National Elevation Dataset

Metadata:

Identification_Information
Spatial_Data_Organization_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS), EROS Data Center

Publication_Date: 1999

Title: National Elevation Dataset

Edition: 1

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey

Online_Linkage: <http://gisdata.usgs.net/ned/>

Description:

Abstract:

The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to the NAD83 datum, edge-match, and fill slivers of missing data at quadrangle seams. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives. The specifications for the NED 1 arc second and 1/3 arc second data are: Geographic coordinate system Horizontal datum of NAD83, except for AK which is NAD27 Vertical datum of NAVD88, except for AK which is NAVD29 Z units of meters

Purpose:

Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications.

Supplemental_Information:

(Source DEM information)

QUADNAME	RESOLUTION	ULLAT	ULLON	LRLAT	LRLON	HDATUM	ZMIN	ZMAX	ZMEAN	ZSIGMA	PMETHOD	QUADDATE
hollywood_MS	30	34.75	-90.375	34.625	-90.25	27	51.875	61.27500152588	56.84469985962	1.29776000977	5	19991018
arkabutla_west_MS	30	34.75	-90.25	34.625	-90.125	27	49.08300018311	103.88300323486	66.81600189209	11.83409976959	5	19991018
arkabutla_east_MS	30	34.75	-90.125	34.625	-90	27	58.30099868774	107.60099792481	79.5804977417	10.96549987793	5	19991018
coldwater_MS	30	34.75	-90	34.625	-89.875	27	64.71900177002	117.41899871826	83.41750335693	12.28999996185	5	19990908
independence_MS	30	34.75	-89.875	34.625	-89.75	27	75.02799987793	145.12800598145	99.13310241699	11.37889957428	5	19990908
wyatte_MS	30	34.75	-89.75	34.625	-89.625	27	92.53800201416	170.93800354004	126.12699890137	14.20040035248	5	19990908
marianna_MS	30	34.75	-89.625	34.625	-89.5	27	98.047996521	198.04800415039	145.03199768066	15.70559978485	5	19990325
waterford_MS	10	34.75	-89.5	34.625	-89.375	27	95.04699707031	198.34700012207	140.42799377441	20.01119995117	5	20030201
potts_camp_MS	10	34.75	-89.375	34.625	-89.25	27	90.0299987793	189.83000183106	124.42600250244	18.05559921265	5	20030201
chilli_creek_MS	10	34.75	-89.25	34.625	-89.125	27	98.02700042725	196.02699279785	138.44200134277	18.54630088806	5	20030201
blue_mountain_MS	10	34.75	-89.125	34.625	-89	27	107.43299865723	197.93299865723	141.82099914551	16.92600059509	5	20030201
ripley_MS	30	34.75	-89	34.625	-88.875	27	122.03600311279	197.0359954834	153.74099731445	12.77989959717	5	19990325
dumas_MS	30	34.75	-88.875	34.625	-88.75	27	134.04100036621	229.04100036621	170.87100219727	17.18129920959	5	19990325
jumpertown_MS	30	34.75	-88.75	34.625	-88.625	27	109.6370010376	240.6369934082	154.18800354004	19.08480072021	5	20000202
walnut_lake_MS	30	34.625	-90.375	34.5	-90.25	27	45.86500167847	58.56499862671	54.1197013855	1.56551003456	5	19991018
crenshaw_north_MS	30	34.625	-90.25	34.5	-90.125	27	48.97700119019	119.577003479	72.20819854736	18.57369995117	5	19991018
longtown_MS	30	34.625	-90.125	34.5	-90	27	62.09799957275	117.19799804688	95.09609985352	10.4388999939	5	19991018
senatobia_MS	30	34.625	-90	34.5	-89.875	27	69.81099700928	114.21099853516	94.74050140381	9.32835960388	5	19990908
looxahoma_MS	30	34.625	-89.875	34.5	-89.75	27	83.22100067139	154.22099304199	111.42800140381	12.47150039673	5	19990908
tyro_MS	30	34.625	-89.75	34.5	-89.625	27	81.22799682617	181.22799682617	122.40399932861	18.98399925232	5	19990908
laws_hill_MS	30	34.625	-89.625	34.5	-89.5	27	79.0240020752	186.0240020752	106.7200012207	23.54089927673	5	19990325
malone_MS	10	34.625	-89.5	34.5	-89.375	27	82.01999664307	153.7200012207	103.29100036621	17.36680030823	5	20030201
bethlehem_MS	10	34.625	-89.375	34.5	-89.25	27	82.01599884033	173.01600646973	106.6070022583	18.34819984436	5	20030201
hickory_flat_MS	10	34.625	-89.25	34.5	-89.125	27	86.61799621582	184.71800231934	126.47499847412	16.7576007843	5	20030201
myrtle_MS	10	34.625	-89.125	34.5	-89	27	99.12300109863	182.02299499512	124.00900268555	12.77579975128	5	20030201
keownville_MS	30	34.625	-89	34.5	-88.875	27	100.03399658203	190.03399658203	131.45100402832	15.00549983978	5	19990325
pleasant_ridge_MS	30	34.625	-88.875	34.5	-88.75	27	116.04000091553	226.03999328613	162.14799499512	23.83839988709	2	19990325
baldwyn_MS	30	34.625	-88.75	34.5	-88.625	27	102.24500274658	242.3450012207	132.57600402832	22.19680023193	5	20000202
falcon_MS	30	34.5	-90.375	34.375	-90.25	27	44.46530151367	57.57189941406	50.978099823	1.2418500185	5	19990325
crenshaw_south_MS	30	34.5	-90.25	34.375	-90.125	27	46.60599899292	117.31999969482	57.31399917603	14.36240005493	5	19990325
pleasant_grove_MS	30	34.5	-90.125	34.375	-90	27	48.75859832764	119.47299957275	88.34790039063	17.25690078735	5	19990325
sardis_MS	30	34.5	-90	34.375	-89.875	27	60.30099868774	120.60099792481	97.52839660645	11.1219997406	5	19990908
sardis_dam_MS	30	34.5	-89.875	34.375	-89.75	27	57.60400009155	137.00399780273	91.78350067139	16.80660057068	5	19990908
coles_point_MS	30	34.5	-89.75	34.375	-89.625	27	79.70899963379	147.20899963379	92.58020019531	12.74440002441	5	19990908
oxford_north_MS	30	34.5	-89.625	34.375	-89.5	27	82.01899719238	179.01899719238	111.83999633789	18.55030059814	5	19990325
bagley_lake_MS	10	34.5	-89.5	34.375	-89.375	27	88.33100128174	186.03100585938	136.89399719238	18.43029975891	5	20030201
puskus_lake_MS	10	34.5	-89.375	34.375	-89.25	27	87.62699890137	184.12699890137	119.1129989624	17.28300094604	5	20030201
etta_MS	10	34.5	-89.25	34.375	-89.125	27	86.62699890137	166.62699890137	107.12300109863	15.27470016479	5	20030201
new_albany_west_MS	30	34.5	-89.125	34.375	-89	27	91.17230224609	146.34199523926	107.62899780273	9.59904003143	5	19990325
new_albany_east_MS	30	34.5	-89	34.375	-88.875	27	104.04100036621	198.04100036621	138.41999816895	14.79889965057	5	19990325
ellistown_MS	30	34.5	-88.875	34.375	-88.75	27	82.03600311279	156.0359954834	111.74600219727	13.61429977417	2	19990325
guntown_MS	30	34.5	-88.75	34.375	-88.625	27	88.35399627686	149.05400085449	111.64600372315	10.19029998779	5	20001201
marks_MS	30	34.375	-90.375	34.25	-90.25	27	42.93930053711	55.43629837036	48.99890136719	1.22263002396	5	19990325
curtis_station_MS	30	34.375	-90.25	34.25	-90.125	27	41.41830062866	51.78160095215	48.33589935303	1.05095994473	3	19990325
asa_MS	30	34.375	-90.125	34.25	-90	27	46.00239944458	110.01100158691	60.44409942627	13.21640014648	3	19990325
batesville_MS	30	34.375	-90	34.25	-89.875	27	52.29100036621	113.99099731445	81.8650970459	15.99779987335	5	19990908
sardis_se_MS	30	34.375	-89.875	34.25	-89.75	27	64.49900054932	149.49899291992	101.1070022583	16.03079986572	5	19990908
splinter_MS	30	34.375	-89.75	34.25	-89.625	27	82.0120010376	183.21200561523	115.21499633789	14.68260002136	5	19990908
oxford_south_MS	30	34.375	-89.625	34.25	-89.5	27	82.01899719238	189.01899719238	118.70600128174	18.38249969482	5	19990325
yocona_MS	10	34.375	-89.5	34.25	-89.375	27	83.83000183105	192.83000183106	122.02899932861	19.43440055847	5	20030201
denmark_MS	10	34.375	-89.375	34.25	-89.25	27	98.63800048828	190.03799438477	128.90400695801	17.51420021057	5	20030201
thaxton_MS	10	34.375	-89.25	34.25	-89.125	27	97.54299926758	172.44299316406	124.37999725342	14.59459972382	5	20030201
northwest_pontotoc_MS	30	34.375	-89.125	34.25	-89	27	95.7574005127	151.84100341797	117.58300018311	10.27099990845	5	19990325
northeast_pontotoc_MS	30	34.375	-89	34.25	-88.875	27	98.05200195313	174.05200195313	137.4700012207	13.05819988251	5	19990325
sherman_MS	30	34.375	-88.875	34.25	-88.75	27	77.04000091553	160.03999328613	105.6190032959	14.00689983368	2	19990325
tupelo_MS	30	34.375	-88.75	34.25	-88.625	27	75.84999847412	146.35000610352	97.3650970459	13.30900001526	5	20001201
lambert_MS	30	34.25	-90.375	34.125	-90.25	27	43.54990005493	51.47480010986	47.09820175171	1.0694899559	5	19990325
crowder_MS	30	34.25	-90.25	34.125	-90.125	27	42.93930053711	54.521900177	46.77989959717	1.29118001461	5	19990325
tocowa_MS	30	34.25	-90.125	34.125	-90	27	45.08290100098	117.01699829102	68.3463973999	19.00099945068	5	19990325
courtland_MS	30	34.25	-90	34.125	-89.875	27	54.98300170898	116.98300170898	81.44239807129	13.96259975433	5	19990325
shuford_MS	30	34.25	-89.875	34.125	-89.75	27	72.99500274658	147.99499511719	95.33740234375	15.64140033722	5	19990325
water_valley_west_MS	30	34.25	-89.75	34.125	-89.625	27	76.00099945068	145.00100708008	92.43090057373	12.8922996521	5	19990325
water_valley_east_MS	30	34.25	-89.625	34.125	-89.5	27	79.02200317383	175.02200317383	115.19999694824	17.79969978333	5	19990325
paris_MS	30	34.25	-89.5	34.125	-89.375	27	99.09719848633	180.47999572754	131.22599792481	16.16060066223	5	19990325
tula_MS	30	34.25	-89.375	34.125	-89.25	27	102.04699707031	183.04699707031	129.43899536133	15.20059967041	5	19990325
randolph_MS	30	34.25	-89.25	34.125	-89.125	27	103.05100250244	174.05099487305	128.9409942627	12.31709957123	5	19990325
southwest_pontotoc_MS	30	34.25	-89.125	34.125	-89	27	96.98159790039	159.77099609375	120.21600341797	11.09000015259	5	19990325
southeast_pontotoc_MS	30	34.25	-89	34.125	-88.875	27	86.01159667969	177.14799499512	122.69699859619	17.46859931946	5	19990325
bissell_MS	30	34.25	-88.875	34.125	-88.75	27	73.20690155029	152.15100097656	95.99819946289	11.9329996109	5	19990325
verona_MS	30	34.25	-88.75	34.125	-88.625	27	66.50420379639	127.16000366211	85.06629943848	10.20829963684	5	19990325
vance_MS	30	34.125	-90.375	34	-90.25	27	39.58750152588	48.42679977417	45.45370101929	0.98322600126	5	19990325
fishhook_lake_MS	30	34.125	-90.25	34	-90.125	27	41.10250091553	52.98979949951	44.53570175171	0.78755497932	5	19990325
charleston_MS	30	34.125	-90.125	34	-90	27	41.72010040283	118.22599792481	71.59970092773	22.19009971619	5	19990325
oakland_MS	10	34.125	-90	34	-89.875	27	61.17499923706	129.375	95.76180267334	11.08320045471	5	20030201
coker_lake_MS	10	34.125	-89.875	34	-89.75	27	71.09300231934	149.79299926758	104.57399749756	14.72169971466	5	20030201
velma_MS	30	34.125	-89.75	34	-89.625	27	73.00499725342	156.00500488281	103.70600128174	13.45390033722	5	19990325
pine_valley_MS	30	34.125	-89.625	34	-89.5	27	76.01999664307	166.02000427246	114.83799743652	16.25709915161	5	19990325
banner_MS	30	34.125	-89.5	34	-89.375	27	78.97619628906	174.07499694824	112.58699798584	18.00110054016	5	19990325
sarepta_MS	30	34.125	-89.375	34	-89.25	27	72.03700256348	179.03700256348	105.4700012207	15.1482000351	2	19990325
robbs_MS	30	34.125	-89.25	34	-89.125	27	75.04199981689	154.04200744629	102.32399749756	12.27120018005	2	19990325
houlka_MS	30	34.125	-89.125	34	-89	27	87.83550262451	140.2619934082	107.51599884033	10.02820014954	5	19990325
troy_MS	30	34.125	-89	34	-88.875	27	88.06199645996	167.06199645996	125.78800201416	15.27470016479	5	19990325
troy_se_MS	30	34.125	-88.875	34	-88.75	27	73.21790313721	152.46699523926	101.71199798584	11.0031003952	5	19990325
shannon_MS	30	34.125	-88.75	34	-88.625	27	59.19189834595	108.26499938965	82.20739746094	11.27270030975	5	19990325
webb_MS	30	34	-90.375	33.875	-90.25	27	38.6800994873	49.04339981079	44.19630050659	1.47383999825	5	19990325
tippo_MS	30	34	-90.25	33.875	-90.125	27	38.34130096436	49.31420135498	43.64820098877	1.06147003174	5	19990325
paynes_MS	30	34	-90.125	33.875	-90	27	40.95000076294	117.94999694824	68.00109863281	21.76880073547	5	19990325
tillatoba_MS	10	34	-90	33.875	-89.875	27	59.66999816895	131.07000732422	93.02069854736	13.60669994354	5	20030201
scobey_MS	10	34	-89.875	33.875	-89.75	27	63.79299926758	147.99299621582	99.43769836426	14.5481004715	5	20030201
coffeeville_MS	10	34	-89.75	33.875	-89.625	27	62.20199966431	125.00199890137	79.70120239258	13.54010009766	5	20030201
benwood_MS	30	34	-89.625	33.875	-89.5	27	62.01499938965	150.01499938965	93.85520172119	19.05450057983	5	19990325
skuna_MS	30	34	-89.5	33.875	-89.375	27	68.91059875488	182.29800415039	94.05210113525	17.48299980164	5	19990325
bruce_MS	30	34	-89.375	33.875	-89.25	27	60.04000091553	168.03999328613	101.19100189209	14.85709953308	2	19990325
vardaman_MS	30	34	-89.25	33.875	-89.125	27	75.047996521	160.04800415039	106.00299835205	14.38160037994	2	19990325
houston_west_MS	30	34	-89.125	33.875	-89	27	83.87300109863	123.80200195313	99.19609832764	6.28206014633	5	19990325
houston_east_MS	30	34	-89	33.875	-88.875	27	81.44460296631	167.09399414063	114.95500183106	16.82279968262	5	19990325
buena_vista_MS	30	34	-88.875	33.875	-88.75	27	73.20989990234	149.71600341797	92.92340087891	10.17969989777	5	19990325
egypt_MS	30	34	-88.75	33.875	-88.625	27	63.44919967651	107.34100341797	85.90720367432	7.79791021347	5	19990325
glendora_MS	30	33.875	-90.375	33.75	-90.25	27	36.85319900513	52.70299911499	42.52970123291	1.2745000124	5	19990325
philipp_MS	30	33.875	-90.25	33.75	-90.125	27	36.79420089722	50.81520080566	41.72629928589	1.2738699913	5	19990325
cascilla_MS	30	33.875	-90.125	33.75	-90	27	39.93899917603	122.93900299072	55.86589813232	23.3341999054	5	19990325
holcomb_MS	30	33.875	-90	33.75	-89.875	27	43.96799850464	121.96800231934	72.90470123291	18.42740058899	5	19990325
grenada_MS	30	33.875	-89.875	33.75	-89.75	27	46.99300003052	135.99299621582	68.23100280762	13.70240020752	5	19990330
kincaid_MS	30	33.875	-89.75	33.75	-89.625	27	62.0060005188	148.0059967041	78.12100219727	16.42530059814	5	19990330
gore_springs_MS	30	33.875	-89.625	33.75	-89.5	27	62.01599884033	131.01600646973	79.68479919434	14.12699985504	5	19990330
big_creek_MS	30	33.875	-89.5	33.75	-89.375	27	66.42700195313	143.12699890137	80.93250274658	11.84580039978	5	19990908
calhoun_city_MS	30	33.875	-89.375	33.75	-89.25	27	68.1370010376	137.53700256348	86.14399719238	11.47739982605	5	19990908
atlanta_MS	30	33.875	-89.25	33.75	-89.125	27	68.04900360107	159.04899597168	100.07599639893	15.80620002747	2	19990330
woodland_MS	30	33.875	-89.125	33.75	-89	27	82.35600280762	180.19799804688	105.50099945068	14.80760002136	5	19990330
sparta_MS	30	33.875	-89	33.75	-88.875	27	71.38210296631	159.77499389648	94.73459625244	13.34379959106	5	19990325
trebloc_MS	30	33.875	-88.875	33.75	-88.75	27	64.67440032959	145.14300537109	80.93769836426	9.74781990051	5	19990325
prairie_MS	30	33.875	-88.75	33.75	-88.625	27	62.22900009155	106.42500305176	81.1508026123	8.54827022552	5	19990325
schlater_MS	30	33.75	-90.375	33.625	-90.25	27	34.09199905396	46.5890007019	39.88619995117	1.32325994968	5	19990325
money_MS	30	33.75	-90.25	33.625	-90.125	27	34.665599823	48.38180160522	39.84540176392	1.26645004749	5	19990325
avalon_MS	30	33.75	-90.125	33.625	-90	27	37.93799972534	114.93800354004	53.83739852905	18.56970024109	5	19990325
jefferson_MS	30	33.75	-90	33.625	-89.875	27	44.9700012207	128.9700012207	85.78179931641	13.49390029907	2	19990325
tie_plant_MS	30	33.75	-89.875	33.625	-89.75	27	49.99499893188	149.99499511719	92.96710205078	18.3050994873	2	19990330
duck_hill_MS	30	33.75	-89.75	33.625	-89.625	27	57.00699996948	159.00700378418	88.89730072021	13.59770011902	2	19990330
sweatman_MS	30	33.75	-89.625	33.625	-89.5	27	67.02600097656	164.02600097656	102.88400268555	14.58339977264	2	19990330
cadaretta_MS	30	33.75	-89.5	33.625	-89.375	27	60.04000091553	195.03999328613	104.83200073242	22.49710083008	2	19990330
bellefontaine_MS	30	33.75	-89.375	33.625	-89.25	27	75.05400085449	188.05400085449	117.82800292969	19.1702003479	2	19990330
hohenlinden_MS	30	33.75	-89.25	33.625	-89.125	27	85.06600189209	183.0659942627	130.84599304199	19.3824005127	2	19990330
mantee_MS	30	33.75	-89.125	33.625	-89	27	78.06300354004	173.26300048828	111.17700195313	21.40340042114	5	19990330
montpelier_MS	30	33.75	-89	33.625	-88.875	27	59.04600143433	140.04600524902	86.56430053711	12.65569972992	2	19990325
palo_alto_MS	30	33.75	-88.875	33.625	-88.75	27	48.04199981689	146.04200744629	82.15509796143	15.9767999649	2	19990325
muldon_MS	30	33.75	-88.75	33.625	-88.625	27	47.04100036621	100.04100036621	72.60510253906	10.6861000061	2	19990325
tillatoba_MS	10	34	-90	33.875	-89.87999725342	27	59.66999816895	131.07000732422	93.02069854736	13.60669994354	5	20030201

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990201
Ending_Date: Unknown

Currentness_Reference: publication date

Status:

Progress: In work
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate:-90.29822853
East_Bounding_Coordinate:-88.73487367
North_Bounding_Coordinate:34.64254844
South_Bounding_Coordinate:33.72627755

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD Parameter Keywords
Theme_Keyword: EARTH SCIENCE
Theme_Keyword: LAND SURFACE
Theme_Keyword: TOPOGRAPHY
Theme_Keyword: LANDFORMS
Theme_Keyword: TERRAIN ELEVATION
Theme_Keyword: 1-DEGREE DEM
Theme_Keyword: 2-ARC-SECOND DEM
Theme_Keyword: 7.5-MINUTE DEM
Theme_Keyword: CARTOGRAPHY
Theme_Keyword: DEM
Theme_Keyword: DIGITAL ELEVATION MODEL
Theme_Keyword: DIGITAL MAPPING
Theme_Keyword: EDC
Theme_Keyword: EROS
Theme_Keyword: GEODATA
Theme_Keyword: GIS
Theme_Keyword: MAPPING
Theme_Keyword: RASTER
Theme_Keyword: USGS

Place:

Place_Keyword_Thesaurus: GCMD Location Keywords
Place_Keyword: NORTH AMERICA
Place_Keyword: UNITED STATES
Place_Keyword: UNITED STATES OF AMERICA

Access_Constraints: None

Use_Constraints:

None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Customer Services Representative
Contact_Organization: EROS Data Center

Contact_Address:

Address_Type: mailing and physical address
Address:: U.S. Geological Survey EROS Data Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA

Contact_Voice_Telephone: 605-594-6151

Contact_Facsimile_Telephone: 605-594-6589

Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov

Resource_Description: National Elevation Dataset (NED)

Distribution_Liability:

Although these data have been processed successfully on a computer system at the U.S. Geological Survey, EROS Data Center, no warranty expressed or implied is made by either regarding the utility of the data on any system, nor shall the act of distribution constitute any such warranty. The USGS will warrant the delivery of this product in computer-readable format and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustments of credit must be made within 90 days from the date of this shipment from the ordering site.

Metadata_Reference_Information:

Metadata_Date: 19990211

Metadata_Contact: