1971 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	265.2	263.8	262.0	260.9	261.3	259.3	257.1	254.2	251.8	251.7	251.2	250.3	248.6	246.3	240.9	237.1	235.9	233.7	230.7	226.7	225.6	225.7	226.3	224.6	222.0	220.5	218.8	217.1	215.7	214.5	-9999.0
34	Hudson Bay	299.5	304.0	299.6	296.6	295.4	304.3	307.5	293.2	285.0	284.9	287.9	289.5	281.5	274.1	260.0	250.8	245.2	249.7	254.5	248.3	235.1	234.9	239.6	240.3	241.1	247.6	252.1	258.2	261.0	251.9	-9999.0
36	Hudson Strait	246.5	266.5	252.7	235.9	226.4	244.6	274.4	298.2	282.9	260.5	255.8	265.1	260.4	266.5	274.8	263.6	245.7	237.9	232.3	247.0	249.5	225.9	219.5	228.2	222.6	221.8	213.8	213.7	214.8	224.2	-9999.0
98	Bering Strait	252.9	247.7	245.4	241.3	236.4	234.8	229.6	226.8	225.7	226.6	231.0	229.9	229.4	232.2	230.0	234.7	234.9	227.8	229.0	240.9	237.9	234.1	231.8	228.5	225.0	216.3	203.5	201.5	208.5	217.6	-9999.0
128	Arctic subocean	187.6	189.0	188.4	181.2	182.9	185.5	188.4	188.4	187.4	189.2	188.1	189.7	195.6	193.2	187.3	182.2	179.9	172.4	165.5	167.6	172.2	165.2	163.3	163.5	169.9	172.5	166.4	166.9	171.0	170.6	-9999.0
130	Chukchi Sea	218.2	226.0	230.6	230.6	231.9	235.5	230.2	222.3	226.4	227.4	227.7	217.0	221.7	238.0	240.6	231.2	233.9	229.9	235.9	238.7	239.8	239.0	241.3	238.3	234.9	220.7	209.6	211.8	213.7	205.3	-9999.0
132	Beaufort Sea	281.4	270.2	265.4	272.9	273.2	264.2	251.2	248.6	243.6	242.9	247.4	246.2	242.1	235.1	232.4	232.8	245.9	254.5	239.7	223.3	235.4	238.9	237.9	234.9	236.2	229.5	222.6	215.7	206.5	205.4	-9999.0
134	Arctic Archipelago	213.1	208.0	208.7	220.4	238.7	241.3	230.0	222.8	225.2	225.9	221.9	224.7	222.9	218.6	213.9	210.6	212.4	212.5	196.7	192.4	197.3	196.6	193.3	193.8	200.1	204.1	205.2	212.9	212.5	204.6	-9999.0
136	Foxe Basin	214.5	209.8	210.6	211.5	213.7	223.6	237.2	239.4	235.9	237.4	239.8	238.9	235.3	226.9	218.7	211.1	210.1	209.7	201.0	205.0	212.9	205.1	205.7	209.4	212.8	206.3	200.1	197.2	207.0	207.9	-9999.0
138	Baffin Bay	168.1	170.1	171.5	169.3	177.5	175.0	171.8	170.1	176.3	179.7	191.2	203.5	202.7	196.5	193.0	181.5	169.0	157.1	157.8	159.0	157.5	160.0	166.7	160.7	155.8	143.8	139.7	140.9	147.7	150.1	-9999.0
139	South Greenland	185.4	181.7	182.5	182.3	188.5	181.5	172.4	173.9	184.0	196.5	202.7	209.2	208.0	213.6	206.0	197.9	194.8	178.1	168.5	159.3	153.4	159.8	168.3	163.4	155.7	161.0	167.5	169.3	163.2	151.3	-9999.0
140	Greenland Sea	181.4	169.8	157.9	152.1	170.6	174.8	171.7	165.9	159.5	163.9	165.8	186.2	196.4	190.0	185.4	178.2	164.6	150.3	142.6	136.9	139.5	133.5	141.1	140.8	133.5	136.1	134.8	127.0	127.9	129.8	-9999.0
142	Norwegian Sea	259.8	262.4	261.3	255.6	253.9	253.3	284.1	283.6	286.1	271.7	258.7	234.9	233.9	233.8	242.5	264.0	274.5	256.9	263.0	243.0	248.8	247.6	236.2	247.2	243.8	233.4	242.8	240.3	241.0	248.9	-9999.0
144	Barents Sea	279.1	275.0	281.3	278.4	268.2	258.8	256.0	260.3	272.3	272.3	272.0	266.7	266.1	271.4	254.9	241.2	244.0	248.7	253.2	252.2	256.4	251.4	249.5	228.7	236.9	252.0	236.3	223.2	227.6	220.7	-9999.0
146	Kara Sea	279.9	284.5	284.9	284.2	282.9	278.8	278.6	272.7	264.9	261.4	259.1	260.4	266.8	269.5	265.0	264.9	260.7	253.4	246.1	243.5	244.9	247.4	245.8	246.9	236.4	226.3	224.1	222.4	218.7	222.1	-9999.0
148	Laptev Sea	288.8	281.9	277.6	274.9	274.8	271.8	270.3	272.3	269.5	267.1	256.0	242.5	231.2	223.4	226.0	221.5	222.9	226.8	229.7	224.7	221.1	224.2	226.0	224.3	225.1	228.3	228.1	219.6	214.9	213.4	-9999.0
150	East Siberian Sea	251.0	243.3	242.2	239.2	243.8	235.1	224.0	230.2	242.4	259.2	265.5	261.5	256.8	243.0	227.3	221.0	228.4	223.7	224.3	214.5	205.2	199.7	198.3	199.1	203.4	208.6	219.1	219.0	216.2	214.7	-9999.0
152	Gulf of Alaska	276.1	267.7	258.8	252.6	245.5	235.1	240.3	238.6	237.6	236.1	237.3	239.5	235.9	238.2	234.6	249.0	241.4	233.8	242.8	257.0	257.5	252.4	244.5	239.1	229.3	225.8	217.5	219.7	222.7	242.0	-9999.0
154	Southeast Bering Sea	270.0	266.8	265.0	258.1	242.7	235.8	241.2	252.6	254.7	253.5	251.3	253.7	246.0	245.6	248.8	254.4	247.9	250.1	262.2	251.7	253.4	247.1	255.9	249.1	241.6	241.4	235.9	259.9	272.5	258.3	-9999.0