VMAP1 Downloads

This pages tells you where to download and how to install the VMAP1 data sets.

VMAP1 data is divided into a rather complex global mosaic of 234 geographic zones, with each available on a single CD-ROM. However, as mentioned in the introduction page, only 57 of these zones are currently available for public download. In an effort to be helpful, the main NIMA website has a nice map interface and plenty of options, but if you just want to rush in and download the VMAP1 data, it can be rather confusing to actually locate the files that you want. To simplify this, I have provided the links that take you straight to the files - you can find them below the map.

This map is a new one of mine, in an effort to respond to requests for information about the currently available datsets for VMAP1. It shows all the VMAP1 dataset coverage areas: the ones that are available online are shown in black. A file name such as 'v1007.tar.gz' can be decoded as follows: VMAP1, file 007.

v1001.tar.gz (126.174412 Mbytes)
Latitude = (84 to 65) Longitude = (-138.75 to -180)
v1007.tar.gz (71.611457 Mbytes)
Latitude = (84 to 60) Longitude = (72 to 48)
v1009.tar.gz (116.783263 Mbytes)
Latitude = (84 to 60) Longitude = (117 to 93)
v1012.tar.gz (144.46245 Mbytes)
Latitude = (84 to 40) Longitude = (172.5 to 141)
v1013.tar.gz (63.225295 Mbytes)
Latitude = (84 to 40) Longitude = (180 to 168.75)
v1029.tar.gz (38.637339 Mbytes)
Latitude = (60 to 54) Longitude = (67.5 to 55.5)
v1030.tar.gz (34.646543 Mbytes)
Latitude = (60 to 54) Longitude = (79.5 to 67.5)
v1031.tar.gz (40.154608 Mbytes)
Latitude = (60 to 54) Longitude = (91.5 to 79.5)
v1032.tar.gz (66.212363 Mbytes)
Latitude = (60 to 54) Longitude = (103.5 to 91.5)
v1033.tar.gz (57.686203 Mbytes)
Latitude = (60 to 54) Longitude = (115.5 to 103.5)
v1035.tar.gz (44.650717 Mbytes)
Latitude = (60 to 54) Longitude = (141 to 127.5)
v1053.tar.gz (23.835471 Mbytes)
Latitude = (54 to 48) Longitude = (60 to 48.75)
v1054.tar.gz (22.28736 Mbytes)
Latitude = (54 to 45) Longitude = (72 to 60)
v1057.tar.gz (108.142205 Mbytes)
Latitude = (54 to 45) Longitude = (109.5 to 95)
v1062.tar.gz (90.448973 Mbytes)
Latitude = (49 to 42) Longitude = (-107.5 to -117.5)
v1063.tar.gz (102.23894 Mbytes)
Latitude = (49 to 42) Longitude = (-97.5 to -107.5)
v1064.tar.gz (78.514997 Mbytes)
Latitude = (48 to 42) Longitude = (-90 to -97.5)
v1070.tar.gz (41.798171 Mbytes)
Latitude = (48 to 40) Longitude = (66.25 to 47.5)
v1077.tar.gz (61.789715 Mbytes)
Latitude = (42 to 30) Longitude = (-120 to -141.25)
v1078.tar.gz (90.595837 Mbytes)
Latitude = (42 to 36) Longitude = (-110 to -120)
v1079.tar.gz (51.002309 Mbytes)
Latitude = (42 to 36) Longitude = (-100 to -110)
v1080.tar.gz (136.653491 Mbytes)
Latitude = (42 to 36) Longitude = (-90 to -100)
v1081.tar.gz (163.459664 Mbytes)
Latitude = (42 to 36) Longitude = (-80 to -90)
v1082.tar.gz (121.843683 Mbytes)
Latitude = (42 to 36) Longitude = (-35 to -80)
v1087.tar.gz (67.033393 Mbytes)
Latitude = (40 to 35) Longitude = (60 to 45)
v1088.tar.gz (20.959979 Mbytes)
Latitude = (40 to 36) Longitude = (69 to 60)
v1096.tar.gz (91.208047 Mbytes)
Latitude = (42 to 20) Longitude = (156.25 to 124)
v1097.tar.gz (65.800189 Mbytes)
Latitude = (36 to 30) Longitude = (-108 to -120)
v1098.tar.gz (97.845627 Mbytes)
Latitude = (36 to 26) Longitude = (-102 to -108)
v1099.tar.gz (120.997611 Mbytes)
Latitude = (36 to 26) Longitude = (-94 to -102)
v1100.tar.gz (105.271041 Mbytes)
Latitude = (36 to 26) Longitude = (-85 to -94)
v1103.tar.gz (34.647176 Mbytes)
Latitude = (38 to 30) Longitude = (6 to 0)
v1108.tar.gz (36.842728 Mbytes)
Latitude = (35 to 30) Longitude = (60 to 51)
v1109.tar.gz (80.358865 Mbytes)
Latitude = (36 to 30) Longitude = (69 to 60)
v1116.tar.gz (74.08631 Mbytes)
Latitude = (30 to 0) Longitude = (-102 to -141)
v1124.tar.gz (22.493606 Mbytes)
Latitude = (30 to 21) Longitude = (18 to 12)
v1125.tar.gz (12.925046 Mbytes)
Latitude = (30 to 21) Longitude = (25 to 18)
v1131.tar.gz (54.623211 Mbytes)
Latitude = (30 to 24) Longitude = (70 to 60)
v1132.tar.gz (57.765008 Mbytes)
Latitude = (30 to 24) Longitude = (79 to 70)
v1138.tar.gz (39.363411 Mbytes)
Latitude = (21 to 12) Longitude = (-12 to -50)
v1145.tar.gz (34.043693 Mbytes)
Latitude = (21 to 10) Longitude = (30 to 25)
v1151.tar.gz (114.736479 Mbytes)
Latitude = (24 to 18) Longitude = (88 to 78)
v1155.tar.gz (107.301976 Mbytes)
Latitude = (15 to 0) Longitude = (-72 to -85)
v1156.tar.gz (50.592811 Mbytes)
Latitude = (15 to 0) Longitude = (-66 to -72)
v1159.tar.gz (88.638762 Mbytes)
Latitude = (12 to 3) Longitude = (-6 to -32)
v1165.tar.gz (20.085262 Mbytes)
Latitude = (10 to 3) Longitude = (30 to 25)
v1174.tar.gz (8.155689 Mbytes)
Latitude = (-40 to -84) Longitude = (180 to -180)
v1175.tar.gz (46.269171 Mbytes)
Latitude = (0 to -9) Longitude = (-72 to -120)
v1177.tar.gz (61.789715 Mbytes)
Latitude = (0 to -9) Longitude = (-56 to -64)
v1178.tar.gz (28.235406 Mbytes)
Latitude = (0 to -9) Longitude = (-48 to -56)
v1179.tar.gz (19.817776 Mbytes)
Latitude = (0 to -9) Longitude = (-40 to -48)
v1180.tar.gz (17.225658 Mbytes)
Latitude = (0 to -18) Longitude = (-32 to -40)
v1194.tar.gz (17.828222 Mbytes)
Latitude = (-9 to -18) Longitude = (-48 to -56)
v1195.tar.gz (30.156829 Mbytes)
Latitude = (-9 to -18) Longitude = (-40 to -48)
v1207.tar.gz (24.397793 Mbytes)
Latitude = (-18 to -27) Longitude = (-13 to -48)
v1208.tar.gz (20.383775 Mbytes)
Latitude = (-15 to -24) Longitude = (18 to -13)
v1222.tar.gz (13.274071 Mbytes)
Latitude = (-27 to -36) Longitude = (-14 to -54)

Installing VMAP1
Once you have downloaded one or more of the files, the next step is to install them on your computer. This is quite a simple procedure if the following steps are followed carefully. The only requirement is a copy of WinZip or a similar program, to un-zip the files. The installation process is completely non-invasive. All it does is to move files to the new location. No changes are made to the Registry or any other System Settings.

The first and most important thing to do is to check your WinZip configuration. Failure to do this will result in the files being corrupted with added bytes. Start WinZip, and go to Options>Configuration>Miscellaneous. Check that the white box next to 'TAR File Smart CR/LF conversion' does NOT have a tick in it. If it does, click to remove it, and click 'OK'.

The installation procedure can now begin. Create a new folder anywhere on your computer called 'VMAP1'. This folder will be the master store for all of your data. The VMAP1 files have their structures carefully defined, and as long as you are using the 'Use folder names' option in WinZip, it will take care of the remaining directory structure. Start the WinZip program, click on 'Open', and browse to the downloaded file(s). Click 'OK' to select it, and allow WinZip to extract the files to a temporary folder - there is no need to know where this is, as it will be deleted automatically after the processing has taken place. The contents of the Zipfile will be shown - this will be a surprisingly large number of files. Click 'Extract', and browse to your newly created 'VMAP1' folder in the 'Extract to' box. Select the 'All Files' and 'Use folder names' options. (The folder-names option is absolutely required for other programs to be able to make sense of the data.) Click 'Extract', and WinZip does the rest for you. If you have multiple files to un-zip, repeat the above procedure, keeping the same folder-name 'VMAP1' in the 'Extract to' box for each one. Close the Winzip program.

VMAP1 Introduction