1958 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	249.7	249.3	252.1	252.2	250.6	248.8	247.2	244.7	243.3	242.2	242.7	241.0	237.5	234.0	232.8	231.7	236.3	239.3	236.6	233.9	229.3	226.5	224.7	222.4	220.8	217.9	219.8	221.7	219.7	218.9	-9999.0
34	Hudson Bay	272.7	275.7	278.5	274.8	275.5	277.4	271.7	273.6	271.0	266.6	273.4	275.3	274.6	271.1	264.3	249.4	259.6	270.5	275.2	282.3	272.3	264.3	265.6	270.4	261.9	246.2	249.0	250.0	237.0	228.3	-9999.0
36	Hudson Strait	254.1	234.7	239.5	268.2	255.8	247.6	237.8	236.5	232.3	230.1	231.0	230.1	237.7	232.2	235.4	223.3	228.1	229.7	233.5	265.8	266.9	281.4	262.8	241.5	245.7	242.1	230.6	221.5	218.9	216.5	-9999.0
98	Bering Strait	240.7	240.5	244.4	247.1	244.0	245.5	247.6	241.9	240.9	244.3	251.6	253.0	249.8	251.1	246.6	233.0	223.7	221.1	218.7	218.4	211.2	214.2	220.6	217.6	210.8	206.8	210.7	207.2	197.1	205.6	-9999.0
128	Arctic subocean	204.9	203.4	197.8	198.3	195.8	193.9	184.6	184.7	188.9	179.6	182.2	169.0	162.0	157.4	160.5	160.3	176.9	174.4	161.1	155.2	158.6	163.7	161.8	157.5	158.7	163.5	157.1	145.6	144.0	145.3	-9999.0
130	Chukchi Sea	236.1	240.3	242.0	237.1	247.5	249.0	242.8	242.6	236.8	244.5	255.2	260.4	256.0	244.0	229.3	234.9	230.5	229.9	216.8	214.0	212.2	214.4	224.8	223.0	213.2	215.3	214.4	210.8	206.5	202.7	-9999.0
132	Beaufort Sea	257.7	254.1	252.3	257.2	257.5	259.2	262.1	255.2	264.6	264.3	261.7	271.4	266.6	256.0	245.0	251.5	252.5	245.6	242.0	235.7	234.9	231.5	228.6	232.7	236.4	233.2	231.4	225.2	212.7	203.7	-9999.0
134	Arctic Archipelago	246.1	248.0	243.3	238.1	238.6	236.5	235.3	237.3	238.7	235.5	224.7	217.4	212.5	215.1	226.9	230.5	227.8	220.4	214.2	203.5	202.9	201.7	200.2	202.7	208.6	208.3	202.3	189.2	180.1	175.4	-9999.0
136	Foxe Basin	230.4	232.6	233.5	236.5	238.1	239.5	239.6	234.5	232.9	235.0	236.2	232.8	227.9	213.5	212.4	224.0	231.1	232.4	231.9	220.8	203.8	217.1	227.8	216.1	204.6	206.9	208.1	200.6	197.9	192.6	-9999.0
138	Baffin Bay	173.5	177.0	178.9	177.6	175.1	168.0	160.7	160.2	159.3	159.8	163.5	163.4	157.5	144.8	142.3	141.4	167.6	175.2	165.8	159.2	147.9	142.6	138.7	134.0	141.7	152.5	157.8	159.4	160.1	173.8	-9999.0
139	South Greenland	198.0	198.5	210.7	220.5	206.0	197.3	203.3	197.2	187.1	194.6	199.2	183.1	178.3	196.3	186.1	185.2	208.9	209.3	205.7	195.1	174.6	155.7	172.3	189.5	191.5	191.0	198.2	213.5	216.4	210.0	-9999.0
140	Greenland Sea	162.7	167.4	165.5	164.7	172.3	159.8	157.3	143.6	143.9	140.6	141.6	144.1	143.1	142.6	155.7	129.2	150.1	180.5	166.4	167.9	154.6	137.5	135.6	127.2	124.1	134.8	140.3	151.1	154.1	168.7	-9999.0
142	Norwegian Sea	306.4	303.9	293.1	288.3	274.3	272.3	278.1	259.7	261.9	257.5	258.0	263.8	270.7	254.9	250.2	263.4	270.5	265.1	265.5	268.4	269.6	267.5	267.4	260.8	262.8	250.9	245.0	252.9	260.6	259.6	-9999.0
144	Barents Sea	267.4	277.3	287.9	258.1	250.0	249.1	257.1	256.3	229.0	231.7	237.7	240.2	247.9	243.7	232.1	222.0	224.7	237.0	230.3	240.8	239.7	240.8	242.0	249.1	254.1	248.2	241.7	235.4	230.9	231.5	-9999.0
146	Kara Sea	270.1	269.8	267.7	266.5	265.8	260.2	250.4	245.5	249.0	243.4	239.4	235.8	233.6	238.3	247.7	249.6	249.8	245.8	240.2	231.6	230.4	228.6	224.1	219.6	219.5	219.5	228.1	235.5	240.4	240.7	-9999.0
148	Laptev Sea	241.4	234.1	243.6	250.0	246.3	249.4	261.0	259.2	251.8	255.0	255.9	248.3	232.4	214.4	213.6	226.3	238.9	247.9	250.8	250.4	245.7	239.3	233.8	226.3	218.7	214.7	213.1	220.8	221.0	218.3	-9999.0
150	East Siberian Sea	222.8	224.3	237.1	243.3	250.2	249.1	243.1	250.1	253.4	252.7	252.6	258.3	260.9	248.6	230.9	225.0	214.9	227.9	229.1	220.7	219.7	229.5	215.9	200.4	201.0	199.8	196.5	192.8	200.6	203.9	-9999.0
152	Gulf of Alaska	249.6	252.0	250.2	252.8	252.7	250.5	248.0	245.8	245.0	253.9	258.1	254.7	255.1	255.0	248.8	244.5	231.4	236.4	234.1	230.6	223.1	227.6	241.9	233.2	225.5	228.6	232.5	219.5	218.4	252.9	-9999.0
154	Southeast Bering Sea	254.2	258.8	255.1	255.0	254.1	255.1	257.2	255.1	270.7	280.7	277.9	273.7	278.1	279.2	275.0	266.8	256.8	254.9	233.9	227.8	228.6	250.4	250.4	222.8	232.2	235.8	228.6	222.5	229.0	259.9	-9999.0