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World Data Service for Geophysics, Boulder

Discontinued: MARINE GEOPHYSICAL TRACKLINE DATA ON DVD
- Worldwide -
trackline cd icon.

This Product Has Been Discontinued: Data Announcement 2003-MGG-02

The National Geophysical Data Center (NGDC) Marine Trackline Geophysics DVD data set has been discontinued. Data are available for Download via the link above.


TOTAL DIGITAL GEOPHYSICAL DATA HOLDINGS
Geophysical data summary in nautical miles
                      Geophysical Data Summary in nautical miles

Source                             Nav     Bath      Mag     Grav     Seis   ss/ref  dig recs
---------------------------------------------------------------------------------------------
Alabama, U of               3    17765    16811     2481    16958        0        0    152382
Alaska, U of, Fairbanks     2    12785     2598        0     4134        0        0    137627
Argentina Armada            1     2982     2982        0        0        0        0       951
Argentina Hidrografia       4    14357    14357        0        0        0        0      5322
Australia Antarctic CRC     3    21460    21460        0        0        0        0    289409
Australia Bureau Mineral    5    48447    21262    44580     9242        0        0    311481
Australia CSIRO            13    58119    54882        0        0        0        0    422390
Australia RAN Hydrograph    1     1665     1665        0        0        0        0      6382
BGI, Intl Grav Bureau       9    59843    59072        0    59832        0        0     30205
Brazil Hydrografia e Nav   10    43971    43971        0        0        0        0    136090
Calif, U of, San Diego      1     8032     7767     7660     7534        0        0     61953
Calif, U of, Santa Cruz     1     5062     4330        0        0        0        0     48112
Calif, U of/Alabama, U      1     5236     4995        0       66        0        0     56997
Canada Energy Mines Reso    1     1181     1180     1143     1173        0        0     13843
Canada Geological Survey   64   228542   201250    27640        0        0        0    321269
Canada Hydrographic        86   417142   417142        0        0        0        0    423173
China First Inst Oceaog     2    11771    11540     9357     9155        0        0     22494
China Giomineral Agency     1     1136     1136        0        0        0        0      3025
China Guang Zhou Marine     2     7830     7830     5393     7768        0        0      6628
China Marine Enviro Data    2    16685    16685        0        0        0        0     16527
China Ocean Inst Nanhai     1     1767     1767        0        0        0        0      2642
China Ocean Inst Qingdao    1     2853     2853        0        0        0        0     22599
China Ocean Map Qingdao     1     2929     2929        0        0        0        0       863
China S China Sea Bureau    4    23987    23852        0    23983        0        0     10207
China Second Inst Oceano    1     2573     2573        0        0        0        0      3014
Connecticut, U of           4     4533     3893        0     4533        0        0      2916
Cuba Hydrographic Inst      5    33092    33092        0        0        0        0     14952
Defense Mapping Agency     87   372755   371618        0        0        0        0    715712
Earth and Space Research    1     4086     3968        0        0        0        0     52882
Finland Inst Marine Resc    1     6162     5982        0        0        0        0     30496
France CNEXO               96   179086   166003   108589    37054        0        0    778893
France IFREMER            122   404365   341411   262598   244758        0        0   3145329
France LPCM                 1     2591     2591        0        0        0        0      3479
France Lab Physique Ocea    3     7124     7124        0        0        0        0    137269
France ORSTOM              23    71725    69707    51005    28449        0        0    170861
France Physique du Globe    1     9520     9497     8767        0        0        0     23203
France, U Fr Pacifique      1     1482     1358     1375        0        0        0     10422
Germany Alfred Wegener I    6    58915    58401        0        0        0        0   1509510
Germany BSH                12    21181    21030        0        0        0        0    224073
Germany Bio In Helgoland    1     2155      354        0        0        0        0       646
Germany FWG                 1     1326     1326        0        0        0        0      2719
Germany Hydro Inst         26    83194    83194        0        0        0        0     46777
Germany Inst Meereskunde    3     7551     7111        0        0        0        0     68423
Germany Oceanog Data Ctr    6    18367    14891        0        0        0        0     38239
Hamilton College            2     4170     3292      867     3585        0        0     44134
Hawaii, U of              230   818170   777324   428679   477176    10369        0   6176839
India Inst Oceanography    13     8868     8868        0        0        0        0      4740
Japan Chiba U               4     9324     7894     5505        0        0        0     39267
Japan Geological Survey    39   200333   171934   160541   198688        0        0    423033
Japan Hydrographic Dept   194   473261   388644   362180   394950        0        0   1069163
Japan Inst Polar Researc   36   151262   140193        0   119038        0        0    714432
Japan Kobe U               13    14523     9583    14493        0        0        0     19786
Japan Ocean Resch Inst     24   154281   150658        0   141392        0        0    206872
Japan Oceanog Data Centr   18   100180    99156        0        0        0        0     85044
Japan Ryukyus, U of         3     2931     1809      588        0        0        0      3138
Japan Tokyo, U of          26   183662   159988   175287    58458        0        0     99844
Jet Propulsion Lab          1     8471     7035     7044     7973        0        0     67398
Lamont-Doherty Earth Obs  673  2768762  2650098  2149544  1961101     9001        0   7586562
Louisiana State U           1     2202     1901        0        0        0        0     26751
Miami, U of                 1     5205     5130        0        0        0        0     57083
Minerals Mgmt Service      24    86878    43168        0        0    86647        0    680100
NOAA                       11    86650    82393    81268    75059        0        0    146190
NOAA AMOL                   3    22147    21552    21143    17357        0        0     46042
NOAA AOML                   2    29179    28883    28890    25510        0        0     63544
NOAA ESSA                   7    16499    15775    15415     7534        0        0     21900
NOAA National Ocean Serv  362   692443   688183   260567   135123        0        0   2448955
NOAA OAR                   18    33754    33754        0        0        0        0    157801
NOAA PMEL                   1     6031     6031        0        0        0        0      6602
NOAA POL                   22   160663   155225   150157    84768        0        0    146797
Natl Science Foundation    10    35345    31566     6605    17347        0        0    297313
Netherlands Delft U Tech    2     9755     9755        0     9755        0        0     45291
Netherlands Hydrographic    7    21173    18223     7366        0        0        0    151972
New Zealand Geoph Div      42    62290    26344    56160    17306        0        0    250373
New Zealand Navy            9    27511    27511        0        0        0        0    199900
ODP/Texas A and M         111   340858   243318   192131        0        0        0   3242205
Oregon State U             78   191279   175895   128517   129977        0        0    474221
Portugal Inst Hidrografi    8     9158     9158        0        0        0        0      8655
ROAVERRS                    1     4843     4037        0        0        0        0     40673
Rhode Island, U of         41    92909    91805     7164        0        0        0    621875
Rice U                      9    39996    38765      520    14581        0        0    273859
Russia AN SSSR              1     6961     6611        0     6961        0        0      3517
Russia Academy Science      1     4808     4787        0        0        0        0     44102
Russia CMP MSF              3     6557     6557        0        0        0        0      1384
Russia Far East Sci Cntr    1     5403        0     5403        0        0        0     21327
Russia GAISH                1    11021    10952        0    11021        0        0      5204
Russia Geological Inst      4    30523    30523        0        0        0        0    255070
Russia IFZ AN SSSR         10   119433    97554        0   119433        0        0     46945
Russia Marine Geol Geoph    8    35690        0    35690        0        0        0     32628
Russia Physics of Earth     6    63817    58003        0    63817        0        0     37589
Russia Vernadsky Geochem   20   203381   203381        0        0        0        0    288953
S Africa Cape Town, U       5    14957    14557    14772        0        0        0     21779
S Africa Data Cntr Ocean    5    18561    16252    16766        0        0        0     18071
S Africa Geological Surv    2     5737     5329     5014        0        0        0     10320
S Africa Inst Oceanology    1     2272     2257     2259        0        0        0      3506
S Africa Navy Hydrograph    1     8313     8313        0        0        0        0      4802
S Africa Witwatersrand U    5    11477     7525    11153        0        0        0     14664
Scripps Inst Oceanograph  743  2811630  2498086  1792808   494101    32212        0  10449042
Spain Inst Oceanografia     1     3181     3181        0        0        0        0      5301
Tennessee, U of             3    15889    14481        0     2828        0        0    165198
Texas A and M U             8    27109    24204     3932     7621     3322        0    192339
Texas, U Inst Geophysics   83   148397   121782    95399     5394    52906        0    486026
Texas, U of, Austin         2    10333    10292     1452     4005        0        0    101504
UK Bedford Inst Oceanog     7     8596     8596        0        0        0        0      9558
UK Brit Antarctic Survey   44   245498   230266        0        0        0        0   1435499
UK Brit Oceanog Data Ctr    1     4220     4220     4220     4220        0        0     12194
UK Hydrographic Office    329   529780   529049      330     2376        0        0   1980948
UK Inst Oceanog Sciences   63   216582   200148   133871   137169        0        0    926997
UK Nat Enviro Resch Coun   82   279848   258896   113954   103131        0        0   1878601
UK Southampton Oceanog C    1     8190     8190        0        0        0        0     28729
UK/Lamont-Doherty E O       1    19506     1671        0        0        0        0      2147
US Navy                     9    51985    44234    36574        0        0        0     94312
US Navy NORDA              40   116805   110695    83877        0        0        0    487575
US Navy Naval Oceanog     169   684205   617267   251988    78723        0        0   2642838
US Navy Naval Resch Lab    53   173630   171563        0        0        0        0    464465
USGS                        4     9814     7304     3017     2750     5300        0     92848
USGS Marine Geology        11     1870     1870        0        0        0        0    111387
USGS Pacific Marine Geol  226   414789   229971   184197   209877    54072    19749   3399691
USGS Woods Hole            18    45851    38117    33278        0    10297        0    177917
USGS/Canada Geol Survey     1      847      847        0        0      847        0     23263
USSR                       11    60332    42212        0    44846        0        0    106915
USSR VNIIGEOPHIZICS         1    14558    13140        0    14558        0        0      5356
Washington, U of           36   108350   108166        0        0        0        0    546280
Woods Hole Oceanog Inst   232   736784   667738   371075   322617        0        0   2275697
---------------------------------------------------------------------------------------------
Grand Totals             4919 16479786 14923075  7992248  5986765   264973    19749  64343228

Marine Trackline Geophysics DVD Set

This data set contains all of NGDC's digital, marine geophysical trackline data and is updated on a regular basis. The data set consists of one DVD and contains custom menu-driven, GEODAS software developed by NGDC. Included on the DVD disc are "MGD77" Header- and Data- Records from surveys stored in a compacted binary format. The software gives you direct access to over 7 gigabytes of worldwide marine geophysical trackline data including bathymetry, magnetics, gravity, and seismic shot-point navigation. Access programs allow you to SEARCH the data by a combination of the criteria: data type, institution, geographic area, platform, year of survey, survey identifier, or date the survey was added to the system. After specific surveys are selected, the Header and Data records can be uncompacted from the DVD using the provided software and downloaded to the user's hard disk as ASCII files. The software can also produce trackline plots directly on the user's computer screen or as a PostScript® file for printing on a PostScript® printer. The software allows you to search the inventory for analog data which are also available from NGDC.

"MGD77" Format

The MGD77 Exchange Format (PDF) is a character-based exchange format for marine geophysical data. It is intended to be used for the exchange of data between cooperating marine institutions. Each file contains all observations that conveniently constitute a data subset (e.g., a port-to-port survey) and consists of both a Header Record and Data Records. The MGD77 format has been modified to meet Year 2000 compliance.

"MGD77" Data

The entire "MGD77" digital database is included on the DVD set. Surveys found by an Inventory SEARCH can be easily downloaded from the DVD disc to your hard drive. A context sensitive help System and complete format information is included. These data are also now available on-line for free. Use the GEODAS On-line Data Search and Retrieval System to Search and Download data.

"MGD77" Header Record

The Header Record documents both the content and structure of the geophysical data contained within subsequent data records. Documentation that is constant throughout the survey (instrumentation, reference fields, etc.) is found in specific fields of the Header.

"MGD77" Data Records

The Data Records present underway marine geophysical data in a time-correlative manner. Geophysical data (bathymetry, magnetics, and gravity) and seismic information (shot-point identification number) are associated with a corresponding time and position.

Software - GEODAS for MS Windows®

GEODAS Search dialogs

NGDC provides GEODAS (GEOphysical DAta System) software for use with Microsoft Windows® on PCs. This window driven interface simplifies data searches, guides users with an on-line Windows-style help system and supports color postscript plotting capabilities. In addition, interactive search capabilities enable users to select an area of interest by dragging a mouse or defining an area with mouse clicks. "Zooming" capabilities are also supported, with each zoom defining a narrower search pattern. Once the user is satisfied with the search criteria, data can be downloaded from the DVD in several user selectable formats. All search routines are interactive and displayed as windows on a computer screen. This user interface has a high degree of flexibility which is paramount in satisfying a wide variety of user needs.

Additional Software for MS Windows:

  • GEODAS Hydroplot - displays maps of bathymetry, magnetics or gravity data on the PC screen, coloring the data according to their value.
  • GEODAS Coastline Extractor - downloads user selectable portion of coastline into an ASCII file.

FEATURES OF GEODAS Version 5.0.10 User Software

ENHANCED VISUALIZATION PACKAGE
Hydroplot, the visualizaton and interpretation tool for bathymetry, magnetics and gravity data has been upgraded and refined to provide additional features for MS Windows®, providing data editing, profiling and histogram capabilities. MS Windows® users can create shape files from downloaded data, for importing directly into many GIS packages, including ESRI ArcMap.

GEODAS SYSTEM REQUIREMENTS

Windows PC System Requirements:

  • An IBM® PC or compatible with Microsoft® Windows(tm) 95 or newer
  • A DVD drive with full ISO 9660 compatibility
  • A hard disk drive with 9.5 Megabytes available for the GEODAS software
  • Additional disk space will be needed to download ASCII data files from the DVD

Other Data Searchable with GEODAS and Available from NGDC

Analog Seismic Profiling Data

NGDC's marine seismic holdings include single and multichannel reflection data as well as seismic refraction (sonobuoy) data. While the analog data are not on the DVD, digital navigation is available for many of the seismic data sets. Analog data found by an inventory SEARCH can be purchased from NGDC as copies of the original analog records.

Digital Seismic Profiling Data

Seismic Reflection data in SEG-Y format is available for many surveys in the Trackline inventory. This includes virtually all the seismic profiling data from the USGS Branch of Pacific Marine Geology and some surveys from the USGS Branch of Atlantic Marine Geology. These data can be purchased directly from NGDC on a variety of media.

Marine Geology & Geophysics On-Line

GEODAS data and software are available via Internet using a World Wide Web browser. You can SEARCH the inventories, create and view plot files and download the marine geophysics data for free. To try out GEODAS On-Line, set your web browser to the following URL:

search GEODAS online.www.ngdc.noaa.gov/mgg/gdas/gd_sys.html

Additional information on NGDC's marine geological and geophysical data is available at URL: www.ngdc.noaa.gov/mgg/mggd.html.

DATA AVAILABLE

  • Marine Trackline Geophysics DVD DATA SET - Includes DVD disc with access software

  • Marine Geophysics Data Online for free (includes summary and survey documentation listings, plots, and data)

  • Analog Seismic Data (call 303-497-6338 for prices)

    • Single channel (35-mm microfilm)

    • Side-scan Sonar (35-mm microfilm)

    • Lamont Doherty Seismic Profiles - digital scans of 8.5 x 11" negatives as digital files

    • Multichannel (CDP) - (Prices depend on media)