Model Accuracy allows a navigator and crew to instantly understand the strengths and weaknesses of particular GRIB sources (ex: GFS, EC, COAMPS, Predict Wind, ect…) and make a more educated and confident decision on which GRIB source to trust the most. The utility of tracking both macro and micro shifts in True Wind Direction and watching the shifts inside frontal systems is critical in understanding the accuracy of each GRIB source. By knowing you are always navigating off the best weather source which is actually verified by where you are in the ocean, the navigator can now spend less time in the nav station and more time resting or on deck. It allows the crew to know the heading and tactics are based off the best information available.
Inside the graphical plots and results pages the user can identify the “tendencies” of each GRIB (forecasting under/over speed for TWS or TWD left or right of actual captured data). Understanding the EXACT tendencies over a selected time period will allow the navigator to correctly twist TWD and raise/lower TWS inside the optimal routing functions of other sailing software. This way the projected optimal course can always be based on not only the most accurate weather file, but the most accurate weather file that is correctly “calibrated” for the current and past forecast errors.
There are a plethora of GRIB sources, all claiming they are the best source for you and your team to trust as you cross an ocean. Finally there is an application which provides a metric for the consumer, the absolute end user, which ranks the accuracy of different GRIB sources and exposes their successes and shortcomings. This software was made strictly for you, the sailor.
VPPs (polars) are critical boat to a boat’s ability to ensure the optimal routing software has the most accurate projected performance. inside every “optimal course” there are two variables in the solution, the boat’s VPPs and a weather GRIB file. Until now there has been no way to formally analyze the accuracy while on the water of the second 50% of the optimal route solution, the GRIB file. Now a team is now able to know they are pairing their best VPP’s with the best GRIB possible for the optimized route. Every sailing team always wants to know they have the absolute best VPPs loaded into their routing software, now they can know they have the absolute best GRIB as well.