1978 04 - daily  - mean of NCEP mean Daily Downward Longwave Radiation 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	201.8	199.9	203.6	206.6	205.6	204.3	203.1	208.6	212.6	215.2	218.4	213.5	209.4	210.7	211.1	210.5	214.3	214.5	217.3	216.0	218.3	219.9	218.2	220.8	222.6	225.3	225.7	227.3	231.1	229.0	-9999.0
34	Hudson Bay	206.8	219.1	234.4	224.4	224.2	230.2	207.0	219.9	243.8	246.2	248.0	243.8	239.9	226.2	208.7	221.0	243.0	236.4	225.6	206.6	215.8	225.5	231.1	225.9	237.0	244.5	253.4	245.2	244.2	249.0	-9999.0
36	Hudson Strait	173.6	143.5	177.6	212.4	199.3	198.0	219.8	254.4	224.1	214.3	219.9	228.2	208.2	187.3	169.1	173.0	191.3	199.2	238.8	197.7	193.7	198.7	215.0	209.2	175.9	192.2	219.3	211.1	230.2	248.7	-9999.0
98	Bering Strait	186.2	187.0	177.5	190.5	190.7	198.4	204.2	211.4	217.2	218.3	205.5	205.3	211.2	231.4	234.5	229.2	232.5	236.3	227.9	222.4	227.4	227.8	241.4	227.9	232.5	233.2	239.4	236.2	233.0	217.6	-9999.0
128	Arctic subocean	154.0	130.9	128.8	121.6	132.8	143.6	162.1	142.4	129.5	141.4	143.9	144.4	143.7	130.6	134.0	132.5	143.4	159.1	174.5	172.3	154.8	180.3	191.4	186.6	192.2	176.0	153.1	161.0	182.6	194.3	-9999.0
130	Chukchi Sea	150.3	156.3	157.6	181.2	217.5	193.8	168.8	174.4	186.2	174.5	168.6	184.7	200.2	272.2	249.1	226.0	198.3	244.1	243.7	217.9	215.3	226.6	228.0	225.0	222.1	205.2	214.4	222.9	221.7	214.3	-9999.0
132	Beaufort Sea	211.8	203.2	199.7	210.3	203.3	176.3	201.1	230.0	227.3	241.6	251.1	220.6	211.5	217.1	220.1	224.5	225.5	222.2	226.5	227.3	217.2	198.9	203.2	221.0	218.1	241.2	249.0	265.0	266.8	235.6	-9999.0
134	Arctic Archipelago	167.9	151.2	145.7	155.0	164.4	159.3	165.1	170.4	168.5	163.3	190.9	213.6	183.1	158.2	179.7	183.2	166.0	175.9	191.6	200.6	188.4	189.3	177.9	181.4	183.9	184.2	177.6	194.1	229.2	250.6	-9999.0
136	Foxe Basin	160.1	162.2	187.0	181.6	153.7	169.6	185.2	209.2	165.8	197.5	192.6	196.7	183.4	145.6	167.4	185.4	167.7	153.9	162.7	192.0	195.1	202.9	210.7	199.1	176.0	215.4	212.1	180.5	173.7	188.9	-9999.0
138	Baffin Bay	105.9	115.8	140.4	150.3	153.2	133.7	110.2	139.3	165.6	159.9	137.5	135.5	159.3	138.2	125.7	111.1	134.7	174.2	194.0	166.9	179.7	200.4	194.2	194.9	197.3	156.7	144.7	163.8	155.4	155.6	-9999.0
139	South Greenland	149.7	159.3	190.5	215.0	190.1	185.1	156.8	176.0	183.8	192.2	178.4	151.1	153.3	171.0	179.5	197.0	225.7	220.7	203.8	190.6	187.3	177.4	174.9	201.8	212.1	197.2	172.5	190.1	212.9	198.9	-9999.0
140	Greenland Sea	124.9	108.9	123.4	148.9	159.7	184.5	159.8	110.2	129.5	127.0	115.5	102.2	111.3	121.8	132.8	141.4	172.4	189.1	181.0	168.1	161.5	160.6	163.8	167.4	185.5	193.8	164.2	147.8	155.4	148.7	-9999.0
142	Norwegian Sea	220.7	224.6	235.4	224.4	267.0	277.8	255.1	281.0	256.8	234.5	239.1	240.2	251.2	241.4	234.4	222.9	227.6	237.4	253.8	243.8	251.3	261.4	268.6	223.4	214.0	223.9	226.4	230.7	233.1	235.7	-9999.0
144	Barents Sea	246.3	238.9	217.7	212.8	211.1	217.1	215.5	203.6	191.6	208.0	226.0	220.1	264.9	258.4	253.5	257.8	248.0	200.7	202.8	225.4	228.3	217.0	198.2	204.7	202.7	209.1	220.8	209.3	208.9	214.1	-9999.0
146	Kara Sea	241.6	233.6	231.1	227.2	225.0	214.1	224.9	233.6	225.3	223.3	225.2	215.2	203.0	214.9	227.9	220.9	217.5	224.9	236.9	241.5	244.3	250.2	242.3	244.1	245.2	240.6	234.8	237.9	243.8	248.3	-9999.0
148	Laptev Sea	187.6	195.9	199.1	202.2	211.8	227.1	209.1	191.7	207.7	221.0	232.4	239.3	227.6	224.4	215.8	214.8	207.5	196.8	195.5	203.7	216.0	212.4	212.5	216.3	216.2	219.1	225.6	229.2	229.3	218.8	-9999.0
150	East Siberian Sea	162.3	167.2	173.5	163.7	164.5	164.6	181.1	184.7	199.9	189.4	186.4	195.5	196.1	189.6	183.4	171.4	193.1	210.4	207.3	201.2	191.9	201.5	204.0	201.6	195.4	218.1	236.4	219.6	207.4	208.3	-9999.0
152	Gulf of Alaska	236.7	222.5	213.4	241.5	216.8	233.4	257.4	258.6	247.2	237.3	230.4	229.4	213.9	234.3	243.5	223.8	237.5	228.1	217.4	228.8	244.1	244.6	233.1	236.6	259.1	277.0	235.2	242.9	237.1	251.1	-9999.0
154	Southeast Bering Sea	226.4	179.1	216.6	271.9	220.9	249.3	258.9	255.3	274.5	227.1	245.2	243.5	272.3	290.4	260.9	222.0	212.8	223.1	240.2	247.0	245.9	257.3	244.7	257.0	262.9	261.0	244.9	247.4	255.4	239.9	-9999.0