The Weather Project at Tate Modern

© Olafur Eliasson / photography by Jens Ziehe

The Weather Project is the fourth commission in the Unilever Series which has given us controversial installations by Louise Bourgeois, Juan Muñoz and Anish Kapoor.

This latest installation to dominate the Tate Modern entrance is by Olafur Eliasson.

How much the weatherscape will change over the next six months remains to be seen. Will it look different at night and in the deep winter? Has the artist prepared built-in surprises?

© Olafur Eliasson / photography by Jens Ziehe

One surprise is the vast glass ceiling. This is not as high as it looks if you go up to level five and examine the temporary roof. Indeed half the sun, which you can walk behind, turns out to be a reflection.

The Danish/Icelandic artist may not have imported the fungus and duckweed that featured in his Mediated Motion in Austria but he has brought a promise of its swirling fog.

This, being live, could be the must-go-to successor to David Blaine.

• The Weather Project is at Tate Modern daily until Sunday 21 March.