1957 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	271.9	269.2	264.0	259.0	258.2	259.9	257.9	254.9	252.8	251.5	249.6	249.2	247.9	245.9	244.5	243.9	239.8	237.4	234.5	230.6	231.2	232.5	229.2	229.0	227.8	227.8	229.7	233.0	235.1	233.5	-9999.0
34	Hudson Bay	317.1	313.5	295.8	284.1	279.6	280.2	285.4	286.6	286.4	288.6	287.1	279.1	267.7	269.1	264.1	262.0	254.5	244.2	241.7	242.6	246.5	251.3	245.3	245.8	230.8	231.1	251.4	276.1	288.8	277.8	-9999.0
36	Hudson Strait	247.2	244.5	242.7	244.3	249.4	261.3	248.7	240.6	251.0	275.0	284.5	285.6	286.0	266.3	253.8	260.6	251.7	236.5	244.2	238.8	234.7	247.7	248.7	232.9	232.2	224.2	212.5	209.8	224.5	271.9	-9999.0
98	Bering Strait	265.7	265.0	269.6	272.0	276.9	273.9	265.1	261.3	264.5	263.1	254.4	266.0	261.2	252.8	238.1	236.5	235.0	250.0	238.8	222.4	220.1	224.0	217.2	221.4	222.9	212.1	218.1	203.8	208.5	204.2	-9999.0
128	Arctic subocean	193.6	196.2	196.7	185.8	186.4	194.1	183.5	169.8	167.8	168.8	169.1	174.4	172.8	183.2	190.1	198.3	197.5	185.4	183.5	177.3	183.3	190.5	188.5	169.0	158.9	156.1	152.7	158.5	151.2	151.6	-9999.0
130	Chukchi Sea	247.7	256.7	266.5	267.5	260.2	257.2	251.6	239.6	239.6	245.3	244.8	252.7	258.0	257.8	248.2	239.5	233.2	222.2	214.8	217.4	214.6	209.6	216.9	207.8	198.5	195.6	204.5	192.0	189.1	198.2	-9999.0
132	Beaufort Sea	301.4	296.2	288.1	286.0	285.8	299.1	286.2	275.2	273.8	275.8	268.6	260.4	268.9	259.5	248.9	232.3	214.8	225.0	244.3	239.6	231.0	235.5	234.0	219.8	233.4	249.6	261.7	265.8	252.6	262.3	-9999.0
134	Arctic Archipelago	268.1	278.0	264.9	231.1	243.4	260.2	266.6	258.9	232.2	223.7	227.4	217.8	208.8	204.8	202.3	198.8	195.6	196.0	200.8	206.3	207.5	205.5	202.5	194.8	190.3	195.8	198.2	207.0	201.7	190.7	-9999.0
136	Foxe Basin	244.9	240.1	251.5	250.3	226.6	236.4	233.9	236.9	241.1	240.1	245.1	259.0	260.8	255.7	239.4	219.7	215.8	217.4	229.7	227.7	224.4	215.8	219.8	217.1	207.7	202.6	201.2	203.2	202.3	216.2	-9999.0
138	Baffin Bay	193.2	185.6	193.5	192.6	187.6	189.2	180.2	170.9	163.4	160.5	161.4	165.7	175.2	197.2	208.3	211.1	206.1	198.0	182.6	189.7	211.3	204.0	181.0	169.6	164.2	156.1	157.8	162.1	163.4	167.2	-9999.0
139	South Greenland	215.4	209.4	203.5	200.1	195.1	197.2	192.9	186.9	181.1	172.3	167.8	168.8	183.6	193.1	197.3	201.6	204.0	208.5	209.1	213.9	217.7	203.3	189.4	197.9	184.8	176.5	166.7	171.2	185.4	190.3	-9999.0
140	Greenland Sea	190.3	184.7	173.4	169.8	167.1	171.3	159.8	150.9	156.8	158.1	153.9	147.9	146.8	152.5	162.0	177.9	184.7	188.0	179.1	168.0	179.7	190.8	183.8	166.8	160.8	150.9	142.4	140.8	145.8	151.5	-9999.0
142	Norwegian Sea	283.8	278.6	268.6	263.2	264.5	268.4	270.5	273.9	264.8	273.6	271.6	277.7	278.3	269.2	265.3	267.2	265.9	262.9	242.5	234.6	239.9	231.3	226.8	223.8	224.2	232.1	241.4	243.1	239.8	235.8	-9999.0
144	Barents Sea	315.6	304.3	300.4	295.8	300.9	296.3	295.7	293.8	287.5	282.3	282.9	285.9	299.7	296.8	282.5	265.7	261.5	254.1	255.1	257.1	252.9	253.6	243.5	243.4	260.8	256.2	244.4	238.0	237.2	234.0	-9999.0
146	Kara Sea	276.4	276.4	272.9	270.5	268.7	270.6	271.1	267.0	268.5	268.6	272.3	273.7	271.4	272.0	276.2	277.2	265.4	255.1	242.8	234.4	236.5	244.6	252.5	252.7	248.6	248.9	251.0	250.3	253.6	251.9	-9999.0
148	Laptev Sea	255.4	251.3	247.8	245.5	243.5	235.1	234.8	236.8	230.8	221.4	208.4	210.6	215.4	212.9	216.6	222.6	226.9	230.3	232.6	230.2	225.7	216.8	205.2	215.3	227.5	225.4	220.9	224.0	223.2	216.2	-9999.0
150	East Siberian Sea	257.5	247.7	247.3	239.7	238.4	244.4	241.2	247.8	246.3	254.7	258.9	252.1	224.7	207.0	207.3	216.7	240.1	243.2	240.4	239.4	239.0	237.2	232.8	235.2	222.7	231.7	224.1	222.8	222.5	222.9	-9999.0
152	Gulf of Alaska	269.5	269.9	275.7	281.9	291.7	277.1	269.8	270.4	281.7	274.8	266.6	286.4	272.8	261.4	250.0	245.6	249.0	266.2	265.1	239.2	255.4	257.5	245.5	258.7	264.5	260.9	247.0	239.2	235.5	225.9	-9999.0
154	Southeast Bering Sea	273.4	288.4	282.3	276.8	294.0	298.9	293.5	284.3	281.7	273.3	278.7	290.0	277.0	263.1	257.2	267.1	283.6	284.8	250.9	237.9	236.7	228.3	225.8	237.4	233.1	227.9	213.6	214.4	204.2	199.0	-9999.0