TY - GEN
AU - Mike Cullen
BT - ECMWF Technical Memoranda
CY - Shinfield Park, Reading
DA - 01/2002
DO - 10.21957/9n5pw7izh
LA - eng
M1 - 358
PB - ECMWF
PP - Shinfield Park, Reading
PY - 2002
EP - 21
T2 - ECMWF Technical Memoranda
TI - Use of potential vorticity as a control variable within a 4D variational data assimilation system
UR - https://www.ecmwf.int/node/8833
ER -