What is Nowcast for the Next Generation Navy?
Nowcast for the Next Generation Navy is a project at the Naval Research Laboratory (NRL) to develop an enterprise-class, network-centric, data fusion system (called Nowcast) that will allow the forward-deployed battlegroup to automatically and continuously fuse meteorological data from available sources. The Nowcast system will allow the battlegroup to organically maintain a database of the Virtual Natural Environment (VNE) that characterizes the battlespace. The Nowcast system will continuously transmit the updated products directly to end users to maintain a common situational awareness. The Nowcast system is being developed as a DII/COE compliant software segment targeted for transition to the Space and Naval Warfare Systems Command's (SPAWAR PMW 155) Navy Integrated Tactical Environmental Subsystem (NITES).
What's the difference between nowcasting and forecasting?
Nowcasting refers to the weather at the current time and what changes to expect over the next 2 - 6 hours. Nowcast systems operate continuously with little user intervention, which is appropriate for the time scales of the phenomena of interest (for example thunderstorms). In contrast, forecasting is a periodic process, typically done two or four times per day, with significant interpretation and product development by a trained forecaster. A nowcast system does not diminish the importance of the forecaster, rather, it allows the forecaster to concentrate on the larger scale weather and the impact on the longer-term planning cycle.
Who else develops nowcast systems?
Nowcast systems have been developed by the National Center for Atmospheric Research (NCAR) and the Massachusetts Institute of Technology (MIT) Lincoln Labs for aviation purposes. The goal in the Nowcast project is to leverage this work to more quickly advance the capabilities in the Navy.
What are the Navy nowcasting requirements?
Automated characterization of the battlespace environment is supported by the following Operational Meteorology and Oceanography (METOC) Requirements: 94-08 (Real-Time Tactical METOC Assessment System), 95-01 (Sensible Weather Forecasting) and 98-04 (On-Scene METOC Analysis/Forecast Capability).
What is required to run the Nowcast system JAVA client applet?
You need a Java enabled web browser and the JAVA 2 Platform, Standard Edition (J2SE) version 1.4 (or higher) and screen resolution set at 1024x768 or higher. The Nowcast applet has been tested with both Netscape and Microsoft Internet Explorer web browsers.
How does the Nowcast system interact with the TEDS database?
As a component of NITES, Nowcast utilizes the Tactical Environmental Data System (TEDS) database. Model grids and observation data are extracted from TEDS for processing and the resultant products from the Nowcast system are sent back to TEDS to be used by other applications.
What are the future plans for the Nowcast system?
The primary thrust for the immediate future is the incorporation of weather radar data into the Nowcast system. We are working on NEXRAD and Supplemental Weather Radar (SWR) data for the continental U.S., and TEP (Tactical Environmental Processor) radar data at sea.
Who is developing the Nowcast system?
The Nowcast project is managed by the On-Scene Systems Section (Code 7542) of the Naval Research Laboratory Marine Meteorology Division with contributions from Computer Sciences Corporation (CSC) and Science Applications International Corporation (SAIC). Nowcast contributors include NCAR, MIT Lincoln labs, the Naval Postgraduate School, and the University of Oklahoma/National Severe Storms Laboratory. Nowcast also relies on technology and data made available from other Sections at NRL: Data Assimilation, Mesoscale Modeling, and Satellite Meteorological Applications.