Mesospheric Simulations with the NOGAPS-ALPHA model: Applications to the Summer Polar Mesosphere and AIM data

Details Mesospheric Simulations with the NOGAPS-ALPHA model: Applications to the Summer Polar Mesosphere and AIM data Mesospheric Simulations with the NOGAPS-ALPHA model: Applications to the Summer Polar Mesosphere and AIM data

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa13b..06s&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA13B-06

Statistics

0305 Aerosols And Particles (0345, 4801, 4906), 0341 Middle Atmosphere: Constituent Transport And Chemistry (3334), 3315 Data Assimilation

Scientific paper

The Navy Operational Global Atmospheric Prediction System (NOGAPS), the Department of Defense's global numerical weather prediction (NWP) system, consists of two main components: the Naval Research Laboratory (NRL) Atmospheric Variational Data Assimilation System (NAVDAS) and a global spectral general circulation model (GCM) for forecasting. NRL researchers are currently developing an Advanced-Level Physics High-Altitude (ALPHA) NOGAPS prototype that extends the currently operational 1 hPa upper boundary of NOGAPS through the mesosphere and lower thermosphere (MLT) to ~110 km. We report results of preliminary experiments with this NOGAPS-ALPHA system during May-June 2007, focused on the northern hemisphere (NH) summer mesosphere observed from the Aeronomy of Ice in the Mesosphere (AIM) satellite. These AIM-period NOGAPS-ALPHA experiments have two main goals: to provide global modeling support for AIM science and to allow objective validation of these new NOGAPS-ALPHA MLT fields using independent observations from AIM. We report results of runs which assimilate temperature and water vapor data from the SABER and MLS instruments up to ~0.01 hPa. We investigate the development of the cold NH summer mesopause in NOGAPS-ALPHA and its sensitivity to parameterized nonorographic gravity wave drag (GWD) and radiative heating/cooling by comparing with temperatures and water vapor measured by AIM's SOFIE instrument. We can also compare the variability in the NOGAPS-ALPHA temperature and water vapor fields with mesospheric cloud occurrence statistics measured by CIPS on AIM.

Affiliated with

Also associated with

No associations

Rating

Mesospheric Simulations with the NOGAPS-ALPHA model: Applications to the Summer Polar Mesosphere and AIM data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mesospheric Simulations with the NOGAPS-ALPHA model: Applications to the Summer Polar Mesosphere and AIM data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mesospheric Simulations with the NOGAPS-ALPHA model: Applications to the Summer Polar Mesosphere and AIM data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1411440