These models are all over the map, forecasting everything from a nearly certain Obama victory to the substantial likelihood of his defeat.
In this section, the geographic distribution of the performance of VTEC map forecasting is investigated at the level of a grid point.
Since GIM-TEC maps are provided with 1- or 2-days latency, the global maps forecast for 1 day and 2 days ahead are derived using an harmonic analysis applied to the temporal changes of TEC, foF2 and hmF2 at 5112 grid points of a map encapsulated in IONEX format (−87.5°:2.5°:87.5°N in latitude, −180°:5°:180°E in longitude).
In terms of global ionospheric VTEC maps forecasting, the Center for Orbit Determination in Europe (CODE), an IAAC, has provided predicted ionospheric products (one- and two-day-ahead VTEC maps, named C1PG and C2PG, respectively) for public access since 2008, via the FTP server of the Crustal Dynamics Data Information System (CDDIS, ftp://cddis.gsfc.nasa.gov/).
You'll see current conditions, a radar map, marine forecast and tides, forecasts and warnings that are elaborate and in plain English.
*10 Map showing forecast areal extent of lapilli fall.
*8 Map showing forecast areal extent of ash fall.
*7 Time at which map of forecast extent of ash fall (*8) applies: 17:00 (JST) on June 13.
This map shows forecast wind chills at 7am Sunday morning from the Great Lakes to New England.
According to Weather Atlas creator, David Barnard, the app includes bottom-focused navigation modeled after Apple's Maps app, as well as a stacked maps and forecast that will take advantage of the extra space provided by the iPhone 8's extra vertical space.
