1974 09 - 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	254.7	253.2	252.7	249.6	248.2	246.2	247.0	245.5	240.5	237.7	238.7	238.9	237.7	238.0	239.1	236.4	233.2	230.5	226.3	224.4	223.0	225.3	224.5	221.9	220.2	217.8	215.5	213.2	210.3	208.7	-9999.0
34	Hudson Bay	243.9	247.6	260.7	264.8	267.6	268.3	268.5	255.4	243.2	246.2	248.3	242.7	242.8	253.6	252.4	256.5	250.8	252.7	243.6	231.2	220.9	226.8	244.5	249.4	246.5	242.3	230.3	223.7	219.9	205.9	-9999.0
36	Hudson Strait	260.8	251.1	240.1	240.7	246.2	242.0	255.0	261.9	244.8	222.5	221.7	222.1	226.1	218.5	215.5	226.8	217.5	218.6	216.5	238.4	220.0	212.5	212.2	214.2	236.2	237.4	243.7	236.7	231.3	232.7	-9999.0
98	Bering Strait	284.1	274.0	258.2	240.6	238.8	237.2	234.5	233.6	226.5	225.1	235.6	244.0	239.8	243.6	251.4	245.2	238.3	235.7	234.1	241.4	246.9	238.7	231.8	235.5	226.6	217.8	210.3	199.0	193.4	193.0	-9999.0
128	Arctic subocean	198.0	198.0	193.3	187.2	186.1	193.2	203.5	197.8	194.8	179.5	178.9	192.9	193.5	180.0	184.2	174.3	166.5	163.2	153.9	157.8	158.5	156.1	148.6	147.0	152.5	151.9	140.8	144.5	154.8	154.1	-9999.0
130	Chukchi Sea	267.2	256.8	248.5	249.0	247.5	251.9	245.7	243.9	237.5	225.5	231.7	238.0	239.9	237.4	232.5	232.9	238.4	240.3	243.6	238.7	238.8	231.3	236.1	240.6	232.1	228.0	222.7	219.2	220.1	204.6	-9999.0
132	Beaufort Sea	271.4	277.8	272.5	245.9	229.0	224.3	222.5	223.4	227.1	226.7	230.2	246.5	263.9	264.1	265.8	262.2	254.9	242.6	235.9	238.6	249.0	253.8	241.0	231.4	226.2	200.5	190.9	186.6	179.3	179.0	-9999.0
134	Arctic Archipelago	233.3	238.8	225.2	212.1	214.3	216.2	212.4	208.3	210.0	208.9	204.5	197.7	197.0	200.2	201.0	201.1	199.1	190.7	184.4	187.8	191.9	202.6	187.8	180.1	176.4	183.4	184.6	180.7	174.6	176.2	-9999.0
136	Foxe Basin	227.8	225.5	226.7	229.8	232.0	222.5	221.0	218.5	218.5	222.5	218.1	211.1	208.3	209.0	209.8	208.3	207.6	207.2	204.5	201.2	194.5	193.9	195.2	201.6	211.6	202.3	200.5	204.1	197.6	193.6	-9999.0
138	Baffin Bay	193.3	189.3	181.6	178.2	177.2	175.2	172.0	169.8	167.7	164.0	162.0	171.2	168.7	160.2	162.9	161.9	156.7	138.7	133.9	130.4	139.7	139.4	145.4	145.5	148.1	143.3	143.0	170.5	168.3	153.4	-9999.0
139	South Greenland	187.2	183.2	194.6	205.0	202.8	200.7	191.3	181.2	170.6	166.5	173.1	179.1	170.3	159.5	164.5	161.1	150.4	153.5	161.7	160.1	152.0	153.9	152.9	140.5	139.4	141.8	165.9	175.5	166.2	164.1	-9999.0
140	Greenland Sea	164.3	168.3	163.7	170.3	162.2	156.6	168.6	168.3	161.9	156.1	158.8	161.6	161.7	161.6	167.1	139.0	135.0	135.2	125.1	122.3	121.5	123.1	121.9	111.7	116.3	115.6	114.9	134.4	149.8	143.8	-9999.0
142	Norwegian Sea	286.2	288.8	284.6	283.9	277.9	269.2	264.7	273.1	270.5	251.6	247.6	250.7	248.7	264.6	275.2	277.1	270.8	253.2	246.5	240.7	247.4	254.5	251.6	248.6	257.8	255.9	251.8	248.4	254.5	249.0	-9999.0
144	Barents Sea	261.5	254.2	264.5	279.3	287.5	298.0	300.2	296.1	301.2	293.6	286.2	271.5	256.9	253.5	254.7	262.3	267.4	274.6	270.5	260.1	254.5	255.5	257.5	259.9	262.9	273.7	276.2	272.4	277.0	274.8	-9999.0
146	Kara Sea	273.1	271.7	268.6	263.5	262.2	258.4	264.9	268.0	263.8	259.4	260.5	261.5	261.2	259.5	259.6	255.7	253.2	247.8	242.6	244.8	244.6	249.5	245.2	239.1	237.8	240.7	240.6	235.1	229.6	230.3	-9999.0
148	Laptev Sea	265.3	260.7	262.7	265.9	265.0	259.4	255.8	256.3	249.0	246.2	245.2	240.6	235.9	235.0	234.2	228.3	229.8	229.8	226.2	215.3	211.7	215.5	217.6	216.7	214.5	209.9	206.1	209.9	214.6	218.1	-9999.0
150	East Siberian Sea	241.7	237.1	233.0	227.2	230.8	233.6	234.7	236.3	232.8	230.7	226.0	222.7	216.4	218.7	219.6	222.4	217.3	220.8	222.4	225.6	227.2	213.2	207.0	206.8	205.3	206.6	206.2	196.8	194.9	202.7	-9999.0
152	Gulf of Alaska	288.4	276.7	269.5	259.1	244.6	240.3	239.1	246.4	238.7	249.0	259.7	265.0	263.1	271.5	278.7	247.2	246.2	242.7	251.5	264.0	261.1	253.1	252.0	257.9	243.9	239.2	232.7	215.4	192.6	199.3	-9999.0
154	Southeast Bering Sea	286.6	288.8	293.2	294.8	291.1	279.3	270.8	268.1	261.6	261.4	278.5	275.7	260.5	266.5	275.5	268.3	260.5	260.0	255.7	272.0	269.6	267.8	265.2	265.4	253.5	245.1	239.3	233.8	222.0	221.0	-9999.0