What is a GPWT?
A grid-point wind and temperature (GPWT) forecast provides a text-based display of forecast wind speed, wind direction and temperature at specified heights above mean sea level. These GPWT forecasts are displayed in charts for three different volumes of airspace, known as High-level, Mid-level and Low-level Forecasts.
How long are GPWT valid for?
Do the GPWT forecast charts maintain their same routine issues and validity? Low level GPWT forecast charts are issued every six hours and cover the following 24 hour period. Each chart is valid for the 3 hour period following the validity time shown on the bottom left hand corner of every chart.
What does CI ABV mean?
The graphic contains Cloud Coverage (few/scattered, broken, overcast) grid, with Mean Sea Level (MSL) overlay of BKN or OVC cloud bases and tops below FL180. LYRD represents top of the highest multiple layers of BKN or OVC clouds; CI ABV indicates cirrus clouds above.
Is GAF AMSL or AGL?
The Graphical Area Forecast (GAF) is designed primarily to meet the needs of pilots flying in the airspace between the surface and 10000 feet above mean sea level (AMSL). GAFs provide information on weather, cloud, visibility, icing, turbulence and freezing level in a graphical layout with supporting text.
How often are GAF issued?
The GAFs are issued two at a time, each with a 6 hour validity period, so that each issue covers the next 12 hours. Two 6 hour GAFs are issued no later than 30 minutes be- fore the commencement of each 12 hour validity period.
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By transforming the way commercial businesses use energy, GridPoint unlocks the decarbonization, sustainability, and grid resiliency required for a cleaner, more efficient tomorrow. Our technology platform harnesses power and potential within a building to deliver ongoing energy, operational, and resiliency benefits.
What is a gpwt forecast?
A grid-point wind and temperature (GPWT) forecast provides a text-based display of forecast wind speed and direction and temperature forecasts at specified heights above mean sea level, presented in a gridded format. These GPWT forecasts are displayed in charts for three different levels, known as High-level, Mid-level and Low- level Forecasts.
How do you preserve the precision of a grid?
To preserve as much data precision as possible the difference between the values at grid points is saved and packed rather than the actual values. The grid is then reconstructed by adding the differences between grid values starting with the first value, which is stored in unpacked ASCII form in the header record.
What is GridPoint intelligent buildings?
Networked together, GridPoint intelligent buildings provide reliable, precise, and instantaneous capacity for utilities and grid operators. GridPoint’s subscription model makes participation easy – customers see energy savings from day one with increased value over time.