1981 04 - daily  - mean of NCEP mean Daily Near IR Beam Downward Solar 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	60.2	58.3	57.8	63.4	60.8	62.0	63.3	65.8	66.7	64.4	69.5	73.4	73.4	68.8	73.3	76.1	74.0	74.6	76.3	74.5	71.3	75.7	78.5	77.8	81.6	79.8	81.7	81.6	86.8	81.9	-9999.0
34	Hudson Bay	64.4	79.1	70.2	79.1	70.5	61.4	67.3	73.4	86.1	75.9	95.8	78.9	87.3	87.8	91.9	93.6	72.7	88.9	107.6	88.7	64.2	77.4	89.8	79.2	99.5	90.6	92.1	94.5	108.6	92.9	-9999.0
36	Hudson Strait	69.4	41.8	70.9	101.1	78.7	47.2	58.7	88.0	100.3	52.9	62.1	97.4	76.1	45.7	76.5	88.6	64.6	79.1	52.2	71.4	37.2	38.6	73.8	112.4	68.0	60.7	62.8	89.3	90.5	83.0	-9999.0
98	Bering Strait	56.5	47.8	61.7	71.8	71.9	74.1	72.7	57.5	54.9	72.6	80.4	87.6	86.4	96.7	97.9	102.0	99.8	96.6	81.8	86.0	90.9	93.6	89.7	86.7	95.2	77.1	70.7	64.7	73.1	69.8	-9999.0
128	Arctic subocean	49.2	45.2	46.1	48.6	50.4	51.4	52.8	40.4	27.6	51.4	49.6	58.7	36.5	72.3	80.0	86.7	85.2	73.7	56.9	67.6	64.6	81.1	59.9	75.0	95.7	106.8	106.0	97.1	104.4	108.5	-9999.0
130	Chukchi Sea	43.7	51.0	41.5	52.8	67.5	71.5	66.8	64.0	47.8	44.4	45.5	72.9	97.0	103.6	96.8	96.3	104.0	105.8	98.7	82.4	91.9	73.9	101.5	110.4	102.9	86.8	48.4	46.1	55.7	42.8	-9999.0
132	Beaufort Sea	63.7	44.5	49.8	71.3	41.0	52.2	61.5	64.5	48.7	48.5	66.9	74.1	75.1	64.4	63.0	56.5	63.5	92.7	74.4	58.6	71.0	80.5	72.3	57.3	66.3	72.7	97.9	76.6	84.4	80.8	-9999.0
134	Arctic Archipelago	58.1	65.5	65.1	64.7	68.9	65.3	55.3	47.3	51.0	44.3	43.6	53.2	54.5	48.1	61.4	52.4	61.8	58.1	74.5	91.9	85.9	79.4	81.7	81.4	88.2	79.8	88.4	98.6	90.3	91.3	-9999.0
136	Foxe Basin	58.5	45.0	48.3	55.2	73.7	51.0	51.6	77.3	71.7	66.8	42.7	41.6	53.9	57.4	43.2	52.8	46.2	50.6	76.5	56.5	64.7	62.4	33.8	62.3	63.1	62.5	67.8	70.2	79.9	87.9	-9999.0
138	Baffin Bay	61.5	49.0	57.7	62.6	53.2	65.0	72.7	72.2	71.2	79.8	70.3	78.4	75.4	85.7	58.1	78.9	62.3	34.4	57.8	81.6	76.4	60.8	72.4	54.7	102.7	119.0	120.2	122.9	97.7	77.3	-9999.0
139	South Greenland	72.1	70.2	55.3	38.2	67.3	75.5	80.1	88.2	96.1	98.1	98.0	98.5	94.8	64.6	68.4	70.3	68.3	65.8	83.1	83.8	90.3	100.5	108.3	113.4	101.7	92.4	89.5	81.6	101.5	111.8	-9999.0
140	Greenland Sea	52.1	58.8	45.3	63.6	62.7	65.9	52.9	36.8	48.9	52.0	58.8	56.8	58.6	82.1	69.5	65.8	94.5	62.9	71.3	98.9	98.7	109.4	72.5	93.8	76.1	86.1	101.1	122.0	136.3	122.9	-9999.0
142	Norwegian Sea	42.2	18.3	53.7	51.4	33.2	29.6	50.3	55.5	27.6	19.3	66.8	22.3	50.3	45.1	52.2	72.3	47.5	48.1	66.5	54.6	80.5	52.1	70.6	69.1	79.6	71.0	73.7	105.2	66.6	67.7	-9999.0
144	Barents Sea	70.9	56.8	28.5	53.3	70.5	39.3	53.9	69.4	66.7	73.2	44.7	65.4	59.7	56.7	61.6	79.6	84.7	54.7	74.6	66.2	66.4	58.0	50.9	60.5	77.1	67.8	89.1	73.8	53.6	65.0	-9999.0
146	Kara Sea	59.3	59.1	67.0	63.1	56.2	65.2	64.3	65.6	64.4	60.5	71.4	70.4	65.9	57.3	67.7	70.8	73.3	73.0	73.9	69.3	67.4	70.8	77.1	84.1	74.2	73.7	75.0	81.1	86.1	82.7	-9999.0
148	Laptev Sea	57.2	48.7	41.6	45.7	53.2	63.5	61.1	64.5	68.1	66.0	62.7	77.8	71.0	67.4	74.2	75.2	71.8	67.0	57.1	65.1	65.3	71.7	72.9	63.7	74.5	79.7	65.3	63.5	79.8	78.5	-9999.0
150	East Siberian Sea	53.2	66.7	62.7	73.8	72.7	63.7	47.9	60.5	60.3	48.8	36.1	50.9	78.1	72.2	69.1	77.7	77.8	86.6	79.0	82.7	71.1	78.0	78.6	73.3	75.3	70.1	74.3	86.0	62.6	47.6	-9999.0
152	Gulf of Alaska	44.1	59.5	73.4	75.6	87.1	71.5	79.4	73.9	86.2	93.1	99.1	93.4	88.4	94.6	95.8	97.0	79.9	62.4	61.2	56.9	75.3	85.3	91.9	92.8	95.3	99.6	104.9	84.8	111.7	95.1	-9999.0
154	Southeast Bering Sea	54.2	51.3	68.4	81.3	56.1	45.7	79.5	44.8	37.9	73.4	94.4	103.7	113.5	113.4	113.7	106.1	100.5	84.4	93.6	97.8	100.9	102.4	97.7	89.6	83.1	104.3	88.5	50.4	77.9	48.0	-9999.0