1991 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	206.4	204.2	204.7	208.2	208.7	210.6	208.4	208.3	208.3	208.7	207.6	211.4	216.2	216.3	213.5	215.9	221.1	224.8	224.9	225.9	225.1	222.9	222.4	223.8	226.4	228.7	225.8	227.9	227.0	229.2	-9999.0
34	Hudson Bay	219.1	237.8	247.3	248.6	249.6	251.1	245.4	223.9	218.2	228.6	223.9	226.2	235.3	247.8	252.5	235.1	227.3	223.9	223.4	235.9	247.6	244.7	244.9	243.0	252.8	263.8	266.2	273.6	270.6	273.2	-9999.0
36	Hudson Strait	201.7	192.2	204.2	216.6	179.3	161.8	169.2	205.8	180.4	184.4	174.3	202.5	209.0	224.7	162.7	164.9	178.8	197.0	206.1	203.3	185.4	217.7	267.3	271.0	214.7	201.5	196.6	193.2	212.2	232.2	-9999.0
98	Bering Strait	188.2	187.0	188.8	184.5	190.8	188.0	188.7	201.1	201.7	205.2	215.2	223.6	211.0	221.2	231.4	243.3	249.2	237.9	241.3	253.9	238.8	242.2	223.1	233.3	229.3	220.8	227.6	217.7	218.2	236.8	-9999.0
128	Arctic subocean	155.4	146.3	139.2	133.5	128.1	136.4	138.6	136.3	124.2	118.5	111.1	115.3	118.2	138.6	165.5	147.0	155.9	157.2	141.3	155.1	167.7	185.3	186.8	182.0	186.8	193.6	191.4	192.8	175.4	170.9	-9999.0
130	Chukchi Sea	186.2	171.6	162.7	160.4	162.1	150.7	160.4	163.7	172.6	188.9	215.4	219.9	212.3	207.5	207.1	215.4	230.6	239.0	208.8	234.0	230.6	227.9	212.8	218.3	226.6	203.3	216.9	243.2	222.5	216.8	-9999.0
132	Beaufort Sea	237.2	215.0	206.0	219.1	208.1	215.9	206.2	207.1	217.7	220.9	220.6	244.5	250.9	245.9	228.9	230.8	244.5	248.9	253.3	247.5	245.3	240.6	234.1	231.7	234.6	232.6	233.1	239.7	234.4	226.7	-9999.0
134	Arctic Archipelago	190.4	195.2	167.3	165.9	182.7	187.5	181.8	183.6	175.2	176.7	169.4	185.2	166.0	155.7	164.2	155.9	173.5	192.8	206.0	217.0	193.8	180.2	168.8	187.4	209.6	199.3	206.6	219.2	201.0	189.5	-9999.0
136	Foxe Basin	164.5	173.0	196.3	185.7	156.4	175.5	196.6	193.7	203.1	164.1	174.5	177.9	164.1	142.0	151.9	182.6	199.2	217.0	191.5	178.8	190.6	201.3	213.7	197.2	177.2	177.9	184.2	194.7	220.5	228.4	-9999.0
138	Baffin Bay	119.8	136.0	141.7	127.1	114.8	118.7	126.7	118.1	116.5	113.7	113.6	111.8	102.9	106.1	124.1	151.4	164.0	160.3	158.6	156.0	137.3	136.1	149.3	149.3	146.7	155.0	147.8	146.2	151.7	159.7	-9999.0
139	South Greenland	170.8	137.0	132.9	131.6	128.3	123.6	127.6	125.3	129.7	125.4	121.3	139.4	151.1	146.3	181.8	218.8	198.6	213.7	188.7	181.9	184.6	157.9	146.1	139.3	143.6	146.3	148.9	161.0	169.8	184.6	-9999.0
140	Greenland Sea	111.8	107.2	103.4	101.9	95.8	96.2	100.0	106.8	103.3	129.4	135.4	115.3	120.1	101.2	107.2	135.5	140.1	133.8	142.5	126.0	123.0	120.9	143.0	148.0	141.8	140.0	136.5	159.8	169.7	165.0	-9999.0
142	Norwegian Sea	234.7	264.6	265.0	249.4	247.0	275.1	249.7	255.7	258.8	284.9	284.4	296.3	260.2	255.2	268.5	253.2	217.7	211.0	210.2	216.4	235.7	248.9	224.1	236.5	242.2	227.5	238.2	239.4	236.6	236.9	-9999.0
144	Barents Sea	224.6	222.3	262.4	263.0	252.3	249.8	273.6	262.3	259.1	263.6	265.3	267.7	264.9	260.5	248.4	253.4	235.3	231.8	221.2	256.9	274.1	250.9	244.5	265.6	242.4	227.9	251.9	268.9	243.8	230.0	-9999.0
146	Kara Sea	221.0	224.7	220.3	225.2	234.8	235.7	226.8	229.9	232.2	233.8	237.2	234.1	246.1	233.9	221.2	230.7	251.9	250.9	254.9	238.3	238.1	245.4	244.3	239.6	246.0	248.4	238.5	239.7	243.6	240.5	-9999.0
148	Laptev Sea	215.0	194.8	196.8	206.6	204.0	208.9	204.0	213.5	217.8	198.7	190.9	197.4	200.2	213.7	208.6	185.9	182.8	205.6	206.9	222.7	216.5	207.4	221.3	223.6	223.2	234.9	222.3	209.9	209.1	225.2	-9999.0
150	East Siberian Sea	179.6	181.9	178.9	184.6	188.7	198.0	200.1	197.1	191.5	201.7	191.4	164.6	177.8	180.0	193.3	217.0	219.2	210.0	205.6	193.9	196.5	200.1	189.9	199.4	211.2	221.7	211.1	207.4	207.2	203.6	-9999.0
152	Gulf of Alaska	201.9	223.0	223.4	226.7	227.5	220.0	226.8	233.2	219.8	220.4	227.0	256.4	258.0	264.7	259.3	264.5	258.4	262.3	248.0	267.0	258.8	257.1	242.7	248.9	252.0	252.8	244.2	233.3	245.2	272.1	-9999.0
154	Southeast Bering Sea	209.8	219.0	213.7	206.6	213.4	205.9	234.2	229.9	224.5	201.9	200.1	206.0	225.5	275.2	247.5	265.6	241.1	243.1	270.8	261.9	268.9	261.5	240.3	241.7	256.9	255.6	248.6	243.4	250.3	250.5	-9999.0