1 / 24

BIASES IN NSIPP SIMULATIONS

BIASES IN NSIPP SIMULATIONS. COMPARE AMIP AND COUPLED RUNS WITH SAME ATMOSPHERIC MODEL CLIMATOLOGY– TROPICAL BIASES INTERANNUAL VARIABILITY SENSITIVITY Credits: Sonya Miller, Phil Pegion, Augustin Vintzelios. MODELS. NSIPP 1 AGCM (2 x 2.5 x 34L resolution)

miya
Download Presentation

BIASES IN NSIPP SIMULATIONS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. BIASES IN NSIPP SIMULATIONS • COMPARE AMIP AND COUPLED RUNS WITH SAME ATMOSPHERIC MODEL • CLIMATOLOGY– TROPICAL BIASES • INTERANNUAL VARIABILITY • SENSITIVITY Credits: Sonya Miller, Phil Pegion, Augustin Vintzelios

  2. MODELS • NSIPP 1 AGCM (2 x 2.5 x 34L resolution) • RAS Convection (w/ autoconv. And reevap) • Louis turbulence • M-D Chou Radiation • Poseidon OGCM (1/3 x 5/8 resolution) • Schopf’s quasi-isopycnal dynamics • Reduced gravity • Global (no Arctic or Med) • Mosaic LSM • Direct coupling – no flux correction

  3. SEASONAL ANOMALIES AT THE EQUATOR

  4. DIFFERENCE 1 DEG ATMOS 2 DEG ATMO

  5. CONTROL CU FRIC

  6. SUMMARY • Model has many of the same biases as other coupled models. • Clear indications of many of these are already apparent in AMIP mode. • Though some like, the bias in the SPCZ (double ITCZ), are much worse in coupled mode. • Upper air features (stationary waves, zonal mean biases) not very affected by coupling. • Both AMIP and coupled models have reasonable stratus, but generic coupled problems in the East Equatorial Pacific still present

More Related