Single-precision in the tangent-linear and adjoint models of incremental 4D-VAr
The use of single-precision arithmetic in ECMWF’s forecasting model gave a 40% reduction in wall-clock time over double-precision, with no decrease in forecast quality. However, using reduced-precision in 4D-Var data assimilation is relatively unexplored and there are potential issues with using sin...
| المؤلفون الرئيسيون: | , , , |
|---|---|
| التنسيق: | Journal article |
| اللغة: | English |
| منشور في: |
American Meteorological Society
2020
|