SPATIAL COVERAGE OF THE ADL CATALOG

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There are 2,339,675 items in the ADL Catalog as of March 5, 2000.

The spatial coverage of the items is graphically shown by the tiled map below. Each tile represents a 10° × 10° area of the Earth's surface. The color of a tile reflects the number of items that overlap that tile; the lighter the color, the more items that overlap. The legend to the right of the map shows the correspondence between color and number of items.

The following table shows the spatial coverage numerically. Each cell in the table represents a 20° × 20° area of the Earth's surface centered at the indicated latitude and longitude. The value in a cell is the number of items that overlap that cell.

		Longitude
		-170	-150	-130	-110	-90	-70	-50	-30	-10	10	30	50	70	90	110	130	150	170
Latitude	80	20345	42165	31796	20417	7877	1523	2127	2853	2876	3200	2832	938	1137	1936	2645	2796	5335	9123
	60	97276	142743	78306	70317	44075	36421	22473	1679	6908	21339	35742	31559	25976	19025	10822	8321	6469	19050
	40	507	927	170712	399230	318264	194420	25996	103	6835	17790	28361	42622	48457	32489	36334	33024	8196	208
	20	737	14099	347	34519	90621	26154	258	316	11966	19751	15592	19119	31349	30128	24463	8581	474	95
	0	169	149	55	100	1461	10165	7892	1491	2370	7256	15215	7266	1714	4228	12602	7967	1392	320
	-20	1121	85	64	72	124	11371	17814	1256	73	4212	13802	2555	109	125	5098	13104	9319	559
	-40	95	65	54	55	65	12814	7514	58	120	771	1764	53	61	55	2982	5183	7440	2153
	-60	723	500	502	678	494	1596	780	408	520	901	1436	1514	1243	1940	1794	1673	1212	750
	-80	838	1260	1523	1642	1865	2093	1582	1859	3422	5358	6089	5053	4847	5307	5875	5457	4792	2383