Groundwind
Forecast, SD or HD
HD: the wind at your stand.
A forecast gives one wind for the whole area. SD works out how your ground turns it: the wind across your ground, free. HD solves it over your own ground and sharpens it at your stand.
The forecast. One wind for the whole area, from the north-northeast. Your scent runs straight downwind into the lake, and the bull bedded up the slope is safe.
SD. The same forecast, worked over your ground: the hill turns the wind, and your scent runs along the foot of the slope toward him. He's right on its edge: maybe winded. The dashed line is where the forecast had it.
HD. The same turn, sharpened over your own ground: one tongue of scent along the slope, right over him. He's winded.
One sit at Lac Bailey, Québec, 12 October at 4 pm, the forecast from the north-northeast at 18 km/h. The bull is for the picture: say one's bedded 240 m along the slope.
Where SD is right, and where HD is better.
- SD gets the big picture right
- Across most of your ground, SD turns the forecast's wind the way your hills and valleys do. It's the big step, and it's free: there, SD and HD agree within a few degrees.
- HD is better at the stand
- Behind a rise, along the foot of a slope, at the edge of a cut, through a gap in the trees: the places the wind takes one more turn, and the ones that decide whether you get winded. HD finds that turn, and how far your scent carries.
- On flat ground
- The two agree closely, and SD has you covered.
What HD adds.
- Everywhere
- Complete 3D wind modeling over your terrain. The eddy behind every ridge, the bend around hills, and the swirl where a cut meets the timber, worked out at head height for any hour of the week.
- Where LiDAR has been flown
- The bush measured at eye level, so you know where you can move quietly and where you'll see something coming. Shooting lanes from the sit: where you can see and shoot.
Ask for HD on your spot.
Drop your pin and tap Ask for HD. Builds are free during the beta; each HD solve keeps our machines busy for hours, so they go in the order they're asked for, and we email you when yours is ready.