8	-9999.0
154	Southeast Bering Sea	192.3	186.2	183.3	199.3	192.7	196.6	199.0	211.8	186.5	161.0	153.9	188.4	174.9	166.9	163.3	159.0	163.1	181.6	197.9	218.3	231.4	222.3	205.8	188.8	221.6	215.5	218.3	219.6	213.7	214.1	-9999.0