1970 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	255.6	256.0	255.6	255.3	254.8	254.3	252.8	250.4	247.3	245.6	242.9	241.2	240.2	240.0	240.5	240.0	240.3	240.0	237.7	237.8	236.7	235.2	233.3	230.6	229.0	228.2	227.4	227.7	228.6	226.7	-9999.0
34	Hudson Bay	289.9	298.9	296.3	290.1	292.9	303.3	302.2	289.9	278.6	268.1	252.2	236.1	231.5	232.2	244.2	254.9	258.6	262.5	266.7	273.3	271.2	257.8	251.3	250.6	252.7	249.4	246.7	246.0	254.3	260.0	-9999.0
36	Hudson Strait	253.0	241.4	250.7	252.4	250.2	251.1	261.0	295.7	285.5	284.6	288.0	259.0	243.3	229.3	227.8	236.9	237.2	239.9	224.5	214.9	211.1	216.8	223.3	217.9	214.0	216.8	246.0	229.1	218.0	209.0	-9999.0
98	Bering Strait	254.4	253.9	249.0	251.3	248.5	232.9	226.3	222.3	222.3	226.3	239.5	265.1	264.2	240.3	233.9	237.9	242.2	229.6	214.0	215.9	213.2	207.2	201.6	197.2	206.7	217.9	217.5	207.6	205.9	208.5	-9999.0
128	Arctic subocean	196.3	183.6	183.9	188.1	185.8	186.8	190.4	185.6	179.9	176.5	182.6	189.1	184.2	181.1	186.0	184.3	184.3	173.1	171.4	173.7	174.4	177.4	172.7	169.2	174.1	180.1	170.9	169.0	173.1	175.3	-9999.0
130	Chukchi Sea	241.6	241.3	236.3	233.3	227.5	225.4	210.7	224.9	239.2	245.0	249.4	262.1	244.4	222.3	227.4	227.7	223.5	212.2	210.1	206.1	210.4	209.0	205.8	202.9	203.9	205.3	196.7	189.6	189.3	190.5	-9999.0
132	Beaufort Sea	268.6	265.7	266.7	267.3	268.6	255.2	238.7	230.1	223.5	219.0	214.9	226.8	239.6	239.5	239.1	232.9	236.4	246.4	246.0	244.4	240.7	240.3	227.5	214.0	209.6	223.9	232.7	244.7	249.1	246.1	-9999.0
134	Arctic Archipelago	238.2	226.3	215.9	217.4	224.7	236.7	240.3	233.2	219.5	204.3	209.2	216.0	214.0	216.0	210.7	203.8	202.9	208.4	211.3	211.4	212.7	220.5	221.3	216.8	209.7	198.2	192.8	189.0	195.2	193.5	-9999.0
136	Foxe Basin	236.3	238.7	239.1	234.2	227.9	227.0	241.8	249.9	244.9	231.0	226.3	228.8	229.2	220.8	216.7	222.4	223.3	216.4	217.6	217.6	213.1	210.8	211.1	216.5	213.5	208.9	207.1	209.2	209.8	208.2	-9999.0
138	Baffin Bay	182.8	182.1	180.9	174.3	169.3	170.1	166.1	163.2	160.4	164.9	157.7	158.3	169.0	194.8	191.8	186.0	177.6	171.3	174.5	171.0	173.0	171.8	177.1	181.5	184.8	187.0	177.8	178.1	174.1	163.8	-9999.0
139	South Greenland	164.8	169.5	178.3	174.7	168.9	165.8	163.9	171.8	186.4	195.1	184.3	184.4	197.3	201.6	184.0	178.5	174.9	169.3	164.7	180.0	183.6	196.9	204.3	204.2	202.2	198.7	195.0	191.3	185.7	179.0	-9999.0
140	Greenland Sea	169.6	176.8	167.7	156.6	162.6	160.4	155.3	152.4	149.4	152.4	152.8	155.0	159.2	175.1	182.6	168.7	155.3	155.4	152.0	155.3	155.9	162.9	167.7	173.3	179.7	179.2	175.0	178.1	171.2	169.6	-9999.0
142	Norwegian Sea	282.2	268.2	266.4	264.7	260.7	243.7	232.9	243.2	266.1	276.5	269.4	265.3	262.7	270.4	267.5	263.9	266.8	271.2	256.2	249.5	238.9	240.4	240.5	235.2	230.4	233.3	238.2	266.8	266.2	265.7	-9999.0
144	Barents Sea	259.4	282.4	292.4	288.3	291.7	289.4	289.3	275.9	260.6	270.5	273.7	273.7	282.4	284.1	286.1	283.1	282.1	283.3	273.7	269.8	258.8	253.1	261.4	256.8	246.2	239.9	238.8	234.7	231.6	232.4	-9999.0
146	Kara Sea	260.8	255.7	260.1	265.6	265.8	270.3	272.3	274.0	273.4	268.2	265.8	267.6	264.4	260.0	257.7	255.8	255.4	255.6	253.7	251.9	253.9	254.2	253.5	252.1	250.7	249.8	248.1	250.5	249.5	241.8	-9999.0
148	Laptev Sea	270.9	271.6	261.6	257.3	254.3	252.6	251.4	250.5	249.0	254.4	249.3	235.8	231.8	236.9	242.2	241.5	241.8	239.4	238.6	235.5	234.0	231.5	228.2	224.0	217.1	211.7	214.8	217.8	220.7	225.3	-9999.0
150	East Siberian Sea	259.3	262.2	263.3	266.3	262.2	248.2	251.2	255.2	258.2	256.0	255.9	237.3	222.2	231.6	234.8	238.1	240.4	241.6	242.0	242.1	238.9	237.4	235.3	234.2	230.5	225.3	212.2	207.7	206.3	199.4	-9999.0
152	Gulf of Alaska	260.7	259.1	260.0	261.0	252.9	244.1	237.5	221.4	221.5	225.1	243.0	269.9	271.0	268.6	258.6	257.6	262.8	252.2	228.8	225.9	216.8	210.4	207.1	217.7	245.0	249.4	252.3	243.0	242.0	239.4	-9999.0
154	Southeast Bering Sea	272.0	270.6	260.6	273.7	262.3	243.0	240.2	218.0	220.8	238.9	286.6	300.0	297.6	286.6	279.3	273.1	266.8	240.0	223.1	219.6	218.8	226.4	231.4	233.0	233.2	232.4	230.7	215.9	216.2	225.7	-9999.0