3 Second DEM Datasets now available

Map Monkey · Post by **Map Monkey** » 31 July 04 9:47 pm

Hi,

After recent discussions on this forum..........

For those using Ozi3D, the 3 second dataset from NASA is now available at ftp://edcsgs9.cr.usgs.gov/pub/data/srtm/Australia/

Whilst it seems they will be updating the data further in the next couple of months, expect little if no change in most areas.....

Enjoy

Andrew

embi · Post by **embi** » 31 July 04 11:08 pm

who has the ways and means of downloading all this though??

I'd love to get my hands on that but with dial up it aint going to happen.

There is a total of 1072 files and a total of 904Mb.

UPDATE....I downloaded one of the files and i cant get it to work...Doesnt seem to recognise the data. I am using the 9sec data and all is good with that

Map Monkey · Post by **Map Monkey** » 31 July 04 11:40 pm

Hi embi,

just download what you need.......

,

Turn off your 9 second data under the configuration for ozi3d to make sure you are only loading the 3 second data (for fault finding).,

Make sure the data is in the same folder that it has been referred to (generally ..ozi/globe),

Make sure you have downloaded the correct file......

,

from http://edcsgs9.cr.usgs.gov/pub/data/srtm/Documentation/
in QuickStart.txt:
"File names refer to the latitude and longitude of the lower left corner
of
the tile - e.g. N37W105 has its lower left corner at 37 degrees north
latitude and 105 degrees west longitude.",

For AU, if you want S40 E144 you would download S41E144.hgt.zip.....

AGSMKY

embi · Post by **embi** » 31 July 04 11:59 pm

I had turmed off the 9sec data but had downloaded the wrong file..

..thanks for the help.

Map Monkey · Post by **Map Monkey** » 01 August 04 12:01 am

thought so.......

AGSMKY

Webguy · Post by **Webguy** » 01 August 04 12:33 am

Anyone wanna give me a dummies quick guide to using this thing? I decided to try the katoomba map, selected a small section. Bottom left co-ords are 33.37 and 150.15 so grabbed all the files off that site for around that area. Extracted them to a new folder, pointed all sorts of different data settings to that folder.

I tell it to make a 3D map, it says no height data available or something.

Any pointers, just wanna see what this can do.

embi · Post by **embi** » 01 August 04 12:41 am

OZI website wrote:In the southern hemisphere, the file "S17E142.hgt" covers the region 16-17 deg South and 142-143 deg East.

riblit · Post by **riblit** » 01 August 04 1:06 am

Webguy wrote:Anyone wanna give me a dummies quick guide to using this thing? I decided to try the katoomba map, selected a small section. Bottom left co-ords are 33.37 and 150.15 so grabbed all the files off that site for around that area. Extracted them to a new folder, pointed all sorts of different data settings to that folder.

I tell it to make a 3D map, it says no height data available or something.

Any pointers, just wanna see what this can do.

Same thing here until I downloaded the correct file. look carefully at the latitude, the filename is the end of the coverage. Katoomba needs S32...<p>

They go in the Globe (ArcView) folder according to the oziexplorer website.

Map Monkey · Post by **Map Monkey** » 01 August 04 1:12 am

thought so.......

AGSMKY

Team Piggy · Post by **Team Piggy** » 01 August 04 11:01 am

Just downloaded everything from S30 thru to S 44, can send it over on a CD if you want it Embi.

riblit · Post by **riblit** » 01 August 04 11:04 am

Team Piggy wrote:Just downloaded everything from S30 thru to S 44, can send it over on a CD if you want it Embi.

A touch late piggies - I have downloaded all of Aust and some Eurasia.
Its en route to embi on DVD.

Team Piggy · Post by **Team Piggy** » 01 August 04 11:13 am

Such is life...
Guess I'll go back back to wuffling truffles..

dcr · Post by **dcr** » 01 August 04 12:14 pm

I think we all had similar ideas.
It could be possible that someone looks at the FTP logs for last night and thinks "what the ... those damn Aussies!"

team unicycle · Post by **team unicycle** » 01 August 04 8:46 pm

So it was you lot slowing my download

Team Piggy · Post by **Team Piggy** » 01 August 04 8:59 pm

haha Prob me Uni ! I just D'loaded the whole lot.