About the Tool and Data

Tool

GLOBE Graphing Tool
http://viz.globe.gov/viz-bin/choose.cgi?l=en&b=g&rg=n&enc=00&nav=1&output=table&FPF=2&sgm=1 (will open in new window)

The GLOBE Graphing Tool can display up to six sets of GLOBE data at the same time. It has features that allow the user to select time frames that vary between one week and several years.

Tool Builder

The GLOBE Program

Tool Cost

Free

Tool Help

See the tutorial for using the GLOBE Graphing Tool on the GLOBE Web site at http://viz.globe.gov/viz-bin/time.cgi?Tu=0&l=en&rg=n&b=g

Another tutorial is found at http://viz.globe.gov/viz-bin/show.cgi?l=en&b=g&rg=&enc=00&nav=1&page=help-tut_intro.ht

Data Source 1

GLOBE Data Set Maximum Air Temperature

The daily Maximum Air Temperature was measured in accordance with GLOBE 's Maximum, Minimum, and Current Temperature Protocol. The U-shaped Maximum-Minimum Thermometer is kept in a white, well-ventilated housing to prevent it from being directly heated by the sun. The thermometer housing is kept sufficiently away from buildings and trees to avoid their impact. GLOBE protocol calls for the calibration of the thermometer to be checked regularly, and minimally to be checked once every three months.

Geospatial Coverage

GLOBE data exists for schools that are scattered across much of the Earth. (Bounding Box: W = -180.0 degrees; E = +180.0 degrees; S = -90.0 degrees; N = + 90.0 degrees)

The two greatest concentrations of data exist in the United States (Bounding Box: W = -177.1 degrees; E = -61.48 degrees; S = +13.71 degrees; N = +76.63 degrees) and in Europe (Bounding Box: W = -30.0 degrees; E = 50.0 degrees; S = +35.0 degrees; N = +70.0 degrees).

Temporal Coverage

January 1, 1995 to Present

Data Provider

The GLOBE Program

Data Help

For more information about the Maximum Air Temperature data, download the GLOBE Protocol for Max/Min/Current Air Temperature at http://www.globe.gov/fsl/html/templ.cgi?measpage&lang=en&nav=1

Data Source 2

GLOBE Data Sets Soil Moisture at 10 cm and 90 cm

The water content of the soil is measured in terms of weight of water per gram of soil. It is determined using a sensor that measures the electrical conductivity of the water that enters a ceramic block from the surrounding soil. The sensor is placed at various depths below the surface of the ground (in this Chapter, at 10 cm and 90 cm), with wire leads running from the sensor to above ground level. Students attach a soil moisture meter to the wire leads to collect the data.

Geospatial Coverage

GLOBE data exists for schools that are scattered across much of the Earth. (Bounding Box: W = -180.0 degrees; E = +180.0 degrees; S = -90.0 degrees; N = + 90.0 degrees)

Temporal Coverage

April 25, 1995 to Present

Data Provider

The GLOBE Program

Data Help

For more information about the Soil Moisture data, download the GLOBE protocols for Soil Moisture Sensor and Galvimetric Soil Moisture at http://www.globe.gov/fsl/html/templ.cgi?measpage&lang=en&nav=1

Data Source 3

GLOBE Data Set Rainfall

Rainfall is measured using a rain gauge that is carefully positioned to collect accurate data. Schools participating in the GLOBE Program are encouraged to check and record rainfall daily, but for times when this is not possible, rain that collects for up to seven days can be reported as a total. While daily readings produce the most accurate information, scientists are interested in knowing the total amount of rainfall that an area receives.

Geospatial Coverage

GLOBE data exists for schools that are scattered across much of the Earth. (Bounding Box: W = -180.0 degrees; E = +180.0 degrees; S = -90.0 degrees; N = + 90.0 degrees)

Temporal Coverage

January 1, 1995 to Present

Data Provider

The GLOBE Program

Data Help

For more information about the Rainfall data, download the GLOBE protocol for Precipitation at http://www.globe.gov/fsl/html/templ.cgi?measpage&lang=en&nav=1

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