1948 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	261.9	261.9	262.5	260.1	257.4	255.0	253.9	253.3	250.7	250.3	247.3	245.0	242.9	243.7	243.7	241.4	241.4	240.6	239.3	240.4	240.6	240.7	239.8	238.1	236.9	236.8	236.3	234.9	233.1	231.7	-9999.0
34	Hudson Bay	294.1	299.5	305.8	305.8	300.9	293.7	286.6	281.7	276.7	282.5	289.7	286.3	274.6	273.5	277.6	283.9	288.7	286.2	283.8	274.4	278.2	283.2	286.1	281.9	274.3	282.9	288.5	286.2	278.9	263.2	-9999.0
36	Hudson Strait	248.8	261.7	276.3	272.4	268.1	296.4	266.9	272.7	275.3	262.0	247.9	243.9	247.4	234.6	226.9	230.9	237.1	267.1	257.9	274.3	267.3	258.4	254.8	256.9	254.1	264.5	245.4	232.4	245.6	255.6	-9999.0
98	Bering Strait	230.7	235.4	241.4	238.4	244.0	250.9	255.4	255.3	252.7	245.7	239.3	238.4	238.8	235.8	239.5	239.6	239.5	215.9	203.5	208.5	207.9	205.5	208.4	220.2	222.4	210.4	202.0	204.6	212.6	220.4	-9999.0
128	Arctic subocean	197.9	199.6	199.9	195.9	193.3	195.0	193.1	187.6	178.1	168.6	167.8	169.9	166.2	166.5	169.2	169.0	164.1	164.9	171.6	181.0	175.3	181.4	166.6	162.4	177.3	191.8	192.7	180.8	171.7	166.0	-9999.0
130	Chukchi Sea	232.0	233.6	235.4	226.6	227.3	228.8	232.2	243.8	238.2	223.8	242.1	246.9	246.2	240.0	240.4	229.6	207.8	192.9	190.9	189.8	194.9	191.0	193.6	204.7	198.1	195.2	204.5	209.9	221.9	233.5	-9999.0
132	Beaufort Sea	262.5	264.0	272.2	263.0	259.4	258.6	262.4	268.7	272.7	274.5	253.5	241.3	241.2	249.5	252.4	245.8	248.5	252.8	243.7	253.3	241.6	235.8	230.1	224.4	229.7	239.5	238.2	225.6	216.2	215.1	-9999.0
134	Arctic Archipelago	246.7	241.8	238.8	234.2	231.6	233.2	237.5	238.3	238.3	240.6	234.4	224.2	216.3	215.9	207.9	203.2	210.9	209.5	186.6	192.9	212.2	206.3	210.2	232.6	234.8	217.1	204.7	204.1	193.4	186.0	-9999.0
136	Foxe Basin	250.1	254.7	258.9	251.9	243.3	231.5	223.0	220.9	221.5	224.3	219.5	221.5	222.1	220.9	223.3	215.5	225.4	234.5	237.6	214.2	209.6	237.9	246.3	234.8	258.6	243.1	217.0	208.8	225.3	214.2	-9999.0
138	Baffin Bay	190.0	191.6	192.8	189.5	180.6	172.1	167.3	162.2	159.2	163.8	157.3	159.9	160.4	159.9	162.7	152.8	145.7	141.9	167.6	177.5	176.8	181.4	169.6	151.9	162.9	181.7	179.5	167.5	158.8	160.9	-9999.0
139	South Greenland	193.9	193.3	198.9	200.6	198.1	188.1	182.2	178.9	173.1	170.7	165.7	162.3	161.4	161.2	160.2	155.6	155.6	148.5	163.3	174.4	182.0	183.4	189.9	191.0	184.6	180.0	171.0	158.0	163.1	167.4	-9999.0
140	Greenland Sea	180.9	180.0	184.5	178.5	168.6	162.9	158.0	156.3	158.2	143.4	137.2	130.2	133.1	134.1	148.0	150.9	147.1	145.0	145.8	156.4	166.3	161.1	160.9	142.0	135.5	148.2	171.7	169.2	154.9	143.7	-9999.0
142	Norwegian Sea	289.7	283.7	282.8	282.4	284.8	292.4	284.8	280.8	266.4	255.9	289.9	293.7	263.9	264.2	240.0	247.6	258.7	251.2	236.9	239.2	243.0	244.2	249.4	241.7	233.9	234.0	264.2	266.3	249.7	237.5	-9999.0
144	Barents Sea	287.6	284.5	282.1	277.1	273.1	268.2	266.5	266.3	276.4	286.0	264.1	255.8	267.8	279.7	281.5	257.9	257.9	273.4	281.0	290.8	282.3	265.7	263.5	258.6	253.4	249.3	245.3	251.8	262.9	255.3	-9999.0
146	Kara Sea	277.1	276.9	278.4	281.2	280.4	277.2	276.5	274.7	268.5	267.7	269.6	267.5	262.6	263.1	264.0	265.4	265.0	267.0	267.6	265.0	263.5	265.9	259.0	252.0	249.7	249.2	251.5	254.6	254.7	256.6	-9999.0
148	Laptev Sea	274.3	267.5	258.1	251.3	243.1	239.8	242.2	244.8	241.3	238.2	241.7	248.5	250.0	248.8	242.9	237.9	235.4	234.1	230.8	227.1	225.2	226.2	232.3	238.0	241.2	237.6	235.6	236.2	234.4	239.2	-9999.0
150	East Siberian Sea	249.9	249.7	233.7	224.5	230.5	233.4	234.8	230.9	230.3	232.6	218.6	218.4	225.7	224.8	221.0	212.1	205.5	205.9	207.4	218.3	230.6	234.6	234.4	223.3	215.4	211.4	209.6	208.9	198.7	194.0	-9999.0
152	Gulf of Alaska	241.9	247.5	250.9	250.6	254.4	262.9	267.5	263.3	266.7	254.0	248.5	240.9	238.0	240.6	241.9	253.4	256.6	231.9	230.3	228.0	226.7	222.0	221.1	239.3	238.8	224.1	219.0	223.2	228.1	239.8	-9999.0
154	Southeast Bering Sea	236.0	244.7	255.9	269.1	272.9	271.1	271.6	272.8	270.1	266.1	251.8	246.6	249.9	260.5	261.3	268.6	256.5	214.3	215.7	216.4	208.8	210.5	217.1	244.2	238.3	224.1	237.4	241.2	248.1	245.0	-9999.0