1966 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	170.3	171.2	175.8	177.0	175.6	173.9	172.0	171.0	168.9	169.6	173.4	174.4	176.2	180.1	180.9	181.6	182.6	183.2	182.5	181.8	183.7	186.5	186.9	184.6	181.4	181.3	184.4	188.2	190.5	194.0	-9999.0
34	Hudson Bay	208.3	206.8	207.0	206.9	207.9	206.0	199.7	191.2	188.8	192.5	199.8	211.8	212.6	213.4	213.3	209.9	200.9	194.3	196.1	205.5	202.6	208.0	225.5	220.4	191.4	175.6	181.1	189.4	190.2	189.1	-9999.0
36	Hudson Strait	202.2	211.1	207.3	216.5	224.6	219.1	209.1	202.4	197.6	196.9	188.6	183.6	183.3	190.2	188.7	197.9	200.4	198.7	205.7	221.3	225.6	181.0	179.0	203.7	210.8	165.8	147.6	155.0	166.6	176.0	-9999.0
98	Bering Strait	167.8	174.8	189.7	194.6	179.0	182.5	192.5	191.5	179.5	179.3	182.9	172.9	159.7	158.1	162.1	167.7	182.0	194.5	191.2	168.7	165.0	164.6	162.2	163.7	160.6	169.2	190.3	200.8	204.8	201.3	-9999.0
128	Arctic subocean	106.7	108.3	114.9	117.5	117.0	106.9	110.5	114.8	112.0	118.2	125.5	119.6	123.0	132.1	129.1	125.8	116.6	115.9	112.1	115.5	125.0	133.2	132.6	128.1	124.0	123.4	124.3	132.7	136.0	141.8	-9999.0
130	Chukchi Sea	156.6	157.1	175.3	186.0	171.8	171.6	182.5	194.6	208.5	205.3	182.1	155.4	145.5	138.3	141.1	154.8	158.1	161.2	156.4	145.5	145.6	146.4	146.3	141.1	142.4	161.3	195.3	212.4	214.3	213.4	-9999.0
132	Beaufort Sea	196.5	196.3	202.5	210.0	212.3	200.9	188.8	177.5	165.0	163.1	170.2	171.4	170.6	170.3	171.2	167.4	164.8	170.2	179.1	180.7	188.0	190.6	183.3	171.5	172.1	170.7	163.5	168.5	172.6	182.9	-9999.0
134	Arctic Archipelago	176.6	179.2	177.6	174.7	169.5	155.8	143.0	141.6	144.3	142.7	139.9	140.6	137.8	142.6	143.6	142.3	141.3	142.1	146.8	147.2	151.7	143.9	131.5	128.9	134.1	136.4	141.2	146.8	148.0	156.0	-9999.0
136	Foxe Basin	201.2	202.1	193.7	195.3	194.8	182.0	163.0	145.4	143.6	151.6	160.7	163.4	169.9	158.3	175.4	180.1	162.2	155.3	169.4	184.2	167.1	148.9	154.1	144.7	133.4	125.8	133.1	137.9	139.8	139.2	-9999.0
138	Baffin Bay	109.0	103.7	102.9	111.0	118.6	126.2	128.2	123.2	110.9	110.4	106.7	108.1	121.3	132.9	110.3	110.3	121.1	119.9	114.0	120.4	136.5	146.9	132.7	116.7	115.1	123.7	124.5	126.8	134.9	141.4	-9999.0
139	South Greenland	153.4	136.9	133.2	132.4	142.0	151.9	152.7	151.0	142.7	139.5	136.0	150.4	176.5	167.7	154.1	140.9	144.1	143.0	134.1	133.8	148.3	156.7	161.2	164.2	160.7	161.4	161.2	163.4	164.6	164.0	-9999.0
140	Greenland Sea	97.4	98.8	103.1	106.5	112.4	102.4	119.5	125.0	108.2	108.7	113.0	106.2	121.8	138.9	125.3	104.7	102.8	109.3	100.1	98.0	106.4	136.4	137.9	138.7	134.2	146.4	145.9	145.1	143.7	143.7	-9999.0
142	Norwegian Sea	204.5	205.0	210.9	214.8	220.8	220.2	215.0	208.1	202.9	194.2	180.2	181.4	185.3	190.3	186.5	184.0	191.7	193.2	197.2	198.1	203.3	205.6	211.6	222.4	222.4	231.1	234.6	237.7	243.8	247.9	-9999.0
144	Barents Sea	223.1	224.9	219.9	220.3	213.5	216.6	216.2	211.1	201.3	191.5	198.3	193.0	188.5	188.2	187.7	196.8	192.1	191.7	207.6	222.1	221.7	218.0	216.5	212.5	208.8	216.2	221.8	215.8	215.0	221.1	-9999.0
146	Kara Sea	169.6	176.3	184.8	181.6	174.6	167.9	163.9	168.7	177.3	183.2	186.3	182.4	184.3	194.5	199.2	199.9	203.5	209.1	203.5	194.0	196.0	203.9	202.9	200.3	203.2	206.3	208.7	213.4	219.1	225.7	-9999.0
148	Laptev Sea	136.6	129.1	136.0	140.4	142.9	150.4	154.3	156.1	153.7	151.1	153.0	158.4	160.6	167.8	179.1	190.1	194.7	186.5	181.9	183.0	183.0	182.7	183.2	182.2	181.8	181.8	183.5	181.7	176.9	177.9	-9999.0
150	East Siberian Sea	136.9	138.5	140.9	148.3	158.1	157.5	161.8	167.3	159.1	163.2	187.4	195.3	195.8	185.6	168.8	154.4	148.9	147.3	157.2	169.3	171.1	171.3	166.5	170.8	174.8	176.1	179.2	185.8	191.0	192.8	-9999.0
152	Gulf of Alaska	195.8	210.2	223.4	217.0	201.8	207.4	212.3	209.1	200.4	185.9	193.0	186.9	183.0	188.3	193.4	204.6	222.4	232.5	223.4	205.7	198.3	193.8	185.5	190.9	187.0	194.6	214.1	213.7	210.5	205.2	-9999.0
154	Southeast Bering Sea	179.3	208.1	219.9	193.3	191.5	218.8	223.0	220.3	218.8	213.1	196.8	176.1	177.1	184.3	178.2	213.1	232.8	236.9	210.4	188.9	169.3	165.5	172.9	191.2	202.7	226.1	226.6	222.1	224.3	219.9	-9999.0