1950 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	168.6	170.5	170.2	171.7	178.0	180.7	180.1	176.9	174.4	173.7	174.5	176.8	179.6	181.5	184.9	185.7	185.7	185.9	188.2	189.4	190.5	191.5	193.8	199.5	201.8	203.0	203.1	203.6	204.9	205.9	-9999.0
34	Hudson Bay	189.8	197.5	186.4	175.6	174.9	174.8	164.6	161.3	182.2	192.4	190.0	185.6	196.8	208.7	215.5	226.9	226.8	217.5	212.7	208.7	206.7	204.8	202.8	199.3	197.7	200.4	203.2	204.4	205.2	207.6	-9999.0
36	Hudson Strait	157.9	151.6	166.7	160.0	155.5	144.4	119.5	132.9	157.7	160.8	176.7	191.9	169.7	164.8	186.3	195.5	184.4	187.3	193.2	226.7	223.4	218.8	206.9	210.5	220.4	220.0	219.8	221.6	222.8	215.3	-9999.0
98	Bering Strait	152.7	153.5	152.4	153.4	176.5	180.4	185.1	183.2	181.9	181.3	186.7	189.9	186.8	185.7	185.0	180.3	177.3	179.9	195.6	197.3	188.8	181.9	181.5	182.1	185.4	183.3	175.6	186.6	196.2	189.1	-9999.0
128	Arctic subocean	121.3	121.5	119.8	122.8	126.6	124.3	108.4	104.8	107.5	120.8	120.8	118.5	115.7	115.7	119.2	126.1	124.2	113.2	107.9	116.0	123.2	125.2	134.7	138.6	135.1	136.6	149.0	148.0	147.7	150.7	-9999.0
130	Chukchi Sea	147.6	146.2	171.1	167.9	197.3	188.6	190.7	211.1	196.9	185.7	181.8	172.5	169.3	168.4	163.0	171.2	170.5	167.0	177.0	181.5	177.6	179.6	179.2	178.2	179.3	177.3	161.2	154.2	172.2	182.6	-9999.0
132	Beaufort Sea	182.7	177.1	164.0	159.6	174.1	171.9	176.6	179.9	178.9	175.8	187.4	211.1	208.6	198.1	200.1	197.9	191.7	193.2	204.1	222.2	214.5	196.3	186.3	187.4	194.8	193.5	194.8	201.1	213.4	217.6	-9999.0
134	Arctic Archipelago	139.4	139.1	131.0	129.4	128.7	138.4	153.6	146.5	127.0	124.0	140.0	165.1	191.4	178.0	151.7	148.2	148.1	152.7	153.2	153.2	170.1	168.2	151.7	151.5	161.6	168.0	171.3	170.7	177.1	187.2	-9999.0
136	Foxe Basin	117.1	123.8	123.4	118.1	119.7	114.2	125.9	153.4	142.0	130.7	132.6	124.0	161.1	191.2	186.6	147.3	161.2	182.8	186.7	159.4	147.6	166.3	184.6	175.2	176.7	184.7	188.3	187.4	173.3	171.1	-9999.0
138	Baffin Bay	97.4	88.1	84.3	81.4	83.7	85.1	95.9	102.8	100.6	102.4	102.4	117.9	115.7	112.7	128.4	121.0	114.1	103.4	110.2	112.2	122.3	119.2	131.6	140.0	114.1	118.7	118.8	125.4	127.2	123.3	-9999.0
139	South Greenland	132.4	118.4	110.3	106.7	109.6	124.9	140.5	136.8	135.7	134.6	136.3	148.9	159.4	145.3	161.5	156.3	149.4	140.6	136.9	136.1	158.3	171.9	178.6	193.3	181.5	172.5	166.9	163.8	159.8	151.3	-9999.0
140	Greenland Sea	100.6	93.1	92.5	92.2	96.8	101.5	106.7	115.9	131.7	140.0	132.8	129.7	125.6	114.7	120.3	127.6	127.1	116.0	104.0	107.5	121.1	123.5	119.2	137.9	119.7	110.8	123.6	132.9	129.5	129.1	-9999.0
142	Norwegian Sea	227.7	227.3	223.4	214.7	206.0	203.8	207.2	223.5	227.9	229.4	227.4	227.7	225.8	225.9	227.1	230.8	232.5	239.0	235.9	227.1	245.3	239.9	219.0	218.3	223.5	232.1	231.3	228.2	225.9	224.3	-9999.0
144	Barents Sea	217.1	225.8	231.1	232.1	234.3	228.4	198.6	181.4	191.2	204.4	212.3	217.6	224.0	233.9	244.9	234.1	228.4	235.4	246.0	243.2	229.2	233.6	245.0	256.0	256.1	252.3	238.6	255.8	255.9	263.3	-9999.0
146	Kara Sea	181.0	188.8	196.1	205.7	211.1	213.5	214.9	206.6	185.6	178.5	173.8	168.9	173.6	185.1	192.1	198.7	202.9	203.1	201.4	198.4	201.3	206.1	213.3	224.6	231.8	232.6	231.2	222.1	220.6	221.6	-9999.0
148	Laptev Sea	167.9	168.6	170.1	174.2	183.6	191.4	187.2	180.4	181.8	176.2	173.5	167.2	160.0	157.3	158.5	159.9	165.0	170.4	175.9	178.4	178.7	182.6	189.1	196.5	201.5	207.6	211.5	213.5	215.4	215.5	-9999.0
150	East Siberian Sea	137.7	140.9	146.7	154.8	159.4	164.5	171.0	176.0	183.0	186.4	189.7	197.1	191.7	184.3	171.5	149.4	144.3	149.7	154.1	160.3	167.4	173.1	174.5	176.8	180.2	185.5	192.3	193.3	186.8	189.2	-9999.0
152	Gulf of Alaska	186.9	176.1	167.7	166.1	175.1	187.3	187.5	190.5	191.2	188.6	202.3	206.1	207.0	205.5	205.2	198.3	196.4	211.5	221.1	208.2	195.6	198.2	202.8	201.8	201.5	201.6	202.1	213.4	217.4	211.4	-9999.0
154	Southeast Bering Sea	172.7	157.8	161.1	180.1	207.3	199.8	214.6	225.6	205.7	211.9	203.5	199.0	197.1	196.1	192.5	203.8	206.0	211.7	216.3	214.5	200.1	206.7	212.5	209.6	208.2	208.0	212.1	221.8	220.2	213.9	-9999.0