1987 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	251.1	251.4	251.0	252.1	251.9	249.8	246.2	244.3	244.7	244.0	241.5	241.0	240.3	237.3	236.9	236.3	234.6	233.9	234.8	235.3	233.7	230.1	225.6	221.9	221.3	223.8	225.1	223.6	220.0	218.3	-9999.0
34	Hudson Bay	270.5	272.6	283.3	289.7	290.4	294.1	285.0	276.2	280.4	280.3	279.1	282.5	286.8	287.2	279.6	274.7	273.9	270.8	274.4	278.8	286.3	285.9	269.9	247.7	250.1	254.5	264.9	266.8	257.1	241.1	-9999.0
36	Hudson Strait	270.5	266.3	252.0	243.7	262.9	257.3	241.3	243.3	248.3	246.8	252.8	259.4	278.6	290.7	282.9	263.4	244.3	240.5	249.0	253.3	253.5	260.8	255.3	238.1	226.8	219.2	224.0	231.1	226.8	229.3	-9999.0
98	Bering Strait	236.2	246.2	250.4	250.6	228.6	232.1	236.9	227.2	219.4	225.2	219.0	213.5	205.7	204.7	205.3	207.0	214.0	216.1	223.8	221.3	212.8	215.5	221.3	224.6	221.0	217.3	216.1	213.1	212.8	210.1	-9999.0
128	Arctic subocean	200.2	195.5	197.5	191.4	182.5	173.8	165.2	173.9	180.8	189.0	178.0	167.8	163.6	172.5	194.7	191.5	185.6	183.9	187.7	189.5	187.4	181.2	167.0	157.1	152.3	152.3	141.5	132.6	137.2	144.2	-9999.0
130	Chukchi Sea	249.4	243.5	235.6	225.7	219.6	226.2	222.7	221.6	218.8	215.3	221.5	213.3	204.4	210.6	198.0	197.7	195.4	199.4	206.2	209.1	202.1	208.6	220.5	222.2	218.1	220.6	208.0	198.0	197.5	207.1	-9999.0
132	Beaufort Sea	246.9	256.5	257.4	271.0	275.5	254.3	252.6	268.0	267.8	270.0	269.2	269.0	249.4	228.5	237.9	238.6	236.3	245.1	244.3	258.7	261.2	250.1	238.6	239.6	245.7	246.5	237.3	232.8	226.8	242.6	-9999.0
134	Arctic Archipelago	218.1	217.6	211.7	217.3	237.9	237.7	220.5	232.6	250.0	240.7	246.5	243.7	245.7	238.2	217.5	217.2	228.2	230.8	238.3	238.1	232.8	217.4	205.6	198.2	194.2	202.5	199.4	182.7	168.8	166.9	-9999.0
136	Foxe Basin	226.8	236.1	232.5	225.7	215.1	225.4	232.6	218.5	226.2	242.2	236.0	241.7	250.8	250.9	247.2	240.0	236.0	248.3	241.0	237.7	241.4	239.1	226.1	216.3	215.9	215.8	207.5	206.1	194.9	187.9	-9999.0
138	Baffin Bay	185.4	188.3	191.8	185.3	173.1	162.7	161.1	171.2	165.4	178.1	176.8	179.6	169.7	161.8	193.9	190.5	172.8	172.1	169.4	171.2	172.1	168.2	161.9	151.5	156.5	169.1	164.6	154.4	139.1	139.2	-9999.0
139	South Greenland	172.0	169.7	169.4	173.9	183.5	187.2	194.5	189.4	182.1	178.3	172.9	170.7	189.0	180.5	161.3	178.1	182.3	173.4	177.5	168.4	164.5	162.8	163.2	178.5	189.8	196.5	188.5	191.2	182.7	178.9	-9999.0
140	Greenland Sea	161.3	160.2	167.8	173.2	171.8	171.6	170.7	163.4	156.0	151.9	161.0	153.4	132.2	131.2	152.8	175.1	155.2	150.9	151.6	144.5	147.2	142.9	136.8	135.2	128.4	146.3	152.1	150.6	137.3	132.4	-9999.0
142	Norwegian Sea	244.9	257.3	256.2	264.1	272.6	280.2	266.1	258.6	256.5	255.9	250.0	247.4	253.3	255.7	251.2	234.9	237.8	249.7	246.4	242.2	239.6	254.6	255.3	255.1	249.6	244.1	237.0	229.5	240.0	237.1	-9999.0
144	Barents Sea	278.5	274.5	274.3	277.1	278.6	276.1	273.6	272.8	272.9	271.6	265.3	266.1	267.8	266.8	264.4	260.6	255.7	249.3	243.9	238.9	232.8	223.0	218.5	221.8	227.0	237.8	241.6	238.0	236.2	233.9	-9999.0
146	Kara Sea	271.1	271.9	273.1	271.6	271.8	271.7	264.6	257.4	256.7	256.7	255.9	256.8	258.4	256.5	257.0	255.5	253.3	249.3	249.2	250.0	243.6	237.5	239.5	241.8	240.0	237.6	240.5	239.3	235.7	234.6	-9999.0
148	Laptev Sea	259.7	254.7	246.3	244.6	242.1	237.2	237.3	239.4	237.6	232.9	227.2	223.3	222.4	223.4	224.7	223.9	222.0	220.2	218.9	217.8	219.4	216.5	207.6	200.4	199.9	208.8	212.5	214.6	218.7	215.4	-9999.0
150	East Siberian Sea	247.3	236.6	218.4	211.6	208.4	202.4	208.2	216.4	224.2	219.3	206.6	204.7	209.5	204.8	207.5	202.6	205.0	216.0	215.1	207.8	205.8	212.2	216.5	211.9	196.9	186.7	188.8	191.6	200.6	205.1	-9999.0
152	Gulf of Alaska	242.9	256.8	267.2	264.6	248.7	260.5	272.6	248.8	245.3	247.5	238.8	230.2	225.5	222.0	220.8	234.7	241.7	239.4	242.5	241.4	235.7	238.7	242.2	243.0	235.7	237.7	232.8	230.3	234.3	233.0	-9999.0
154	Southeast Bering Sea	279.4	275.2	281.2	268.1	251.4	276.6	265.0	229.6	229.8	233.4	234.9	242.3	218.8	222.6	231.3	232.6	225.6	242.9	242.1	230.2	230.1	253.3	253.3	249.1	242.8	242.6	237.3	232.1	233.9	243.8	-9999.0