Naval Research Laboratory
Global Ocean Analysis and Modeling
This is an official U.S. Navy web site.
1/32° Global NLOM Nowcast/Forecast
Please note: This website is no longer being updated. Global NLOM has been retired and replaced by the 1/12° Global HYCOM nowcast/forecast system. Interested users should transition to the 1/12° global HYCOM web page
Click on the ocean of interest to see regional snapshots
Results depicted on these web pages are from the operational
1/32° global NLOM nowcast/forecast system. This system became operational on 6 Mar 2006 as an upgrade to the 1/16° global
NLOM system that ran operationally at NAVOCEANO from 27 Sep 2001 - 5 Mar 2006.
Overall, the 1/16° NLOM ran in real-time 18 Oct 2000 - 11 Mar 2006 and
was discontinued 12 Mar 2006 and the 1/32° NLOM has been running in real
time or near real time since 1 Nov 2003 and these results are archived on
the corresponding web pages along with hindcast results extending back to 1993, mostly on the 1/16° NLOM web page. The model presently is assimilating SSH
from 3 satellite altimeters (ENVISAT, GFO and JASON-1) and sea surface
temperature from satellite IR imagery. Altimeter track data over a 3-day
window are assimilated each day. Nowcasts are run daily and 30-day forecasts are presently run once per week.