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GLOBE environmental measurements are in four study areas: Atmosphere/Climate,
Hydrology, Land Cover/Biology, and Soils. The following are
the details of the instruments required for each study area. |
| Measurements |
Instrument |
Photos
|
|
Atmosphere/Climate |
| Cloud Cover/Type |
Cloud chart |
|
| Precipitation |
Liquid |
Rain gauge |
| Solid |
Snow board, Rain gauge, Snow depth
pole |
| Precipitation
pH |
pH indicator paper |
| pH pen, two buffer (7 and 4 or 10) |
| pH meter, three pH buffers (7, 4,
and 10) |
| Air Temperature: Maximum,
Minimum, and Current |
Maximum / Minimum thermometer, Calibration
thermometer, Instrument shelter |
|
Hydrology |
| Transparency |
Deep Water Sites Only |
Secchi disk, 5 m rope |
|
| Surface Water |
Turbidity tube |
| Water Temperature |
Organic liquid filled thermometer |
| Water pH |
pH indicator paper |
| pH pen, two buffer (7 and 4 or 10) |
| pH meter, three pH buffers (7, 4,
and 10) |
| Electrical Conductivity
– Fresh Water Sites Only |
Total dissolved solids (conductivity)
tester, Calibration solution |
| Alkalinity |
Water alkalinity kit |
|
Soil |
| Soil Characterization
– Field Horizon Depth, Structure, Colour, Consistence,
Texture, Carbonates |
Meter stick, Colour chart, Sample
cans, shovel or Auger |
|
| Soil Characterization
– LabBulk Density, Particle Size, Particle Density,
soil pH |
Drying oven, 100 mL Graduated cylinder,
500 mL clear plastic graduated cylinder, Hydrometer, Thermometer,
Dispersing solution, pH paper or meter |
| Soil Moisture |
Balance, meter stick, drying oven,
Sample cans, 50 m tape measure |
| Soil Temperature |
Soil thermometer |
|
Land
Cover / Biology |
| Land cover mapping |
Remote sensing image, MultiSpec software |
|
| Species Identification |
Dichotomous keys |
| BiometryTree Circumference,
Tree Height, Canopy Cover, Ground Cover |
Clinometer and Densiometer (both may
be student – made, 50 m tape measure |
|
GPS |
| Latitude and Longitude of study sites |
GPS receiver |
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