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Dirty Ice or Icy Dirt?. Water on Mars. Hydrogen Gamma Ray Map. Definitions of Soil Moisture Saturation. UNDER-SATURATED Not enough water to fill all of the pore space of a given soil SATURATED Just the right amount of water to fill all of the pore space of a given soil OVER-SATURATED

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definitions of soil moisture saturation
Definitions of Soil Moisture Saturation

UNDER-SATURATED

Not enough water to fill all of the pore space of a given soil

SATURATED

Just the right amount of water to fill all of the pore space of a given soil

OVER-SATURATED

More water than can fit in the pore space of a given soil

hydrogen gamma ray map1
Hydrogen Gamma Ray Map

Saturated?

Saturated?

experiment objectives
Experiment Objectives

Design your own experiment!

What is the maximum water weight % that typical dirt on Earth can hold?

water estimates on earth

C

A

Dry Layer

B

Perma-frost

Mellon, et al., 2004, Icarus 169, p 337.

Ice Sheet

Provided by Dante Lauretta, 2003.

Water Estimates on Earth

Guess the water weight % for each of the surface layers below.

0%

Mellon, et al., 2004, Icarus 169, p 337.

Saturated Permafrost Layer

Over-saturated Ice Sheet

Under-saturated Dry Layer

water estimates on earth1

A

Dry Layer

Mellon, et al., 2004, Icarus 169, p 337.

B

Perma-frost

Mellon, et al., 2004, Icarus 169, p 337.

Ice Sheet

Provided by Dante Lauretta, 2003.

Water Estimates on Earth

Approximate water weight % for each of the surface layers below.

0%

0-1%

10–30 %

100 %

Saturated Permafrost Layer

Over-saturated Ice Sheet

Under-saturated Dry Layer

water estimates on mars
Water Estimates on Mars

B

A

Frost-free Map of Water at Near Surface of Mars

dirty ice cones
“Dirty Ice” Cones
  • Recipe:
  • Shaved ice
  • Crushed graham crackers or cookies
  • Syrup (optional)