1975 04 - daily  - mean of NCEP mean Daily Downward Longwave Radiation 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	205.6	206.7	206.2	204.7	202.2	204.3	206.3	213.9	217.5	217.5	218.4	220.0	220.8	223.1	225.3	229.5	233.0	231.6	230.3	225.3	222.2	221.8	219.5	217.7	218.4	221.1	223.9	230.9	231.6	234.5	-9999.0
34	Hudson Bay	190.5	184.0	183.7	190.8	197.2	222.5	235.3	237.9	234.8	223.9	224.2	237.0	237.8	242.2	241.7	243.2	247.9	251.0	242.3	228.1	235.1	243.3	245.7	249.7	254.6	257.2	265.1	269.4	259.1	263.8	-9999.0
36	Hudson Strait	232.2	227.7	213.3	187.3	194.3	215.5	210.0	212.1	203.3	204.9	213.7	210.9	225.6	213.2	198.2	236.5	183.5	171.2	199.9	225.7	200.6	201.2	187.7	179.9	189.0	195.6	186.3	226.8	244.6	231.4	-9999.0
98	Bering Strait	204.4	200.8	198.4	208.4	217.8	219.5	216.6	218.1	225.0	235.4	226.1	206.8	210.6	232.4	241.0	222.6	237.6	228.2	213.6	208.5	201.5	197.1	200.7	194.1	207.7	216.0	208.5	207.8	206.7	216.7	-9999.0
128	Arctic subocean	142.7	151.9	166.1	162.9	150.6	141.7	162.2	167.7	154.0	144.3	144.1	126.7	131.9	148.8	149.1	157.4	147.6	144.8	144.8	151.2	157.1	140.6	146.6	140.8	157.0	183.2	177.6	192.7	202.0	201.1	-9999.0
130	Chukchi Sea	179.4	159.2	187.5	231.2	232.0	211.6	186.9	173.2	159.5	155.3	163.2	170.1	204.6	232.5	196.3	198.2	182.1	176.6	184.6	224.8	231.1	204.2	180.5	182.0	190.9	208.5	213.9	207.2	203.2	198.1	-9999.0
132	Beaufort Sea	184.3	198.0	198.2	188.4	185.7	197.8	223.4	222.2	233.0	236.8	232.8	246.0	242.1	231.4	239.7	248.6	236.4	249.3	254.1	242.0	230.0	218.6	235.0	241.9	232.0	242.9	253.4	251.0	230.5	235.4	-9999.0
134	Arctic Archipelago	156.5	167.9	161.3	163.3	162.9	176.7	206.2	216.6	219.2	222.9	222.9	205.2	194.8	180.0	176.6	180.5	189.9	211.4	211.3	193.4	175.9	184.2	199.4	226.8	225.5	211.3	234.6	254.0	252.1	224.9	-9999.0
136	Foxe Basin	161.9	165.1	173.9	169.0	169.7	161.8	158.7	188.9	214.5	234.1	211.7	207.7	171.7	168.9	162.8	168.9	168.0	158.1	156.3	163.5	179.1	179.3	184.5	210.7	194.1	212.3	239.5	260.6	266.6	211.8	-9999.0
138	Baffin Bay	138.5	163.6	169.0	159.1	149.4	133.2	111.2	114.9	115.5	115.6	110.7	122.3	118.1	113.3	113.0	114.3	118.1	140.3	154.1	171.2	173.4	145.7	124.5	132.4	151.5	190.3	176.3	197.5	193.7	207.4	-9999.0
139	South Greenland	212.2	239.7	231.9	227.5	196.0	160.9	154.9	170.5	164.0	143.5	171.4	181.4	174.4	176.2	179.1	185.4	201.7	208.5	198.0	191.4	196.1	197.8	174.2	172.9	172.8	168.7	162.6	181.9	176.9	162.3	-9999.0
140	Greenland Sea	140.5	174.1	171.5	156.9	136.9	121.2	113.3	120.7	123.9	141.8	145.8	130.3	135.6	128.4	126.4	118.5	128.7	138.8	159.6	165.1	169.7	172.1	189.0	146.0	141.0	160.3	152.8	153.9	165.1	156.9	-9999.0
142	Norwegian Sea	244.4	232.6	225.6	244.6	243.9	251.5	253.4	252.7	245.3	236.4	239.1	237.0	229.8	229.1	251.1	226.6	229.8	241.8	252.0	262.2	263.2	273.7	279.3	281.4	271.2	280.2	266.2	267.7	270.2	264.6	-9999.0
144	Barents Sea	249.9	259.0	239.5	240.5	264.5	238.7	240.4	263.6	249.5	264.6	243.2	256.0	291.4	270.2	239.4	256.1	254.9	239.3	234.9	221.6	252.6	260.3	250.2	253.4	257.4	265.6	278.4	269.6	265.6	260.1	-9999.0
146	Kara Sea	236.5	237.1	243.5	235.8	224.6	225.4	222.0	232.0	236.3	228.7	241.2	247.4	242.0	248.6	254.4	254.4	260.1	259.3	260.6	240.3	225.1	224.0	216.5	215.0	218.5	220.8	225.7	236.0	248.9	259.4	-9999.0
148	Laptev Sea	212.1	197.6	190.2	182.0	181.6	181.9	176.1	190.6	200.5	217.6	218.4	212.7	215.6	216.8	224.4	240.0	240.8	230.1	231.4	248.7	249.8	248.5	249.1	229.7	216.0	210.1	206.1	212.0	213.7	221.1	-9999.0
150	East Siberian Sea	164.4	166.4	176.1	191.5	179.6	190.3	206.6	207.9	210.1	202.7	177.3	165.9	166.0	174.5	191.2	200.6	219.4	205.8	187.2	200.1	205.4	219.0	203.9	203.7	195.2	184.8	189.4	195.5	193.5	192.1	-9999.0
152	Gulf of Alaska	254.8	227.6	194.9	202.6	264.2	280.1	255.7	230.4	283.2	281.1	266.0	219.8	213.8	257.4	268.3	255.4	286.3	246.2	215.8	213.2	219.2	210.6	217.6	205.9	244.1	245.8	227.6	229.1	234.7	254.1	-9999.0
154	Southeast Bering Sea	186.2	160.6	190.5	269.4	280.2	260.3	199.9	187.7	233.5	239.4	203.7	199.8	252.9	296.2	270.6	238.9	229.5	186.7	213.7	259.7	241.3	217.4	221.5	218.9	269.0	263.3	220.8	201.2	218.2	238.3	-9999.0