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TWIN LAKES · JANUARY 2018

Black Ice

Clear black ice on Twin Lakes in January, cracked into a pattern that only makes sense from above.

AircraftDJI Inspire 2Zenmuse X4S 1" · 20 MP
Sorties1 flightJan 16
On this page5 stills · 3 clipsSelected from the full shoot
Height above groundUp to ≈120 ftEstimated from USGS terrain

The plan

Flown with the Inspire 2 and its X4S camera. A polarized look straight down turns the crack lines into a map.

The flight path

Scroll the frames. The map follows.

© OpenStreetMap contributors · cones = camera heading · takeoff area hidden

Frame
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Height is above the ground directly below, estimated from the takeoff point and USGS 3DEP terrain — not the aircraft's altimeter, which reads from takeoff. Shown only where the estimate is 400 ft or less.

The crack map. Pressure cracks across clear ice, with the dock for scale.#01 · HDG 000° · −44.8° · ≈81 FT
Dock and shore. Where the ice meets the shore and the boardwalk.#02 · HDG 344° · −40.1° · ≈79 FT
Pattern. Tilted down further, the cracks fill the frame.#03 · HDG 344° · −57.4° · ≈120 FT
Reflection. Sky reflected in the ice near the far shore.#04 · HDG 311° · −25.3° · ≈119 FT
Open water. Wind ripples where the ice gives way.#05 · HDG 195° · −33.7°
● VIDEO
Skimming low over the black ice, with the clouds mirrored in it.#06 · DJI_0004
● VIDEO
Straight down over the crack map as the drone drifts across the lake.#07 · DJI_0005
● VIDEO
Climbing away from the ice to show the lake, the road and the mountains beyond.#08 · DJI_0005B

Next flight · 09

Out-the-Road Homestead →

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