You can mount remote directory through ssh by using sshfs. Sshfs does not come as a default on Ubuntu, so you need to install it first by using
sudo apt-get install sshfs.
You can then mount the remote directory to your local machine like this
sshfs firstname.lastname@example.org:/remotedir /localdir
Note that the localdir needs to be present before trying to mount the remotedir. In case that the localdir is not empty, sshfs will complain and abort. You can force it to mount in the non empty dir by using nonempty option like this
sshfs -o nonempty email@example.com:/remotedir /localdir
Once you umount the localdir, local files will become visible again.