1967 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	165.5	164.7	165.0	166.9	166.6	165.3	165.5	167.3	169.9	173.3	176.3	178.2	182.7	187.8	187.9	188.2	190.3	194.2	198.4	199.0	198.8	200.5	201.9	203.0	202.3	201.4	200.5	200.2	204.3	211.3	-9999.0
34	Hudson Bay	180.6	169.4	164.1	180.2	168.9	171.8	182.8	190.7	190.9	181.3	189.8	203.8	213.6	221.3	219.6	212.8	203.2	196.9	196.7	195.8	190.5	185.8	182.4	189.9	199.2	199.2	197.7	201.4	197.6	197.8	-9999.0
36	Hudson Strait	195.5	165.4	166.5	135.8	149.9	143.6	149.2	153.7	158.0	163.0	143.1	149.9	176.5	161.2	159.6	183.1	194.1	180.9	174.9	169.2	152.1	144.8	148.5	158.8	161.4	164.0	158.6	168.3	185.1	203.9	-9999.0
98	Bering Strait	192.3	200.6	182.1	186.8	193.5	187.7	180.6	176.4	169.6	172.0	181.6	173.8	165.2	169.8	169.8	173.6	194.1	194.0	194.2	191.1	190.4	192.9	190.4	192.5	195.8	199.6	207.4	208.0	213.1	220.7	-9999.0
128	Arctic subocean	115.9	110.2	108.1	112.3	117.5	146.0	138.6	132.7	133.3	130.2	120.4	119.4	120.9	114.0	112.7	118.7	127.3	137.7	135.4	135.7	144.8	151.4	144.5	135.1	133.6	131.8	136.5	156.0	169.9	173.2	-9999.0
130	Chukchi Sea	160.3	170.8	162.6	169.0	183.3	180.4	175.1	168.3	161.9	162.8	158.3	170.1	173.1	156.6	155.6	185.2	214.4	187.6	205.2	184.7	176.1	204.2	205.8	202.5	207.6	208.0	227.8	214.9	213.4	219.7	-9999.0
132	Beaufort Sea	165.4	166.1	182.7	170.8	171.9	180.6	174.0	171.0	177.3	183.5	185.3	190.6	187.7	179.8	180.9	182.8	179.5	184.9	188.0	189.8	190.7	195.6	197.2	200.4	201.0	202.0	202.6	206.6	211.0	217.5	-9999.0
134	Arctic Archipelago	118.6	120.6	125.9	130.3	135.6	131.8	126.0	132.7	138.2	142.9	143.4	140.2	142.7	153.7	154.6	148.4	143.2	145.0	153.7	161.3	173.2	180.0	176.2	172.0	167.7	163.4	158.1	170.3	179.8	176.8	-9999.0
136	Foxe Basin	117.9	128.1	139.5	161.6	162.9	145.9	139.3	134.6	133.6	135.8	138.2	136.7	138.9	145.2	161.0	167.7	158.2	144.5	143.3	140.4	143.6	148.1	158.7	161.7	161.2	153.3	142.2	148.0	155.6	175.9	-9999.0
138	Baffin Bay	98.5	88.3	86.3	104.1	142.1	142.7	134.5	127.8	130.7	121.9	105.5	96.9	99.9	99.9	94.6	99.2	105.7	112.7	110.6	100.4	106.4	114.8	115.4	120.0	120.1	122.2	115.4	113.5	125.8	129.7	-9999.0
139	South Greenland	122.0	117.6	117.7	136.6	158.4	155.6	167.8	159.7	146.4	140.4	140.9	135.6	151.1	140.2	123.8	123.0	131.2	131.4	126.6	120.1	118.8	126.9	152.2	162.8	151.8	147.7	140.9	136.2	137.4	140.1	-9999.0
140	Greenland Sea	91.0	95.2	107.7	122.6	130.6	153.4	141.8	146.1	133.4	124.2	121.1	103.3	101.6	111.2	89.0	90.3	90.5	106.3	101.8	106.1	106.9	112.4	111.5	116.0	114.4	121.5	123.2	121.4	129.9	140.9	-9999.0
142	Norwegian Sea	206.1	206.8	217.0	220.4	222.1	218.0	216.9	222.6	225.3	224.3	221.6	224.0	233.1	243.2	231.4	223.3	209.6	198.5	196.1	193.1	196.8	203.5	209.6	211.7	228.8	242.9	240.5	233.1	213.6	205.4	-9999.0
144	Barents Sea	215.5	212.2	212.8	214.0	219.6	224.0	224.2	221.3	224.2	224.1	225.2	215.4	214.0	221.1	222.2	226.0	220.9	217.1	205.8	196.1	209.2	236.0	247.3	257.0	252.1	251.0	243.3	239.6	250.7	229.9	-9999.0
146	Kara Sea	183.7	190.1	191.4	186.2	176.9	167.0	166.3	172.9	183.0	193.6	198.9	203.5	207.2	213.2	210.7	209.9	221.8	234.4	242.1	240.6	239.4	240.4	242.8	242.8	244.5	240.1	237.3	234.2	238.7	255.4	-9999.0
148	Laptev Sea	146.1	143.4	142.9	142.8	142.0	144.4	145.1	145.2	144.5	151.0	156.3	161.7	171.5	186.0	199.5	192.9	185.0	198.2	210.6	218.4	212.1	208.2	207.3	199.5	186.8	192.1	195.7	186.9	191.2	198.0	-9999.0
150	East Siberian Sea	135.0	135.0	134.7	133.6	134.9	134.1	136.3	137.3	144.6	151.6	152.8	148.3	146.5	153.4	163.3	178.3	174.1	163.4	173.6	198.3	210.5	198.1	190.3	186.0	186.2	171.1	167.6	180.7	183.2	198.2	-9999.0
152	Gulf of Alaska	227.7	226.8	207.8	210.2	215.5	209.8	202.3	195.8	192.0	195.6	205.0	183.7	176.9	187.8	189.3	185.9	205.6	204.9	212.3	201.0	198.7	193.7	189.1	189.7	196.2	197.9	209.3	217.9	220.8	215.1	-9999.0
154	Southeast Bering Sea	241.2	226.6	215.6	234.1	226.5	213.1	213.3	202.0	193.3	219.8	197.4	180.1	202.0	218.8	190.4	223.5	231.8	215.3	222.1	204.4	205.3	212.2	210.6	207.6	206.4	223.4	241.6	231.9	234.8	239.8	-9999.0