1953 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	258.6	255.7	256.8	260.4	263.4	261.3	259.5	257.9	257.5	257.4	256.0	254.8	253.4	249.5	245.9	245.9	245.7	244.8	242.2	238.4	234.4	231.4	230.5	228.9	225.1	222.3	222.2	223.0	221.0	221.2	-9999.0
34	Hudson Bay	307.5	288.0	283.2	280.8	275.7	267.1	273.8	282.7	288.3	290.2	281.5	262.9	267.0	267.0	260.5	262.1	264.7	266.5	266.5	253.3	245.7	245.6	257.1	255.7	250.8	249.0	247.0	251.2	250.9	250.3	-9999.0
36	Hudson Strait	273.8	273.4	241.3	237.7	267.6	282.6	265.7	264.6	250.5	248.3	253.8	246.3	234.7	239.9	224.8	213.9	220.4	227.6	248.4	260.7	263.5	224.3	205.2	233.9	217.9	210.1	208.1	211.0	208.9	210.2	-9999.0
98	Bering Strait	252.3	249.6	253.3	252.3	260.0	250.3	247.8	246.0	248.3	247.3	248.4	250.6	253.1	249.1	247.5	242.5	237.2	242.2	245.0	244.3	239.6	228.7	227.8	228.7	221.4	222.3	218.0	216.1	213.7	217.8	-9999.0
128	Arctic subocean	217.2	208.0	207.2	205.0	188.2	181.8	180.1	183.6	190.9	188.1	181.6	184.3	191.5	195.0	191.8	189.6	168.8	157.0	159.8	161.2	161.8	160.5	177.9	189.2	174.4	166.8	155.8	148.4	144.1	141.9	-9999.0
130	Chukchi Sea	226.2	240.3	258.7	240.1	229.0	219.0	226.1	231.7	241.4	248.4	243.1	236.5	230.3	230.6	234.3	239.9	238.8	236.5	244.2	250.3	250.5	245.6	237.2	234.1	223.8	221.1	206.7	206.9	226.0	228.1	-9999.0
132	Beaufort Sea	252.7	255.3	261.0	269.1	271.4	272.5	266.8	259.8	256.3	259.6	261.9	278.4	281.9	269.3	261.2	259.1	251.6	252.7	247.9	240.9	242.2	248.0	242.0	241.7	245.3	235.4	232.4	225.3	217.1	213.3	-9999.0
134	Arctic Archipelago	254.7	250.3	247.6	246.9	238.9	226.9	231.8	220.5	201.5	207.0	208.0	215.4	225.0	233.5	234.4	228.1	215.2	210.2	206.7	195.2	190.7	190.4	189.9	198.5	201.5	199.9	204.3	207.3	202.7	191.0	-9999.0
136	Foxe Basin	241.0	233.5	237.8	237.8	241.8	246.0	244.4	245.9	234.0	209.6	208.4	205.9	207.2	205.2	212.4	219.5	218.5	213.9	207.9	202.1	203.0	203.7	205.8	207.3	205.9	205.5	202.7	200.1	195.8	196.8	-9999.0
138	Baffin Bay	191.6	187.0	186.0	181.6	179.9	179.4	188.1	190.1	192.2	183.3	171.0	169.6	168.4	166.7	166.0	163.5	154.9	156.5	151.4	155.5	156.4	152.7	167.2	166.4	159.1	155.3	148.2	139.7	141.3	135.8	-9999.0
139	South Greenland	192.6	185.4	184.6	186.1	200.6	206.1	210.4	207.7	209.2	204.4	192.6	197.5	197.5	186.0	177.6	176.9	194.3	188.9	184.2	184.6	187.0	191.7	195.7	175.9	167.9	165.3	162.7	157.5	148.9	141.5	-9999.0
140	Greenland Sea	187.4	185.3	178.9	178.2	164.8	163.3	168.2	174.7	173.6	169.1	160.5	160.9	166.9	173.1	171.3	160.6	157.5	145.8	150.8	156.0	155.9	151.9	146.4	158.9	158.7	147.2	139.1	137.8	127.3	127.7	-9999.0
142	Norwegian Sea	260.2	269.3	271.7	249.6	243.9	255.3	283.5	265.2	254.4	248.3	243.3	249.8	248.8	254.2	271.3	269.5	267.4	263.4	268.9	267.2	260.3	259.6	250.1	252.5	261.4	256.5	269.6	281.9	268.4	262.3	-9999.0
144	Barents Sea	275.8	261.2	265.0	283.9	272.9	250.6	244.0	249.0	244.2	242.1	243.1	244.9	242.9	247.9	252.6	251.3	243.2	242.9	238.7	247.5	241.8	232.1	234.6	235.1	230.5	232.2	238.2	242.9	248.5	258.7	-9999.0
146	Kara Sea	276.2	282.7	287.7	289.7	291.5	289.2	280.5	276.1	281.0	279.7	278.9	276.9	271.2	268.2	269.0	278.8	280.5	273.3	264.9	257.9	247.6	243.8	235.9	228.0	229.6	235.5	243.6	249.3	251.1	253.4	-9999.0
148	Laptev Sea	233.2	231.8	234.8	245.2	260.2	268.4	268.9	264.4	257.6	262.2	268.3	266.8	257.8	246.5	241.5	231.7	231.2	240.7	247.3	252.1	254.3	249.8	247.3	244.3	225.9	212.1	208.2	204.0	199.8	200.7	-9999.0
150	East Siberian Sea	258.2	252.0	242.3	249.7	263.6	273.5	271.8	270.6	269.5	266.6	263.7	262.9	264.7	257.8	237.3	231.3	242.1	240.4	225.6	214.3	212.0	210.1	215.8	232.5	241.2	232.8	221.9	228.3	222.4	222.5	-9999.0
152	Gulf of Alaska	253.6	247.1	264.4	279.5	275.4	253.6	251.4	253.9	253.8	249.3	255.2	265.0	267.9	256.3	244.9	246.6	254.1	247.0	243.4	242.4	236.8	239.8	246.8	243.5	231.0	229.4	226.1	219.8	214.1	211.0	-9999.0
154	Southeast Bering Sea	254.3	252.2	250.8	267.5	274.7	270.8	264.5	258.3	264.1	264.5	258.7	254.2	259.0	258.2	262.4	271.3	266.8	262.9	259.9	253.7	260.5	261.7	258.8	243.5	244.6	237.8	231.3	215.3	211.6	227.1	-9999.0