Case study · Motion design

Space · Earth observation

CNES.

Client
CNES
Production
SapienSapienS
Series
Terre en vue(s), 9 episodes of about 5 minutes
Role
Animation of episode 3, Quand la mer monte

Terre en vue(s) is a CNES series showing the general public how and why satellites observe the Earth: oceans, atmosphere, water cycle.

For SapienSapienS, I animated episode 3, Quand la mer monte (When the sea rises). It explains how satellites measure ocean levels from space, to within a millimetre.

The figure 3.57 between two fish, under the water surface

01 — The challenge

A few millimetres, seen from 1,336 km.

Sea level is rising by more than 3 mm a year. Explaining it means linking a tiny value to a very distant satellite.

The figure 3.57 between two fish
A value at fish height
The Jason 1 satellite and the year 2001
Thirty years of satellites
Satellites orbiting the Earth at 1,336 km
The orbit

02 — The mechanism

How it works, step by step.

The satellite sends a radio wave towards the sea. Its round-trip time gives the distance, and so the height of the water.

Radar wave sent from the satellite to the sea
The radar altimeter
Satellite and a measured distance of 1,335.6 km
The measurement
Map of the world’s oceans
The ocean map
Making visible a measurement nobody can see.

03 — From storyboard to screen

From pencil to motion.

The storyboard drawn by SapienSapienS set the shots, the voice-over and the camera moves. I turned it into animation, shot by shot.

Pencil sketch of a glacier
Snow-covered glacier under a blue sky

“Glaciers are melting…”

Sketch of the satellite sending a wave down to Earth, at the nadir point
The satellite sends a radar wave to the nadir point

“…straight below the satellite.”

Sketch of the 480 m and 1,336.08 km distances under the sea
Animated diagram of the 8 km and 480 m distances between sea and seabed

“So we know its height.”

Pencil sketch of the SWOT satellite
The SWOT satellite and the year 2022

“A new generation of altimetry satellites…”

Approach

A technical subject, for the general public.

The episode speaks to everyone while keeping real altimetry concepts.

i.

Concrete references

Figures are staged in context, to be understood rather than read.

ii.

One idea at a time

Emission, travel, return, calculation: motion breaks the mechanism down.

iii.

A colour code

Bold backgrounds separate the steps and guide the eye.

04 — With SapienSapienS

Working with a studio.

SapienSapienS, a production agency, designed the series for CNES: nine hybrid episodes mixing archive footage, motion design and on-location reporting. The studio owns the writing and the look, I bring the animation.

  1. 01

    The script

    Written by SapienSapienS with CNES: the voice-over text and the key figures.

  2. 02

    The storyboard

    26 drawn pages, with voice-over, camera moves and staging notes.

  3. 03

    The visual identity

    One graphic direction for the series: dense gradients, CNES typefaces, large letters in the background.

  4. 04

    The animation

    Satellites, radar waves, maps and figures brought to life within that frame, through to sign-off by the studio and CNES.

Board of the chosen graphic direction: title and eight colour gradients
The series’ graphic directionSapienSapienS