Validation of atmospheric water vapor from several satellite instruments using GPS measurements at Spanish stations under cloud-free conditions

1. Vaquero-Martínez, J.
2. Antón, M.
3. De Galisteo, J.P.O.
4. Cachorro, V.E.
5. Zapatero, P.Á.
6. Román, R.
7. Loyola, D.
8. Costa, M.J.
9. Wang, H.
10. Abad, G.G.
11. Noël, S.