1988 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	195.9	194.5	197.7	201.0	203.8	203.9	201.1	199.5	201.8	210.5	215.6	217.8	214.1	211.8	211.1	214.8	212.9	217.7	220.9	221.3	220.6	219.2	222.6	225.4	228.9	228.2	225.6	226.0	227.0	230.2	-9999.0
34	Hudson Bay	238.8	242.0	260.5	256.7	240.4	240.3	227.8	225.2	228.1	223.0	240.7	248.5	229.8	225.2	231.8	246.0	220.6	219.5	230.3	230.3	234.4	233.5	239.5	232.7	225.5	223.4	234.1	247.3	259.9	270.2	-9999.0
36	Hudson Strait	211.5	188.6	224.9	195.6	206.2	248.5	258.6	204.6	181.9	179.2	194.9	218.1	234.6	237.9	228.5	241.8	227.7	261.4	244.7	240.5	251.0	236.8	206.2	208.2	203.3	197.9	206.2	198.0	215.8	216.2	-9999.0
98	Bering Strait	194.7	193.5	186.5	189.0	183.0	180.1	181.0	186.8	196.3	203.0	204.1	220.4	216.0	227.7	219.1	241.6	235.2	233.8	227.6	227.2	230.2	215.7	214.9	218.1	236.7	241.6	240.9	241.7	240.3	244.0	-9999.0
128	Arctic subocean	123.0	132.6	143.1	116.4	127.8	138.0	148.4	150.4	174.4	179.5	184.0	187.7	169.1	165.5	168.9	185.9	190.4	196.1	207.3	187.0	177.2	197.2	209.6	201.6	174.0	163.1	175.4	168.2	170.3	161.1	-9999.0
130	Chukchi Sea	154.8	151.5	140.0	148.0	153.9	151.5	158.2	153.5	157.6	162.9	169.3	202.9	210.9	223.4	224.0	240.9	242.3	243.4	248.2	234.4	248.7	232.6	207.8	218.4	244.7	234.8	234.5	218.9	202.1	218.2	-9999.0
132	Beaufort Sea	225.5	213.8	216.5	228.3	215.4	218.9	223.1	208.3	205.4	231.7	235.3	215.5	221.0	241.3	261.6	233.7	229.4	242.0	248.5	234.7	225.3	225.7	230.1	226.4	231.6	238.2	240.9	241.1	253.8	257.2	-9999.0
134	Arctic Archipelago	176.3	175.0	149.0	132.1	142.0	163.7	179.3	180.7	190.6	207.4	221.2	207.8	188.5	177.7	180.9	174.7	180.9	192.9	199.8	202.5	211.4	202.4	213.4	206.0	200.7	187.2	186.9	183.8	182.9	190.0	-9999.0
136	Foxe Basin	184.8	161.6	188.9	174.6	148.5	127.5	121.4	149.3	162.9	192.4	231.3	242.7	221.6	213.0	217.2	232.5	225.7	214.4	234.1	209.4	190.5	194.2	184.8	197.0	200.4	207.4	204.4	204.9	224.0	190.3	-9999.0
138	Baffin Bay	94.4	101.3	109.6	106.2	102.1	94.4	93.9	105.4	141.3	140.7	154.4	165.4	168.2	169.0	143.8	146.3	151.1	160.5	165.7	154.2	146.0	146.8	168.6	172.5	171.9	192.0	187.0	173.4	169.5	179.7	-9999.0
139	South Greenland	184.5	166.0	149.2	136.2	133.2	127.3	148.2	170.7	126.3	120.4	119.5	128.5	154.6	151.0	165.8	169.7	156.9	152.9	146.3	145.0	145.4	156.6	203.8	200.7	221.9	215.3	189.1	185.5	178.7	176.8	-9999.0
140	Greenland Sea	108.2	103.6	119.6	112.7	99.9	90.0	88.3	95.0	99.7	126.4	133.5	136.0	134.1	135.7	137.8	150.2	147.3	145.3	170.8	160.2	141.3	143.1	145.0	155.0	159.3	190.8	188.6	157.4	148.5	148.4	-9999.0
142	Norwegian Sea	256.8	240.1	255.5	286.1	269.9	275.0	259.7	223.7	214.9	227.3	232.4	220.8	213.7	231.4	249.8	271.8	243.3	226.3	221.4	225.0	215.8	213.3	223.0	231.4	206.1	220.8	257.9	247.3	237.1	242.7	-9999.0
144	Barents Sea	247.0	248.8	258.2	263.2	265.2	224.7	189.4	209.9	221.2	230.1	197.5	184.4	198.1	220.4	208.2	215.2	253.5	263.8	226.8	213.3	235.7	231.7	217.4	237.8	258.6	250.1	246.5	236.0	242.5	250.6	-9999.0
146	Kara Sea	195.3	197.1	201.0	217.3	233.2	228.0	219.4	216.2	220.0	231.2	245.7	243.3	231.5	211.0	208.5	227.1	231.8	223.5	229.5	242.5	238.6	236.5	238.2	246.4	252.5	246.0	238.6	240.7	234.7	242.1	-9999.0
148	Laptev Sea	173.5	173.4	176.3	181.5	193.6	215.5	218.0	204.3	205.0	225.3	201.7	210.4	220.7	230.7	206.3	187.8	191.8	220.6	232.1	224.5	218.9	221.7	225.0	227.4	219.3	221.3	215.3	214.4	217.0	215.4	-9999.0
150	East Siberian Sea	169.6	176.0	168.6	166.9	176.8	166.6	173.5	187.2	188.9	166.8	185.1	204.4	191.4	179.0	204.3	198.5	180.3	185.6	181.0	198.9	205.3	205.7	195.0	193.1	203.2	206.3	205.0	217.6	213.2	200.9	-9999.0
152	Gulf of Alaska	234.1	226.0	222.1	219.0	211.7	206.5	211.3	219.1	252.2	245.7	244.6	261.6	251.6	244.2	249.9	250.0	236.5	241.4	235.6	228.6	237.5	228.1	224.1	240.3	266.4	271.6	273.6	276.7	267.8	238.7	-9999.0
154	Southeast Bering Sea	228.1	226.2	204.9	183.6	179.3	179.5	175.2	168.1	175.6	194.2	267.7	257.2	239.5	239.7	272.3	252.4	257.1	256.5	244.7	268.8	242.3	231.5	243.4	256.6	253.1	274.8	262.9	250.7	243.5	239.1	-9999.0