ok,I got it.May be from Earthexplorer site

It appears that the global 1-arcsecond (30-m) SRTM digital elevation model is now being made publicly available through, for example, the United States Geological Survey's EarthExplorer site (http://earthexplorer.usgs.gov/). Previously the 1-arcsecond-resolution data was only publicly available for the United States.

You could also try version 2 of the 1-arcsecond ASTER Global DEM which is also available through the USGS EarthExplorer site.

https://dds.cr.usgs.gov/srtm/version2_1/SRTM30/

you may use this internet adress. According to the this  page, you choose latitude and longitude that you want to sudy range. for example e;east longitude, n:north latitude, w:west longitude, s:south latitude folders

Parent Directory e020n40/

e020n90/

e020s10/

e060n40/

e060n90/

e060s10/

e100n40/

e100n90/

e100s10/

e140n40/

e140n90/

e140s10/

srtm30_documentation.pdf

srtm30_version_history.pdf

w020n40/

w020n90/

w020s10/

w060n40/

w060n90/

w060s10/

w100n40/

w100n90/

w100s10/

w140n40/

w140n90/

w140s10/

w180n40/

w180n90/

w180s10/

In our lab, we have set up a WMS (Web Map Service) for SRTM.

It can be accessed through a web-address:

http://www.webservice-energy.org/mapserv/srtm?layers=srtm_s0&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Ftiff&SRS=EPSG:4326&BBOX=lon0,lat0,lon1,lat1&width=$nc&height=nl

lon0: min longitude (including the half-size of a pixel)

lon1: max longitude (including the half-size of a pixel)

lat0: min latitude (including the half-size of a pixel)

lat1: max latitude (including the half-size of a pixel)

nl,nc : size of the requested image (limited to 2048x2048)

To get non-resampled value from the WMS, nl and nc should be set in accordance to the bounding box to have a step of longitude and latitude equal to 1/1200 deg (3 arcsec).

You can use this html-based request with your internet browser or with wget.

YOU CAN GO FOLLOWING LINK

http://glcf.umd.edu/data/

http://earthexplorer.usgs.gov/

http://eros.usgs.gov/

As has been said by others also, you should try for Earth explorer and glcf sites for SRTM data. But they come in 90 m resolution for most of the countries while 30 m resolution  DEM comes for some selected countries.

This link maybe useful:https://www.researchgate.net/post/How_can_I_download_SRTM_data_of_30_m_resolution

on earth explorer

Hi

The best way of downloading SRTM and other remote sensing based DEMs is using Open Topography (OT) site. You can find it in following link:

http://www.opentopography.org/

Also, I've prepared a Tutorial that completely show the required steps for downloading DEM via OT.    

Thank you Asghar.

Thank you

You can download it from USGS website

http://earthexplorer.usgs.gov/

or form Open Topography website

http://www.opentopography.org/

Is this 30 meters or 1 sec over whole globe or only over US?

If yes, which tile number from earthexplorer.usgs.gov?

Hello to everyone ? I noticed that files are in binary format (ASCII). How it is possible to open in GIS software? I tried conversion ASCII to DEM but was failed.

please visit this site

https://dwtkns.com/srtm30m/

Earth explorer

If you're lucky enough you will find here : https://vertex.daac.asf.alaska.edu/# 12 Meters DEM, just go for ALOS PALSAR in Dataset if your region is covered you will be able to download it without restrictions thanks to "Alaska Satellite Facility"

It is also possible to do it that way. Open in SNAP an image (Preferably Sentinel-2) which covers your area of interest, right click on the image, add elevation band. Now you have a good choice of different types of DEM (including both SRTM) which can be downloaded and stored as a separate file in the images's folder. Very convenient.

https://earthexplorer.usgs.gov/

The global 1-arcsecond (30-m) SRTM digital elevation model is free and made available publicly a through the United States Geological Survey's EarthExplorer site. please check the link below

(http://earthexplorer.usgs.gov/).

ALOS Global Digital Surface Model :

https://www.eorc.jaxa.jp/ALOS/en/aw3d30/index.htm

SRTM of USGS :

https://earthexplorer.usgs.gov/

you can use this internet adress

https://dds.cr.usgs.gov/srtm/version2_1/SRTM30/

Follow this link:

https://developers.google.com/earth-engine/datasets/catalog/USGS_SRTMGL1_003

or,

https://gisgeography.com/free-global-dem-data-sources/

Simply make an ID in USGS and you can download it from earth explorer.

can be accessed from : http://earthexplorer.usgs.gov

You can accessed the newest NASADEM data from "https://e4ftl01.cr.usgs.gov/MEASURES/NASADEM_HGT.001/".