1956 09 - daily  - mean of NCEP mean Daily Clear Sky Upward 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	69.2	68.1	67.3	66.4	65.5	64.5	63.8	63.1	62.1	61.2	60.6	59.8	58.9	58.4	57.6	56.7	56.0	55.1	54.2	53.4	53.2	53.2	51.8	50.7	49.8	49.0	48.4	49.2	49.5	49.0	-9999.0
34	Hudson Bay	61.6	61.9	61.5	61.3	61.0	60.2	59.8	59.3	58.0	57.6	57.2	56.8	56.6	56.7	55.8	54.8	54.4	53.8	53.7	52.8	51.9	51.7	51.2	50.7	50.1	49.3	50.1	53.0	53.0	50.7	-9999.0
36	Hudson Strait	57.7	56.5	57.7	57.3	58.2	56.7	57.5	55.8	56.1	55.0	55.1	53.4	53.3	53.7	57.7	51.6	50.8	49.6	52.5	49.5	48.1	52.1	48.8	47.9	47.1	46.1	45.1	44.2	43.1	45.5	-9999.0
98	Bering Strait	61.5	60.8	60.2	59.5	58.9	58.3	57.7	57.3	56.4	55.3	54.5	53.7	53.2	53.3	52.8	51.8	51.4	51.0	50.4	50.1	51.9	53.9	49.9	48.8	48.2	47.8	47.1	49.7	50.5	52.1	-9999.0
128	Arctic subocean	107.3	103.4	98.3	95.9	91.9	89.0	85.9	83.7	79.5	76.7	74.5	71.0	69.1	65.8	63.3	60.2	56.7	53.6	50.7	48.3	45.7	42.8	40.5	37.5	34.7	31.8	29.6	27.2	24.7	22.4	-9999.0
130	Chukchi Sea	74.0	72.8	73.4	72.4	71.0	70.2	68.9	67.1	65.9	65.6	64.8	63.8	62.7	62.0	60.8	59.5	58.5	57.7	56.9	55.9	56.8	53.8	52.6	51.5	50.3	50.1	48.9	48.4	48.2	48.6	-9999.0
132	Beaufort Sea	63.3	62.0	61.3	60.9	59.9	59.1	58.2	57.3	56.5	55.7	55.3	54.7	53.7	52.9	52.3	52.0	51.1	50.2	49.2	48.7	48.9	49.3	48.8	48.3	47.9	48.2	47.7	50.3	51.9	46.7	-9999.0
134	Arctic Archipelago	89.4	86.9	85.3	83.6	81.8	80.1	79.2	78.5	76.3	75.7	74.8	74.3	73.4	70.7	70.2	69.5	67.6	65.7	63.5	61.3	59.2	56.9	55.9	54.4	53.8	52.1	51.1	52.5	51.5	50.5	-9999.0
136	Foxe Basin	57.1	56.3	56.3	57.7	56.1	54.7	55.2	56.6	57.1	56.5	55.0	54.8	53.0	53.8	54.3	51.0	49.6	48.4	47.7	46.9	47.3	48.2	48.9	47.1	46.3	45.4	44.7	46.2	44.8	47.0	-9999.0
138	Baffin Bay	120.3	115.0	111.1	108.2	104.7	102.0	98.8	95.9	92.8	89.8	87.2	84.8	82.0	78.7	75.6	72.4	69.9	67.8	65.9	64.0	61.1	59.6	58.2	54.4	50.7	47.8	46.1	44.3	41.5	38.9	-9999.0
139	South Greenland	114.8	112.2	110.8	108.6	107.3	105.3	103.6	101.1	99.9	98.3	97.2	96.1	93.9	92.6	87.0	85.3	86.8	85.1	82.6	79.7	79.2	77.0	74.0	71.0	70.0	67.6	66.0	64.9	63.0	61.4	-9999.0
140	Greenland Sea	129.1	124.6	118.9	115.1	112.7	109.4	106.3	102.6	99.9	96.5	92.5	89.9	86.0	82.5	79.9	77.3	75.4	73.1	69.6	66.9	64.1	61.2	58.5	56.2	53.8	50.6	47.7	45.8	44.4	41.4	-9999.0
142	Norwegian Sea	50.0	48.9	48.9	48.4	48.3	47.5	46.8	46.2	45.4	44.6	44.3	44.0	43.4	42.6	42.4	41.9	41.5	40.5	39.7	39.2	39.4	38.4	37.4	36.6	36.4	36.2	35.6	34.8	34.3	34.3	-9999.0
144	Barents Sea	55.7	55.2	54.8	54.4	53.8	53.2	52.5	51.7	50.9	50.5	49.5	48.8	48.2	47.7	47.3	46.6	46.2	45.9	45.1	44.5	44.2	43.6	43.0	42.7	41.7	41.4	40.8	41.6	39.3	37.5	-9999.0
146	Kara Sea	62.8	62.2	61.6	60.8	60.2	59.7	59.2	58.8	58.1	57.7	57.8	57.1	56.1	56.4	56.0	55.2	54.7	54.0	53.0	52.4	52.3	53.5	52.6	51.6	50.9	50.2	49.5	50.1	51.0	52.2	-9999.0
148	Laptev Sea	61.2	60.3	59.9	58.7	57.9	57.2	56.7	56.0	55.5	54.8	54.9	54.2	53.1	53.0	53.0	52.9	51.7	51.4	50.8	50.9	52.0	51.2	49.2	48.0	47.2	46.7	45.7	45.5	47.4	47.4	-9999.0
150	East Siberian Sea	64.1	62.6	61.8	61.2	60.4	59.4	59.2	60.3	59.6	56.4	55.4	54.5	53.8	52.7	51.9	51.3	51.0	50.4	49.2	48.1	48.3	48.9	47.5	46.3	45.3	44.5	44.2	44.6	46.1	48.5	-9999.0
152	Gulf of Alaska	70.3	69.6	68.8	67.7	66.8	66.5	65.9	65.1	63.7	62.8	61.2	60.3	60.0	60.5	60.2	58.9	58.1	56.9	56.8	57.2	61.4	60.6	57.0	56.1	55.5	54.8	54.7	56.2	54.3	54.5	-9999.0
154	Southeast Bering Sea	58.4	57.8	56.8	56.2	55.8	55.5	54.6	53.4	53.1	52.8	51.9	51.2	50.6	50.8	50.3	49.9	49.4	48.8	48.6	48.8	48.7	47.6	46.9	46.3	45.3	45.0	44.5	43.4	42.8	42.7	-9999.0