1976 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	176.9	177.4	178.5	179.6	181.1	183.2	185.2	188.0	190.5	188.6	183.9	182.7	184.1	183.9	183.0	182.5	185.2	189.6	192.1	193.6	195.8	198.8	200.6	202.2	202.5	203.6	205.2	205.9	205.6	206.3	-9999.0
34	Hudson Bay	212.9	202.5	196.7	200.6	207.8	205.4	203.3	213.2	226.9	208.6	195.6	218.5	231.1	231.9	230.5	220.5	215.1	225.6	225.3	216.4	219.7	224.3	219.7	217.0	217.4	220.8	223.8	228.5	231.1	230.2	-9999.0
36	Hudson Strait	201.1	214.8	191.9	168.5	175.0	177.4	168.2	159.1	164.0	191.6	159.1	156.8	165.8	151.2	182.5	194.6	166.9	167.3	172.3	175.5	166.5	178.9	201.1	214.0	217.2	208.8	206.2	201.7	200.9	202.8	-9999.0
98	Bering Strait	163.8	175.0	172.9	176.2	170.9	163.6	162.6	166.4	184.8	191.7	189.6	182.6	178.8	168.4	160.9	169.1	176.3	179.9	182.0	182.4	182.9	184.1	185.7	189.9	191.7	193.8	206.1	209.8	212.8	215.3	-9999.0
128	Arctic subocean	130.1	128.0	117.3	112.8	111.9	114.7	107.8	106.3	119.6	122.9	113.7	110.3	119.6	123.9	130.2	143.1	140.8	141.0	134.6	136.3	146.0	140.7	141.4	146.0	143.0	135.1	135.7	141.8	143.0	141.7	-9999.0
130	Chukchi Sea	142.6	149.1	157.7	166.0	172.1	151.0	145.6	156.8	165.9	178.1	183.2	182.9	165.1	144.6	145.9	147.3	149.1	153.6	158.6	158.7	164.1	158.4	166.1	164.4	172.1	170.4	174.5	185.4	198.5	216.0	-9999.0
132	Beaufort Sea	172.3	186.7	199.2	201.3	202.8	206.4	212.5	205.2	203.9	216.5	224.6	226.3	215.4	200.1	191.8	188.7	197.5	201.2	204.2	206.1	209.4	207.8	213.4	220.3	222.1	218.4	225.1	230.2	226.8	228.0	-9999.0
134	Arctic Archipelago	149.3	143.0	151.1	155.6	159.5	167.1	176.1	169.7	145.6	158.0	188.2	164.0	166.2	165.4	159.7	160.1	167.8	169.9	168.7	178.3	181.0	176.0	183.5	185.5	192.5	206.8	208.9	204.7	194.9	175.6	-9999.0
136	Foxe Basin	156.6	154.7	133.8	136.3	148.4	147.5	148.5	162.8	153.5	133.8	135.6	165.0	142.7	131.6	156.5	167.9	166.6	163.4	158.4	155.2	163.4	178.4	182.0	176.9	183.3	188.4	202.0	208.1	200.9	187.6	-9999.0
138	Baffin Bay	107.2	109.9	105.0	102.0	98.2	97.6	97.6	96.0	89.8	85.9	93.4	92.3	93.1	98.7	107.7	111.3	123.8	135.7	135.3	143.9	143.4	135.1	129.5	133.0	132.5	126.7	129.6	123.7	132.0	139.7	-9999.0
139	South Greenland	141.5	140.9	146.0	127.4	125.2	145.0	159.4	147.6	127.9	121.9	134.0	132.6	127.6	149.2	137.4	136.0	150.8	154.5	161.0	174.3	166.5	160.2	153.9	173.3	181.3	185.1	177.8	170.9	170.8	174.8	-9999.0
140	Greenland Sea	121.0	115.6	101.6	106.6	112.9	110.8	94.4	92.6	100.3	102.5	94.3	85.5	86.8	104.7	111.0	102.1	116.5	126.8	131.7	152.4	157.3	146.0	124.1	121.8	123.4	121.3	118.8	126.5	125.0	128.6	-9999.0
142	Norwegian Sea	203.5	200.5	195.9	205.1	213.0	210.5	203.4	205.8	229.9	233.0	233.1	212.4	204.5	226.9	232.1	231.1	226.6	204.1	214.6	219.4	216.6	229.3	237.3	220.9	205.7	203.9	199.2	201.4	205.6	204.9	-9999.0
144	Barents Sea	215.5	211.7	207.6	201.7	197.0	202.2	212.7	206.6	195.9	201.7	211.0	223.4	222.7	213.1	211.7	223.3	229.0	229.8	218.1	215.9	213.1	215.5	217.9	223.8	222.4	205.3	194.5	200.4	212.6	214.1	-9999.0
146	Kara Sea	189.1	188.3	190.1	193.6	197.2	200.9	201.8	208.9	209.6	200.4	188.8	186.6	193.4	195.3	193.0	188.5	189.2	196.0	204.0	207.4	211.2	218.3	225.9	224.3	220.4	220.4	221.6	220.2	212.6	216.3	-9999.0
148	Laptev Sea	171.9	177.0	181.4	181.0	179.8	183.1	185.0	188.5	197.9	200.5	185.4	171.4	172.0	173.5	175.1	179.6	181.9	179.0	180.2	180.4	185.0	191.9	191.1	190.6	193.9	199.7	200.2	198.4	201.3	198.8	-9999.0
150	East Siberian Sea	133.2	130.6	139.3	153.2	153.3	150.1	154.9	161.0	166.5	170.6	169.1	157.0	149.1	157.3	163.2	162.5	165.5	169.8	169.2	170.8	171.9	173.6	172.2	175.4	175.7	178.1	178.6	181.9	190.4	193.2	-9999.0
152	Gulf of Alaska	209.1	204.5	204.3	200.3	190.2	187.8	186.3	192.6	216.4	217.0	210.5	201.6	204.0	196.5	181.2	189.3	200.2	204.6	210.9	202.3	199.9	199.6	204.0	207.9	204.7	219.2	224.7	224.3	227.4	228.5	-9999.0
154	Southeast Bering Sea	199.2	205.3	206.4	198.4	182.5	172.1	181.3	209.3	209.6	208.9	207.8	197.7	175.0	161.3	183.0	204.6	205.0	210.1	210.1	196.5	198.4	203.5	196.4	187.1	179.2	199.1	211.8	211.5	222.4	224.7	-9999.0