Satellite Images

What do satellites use to gather information about the Earth?

Remote sensors

What type of sensors act like sophisticated scanners for satellites?

Multispectral sensors

How many spectral bands do thematic mappers observe?

Seven spectral bands

What types of satellite images are produced based on the electromagnetic spectrum?

Visible Satellite Images, Infrared (IR) Satellite Images, Water Vapour (WV) Satellite Images

What do scientists need data from satellites for?

To observe large areas and impacts like pollution or deforestation

What do satellite images provide for scientists?

Detailed study over long periods

What is enhanced from satellite images to study environmental processes?

Digital data

What can satellite data inform regarding environmental problems?

Appropriate plans, actions, or strategies

What event in 1988 did satellite images help assess in Yellowstone National Park?

Wildfires

What can satellite images track related to weather?

Path of storms and accurate forecasts

What long term climate patterns can satellite images monitor?

It can monitor the melting of ice caps and glaciers, and observe shifts in vegetation patterns

What do satellite images help track in ecosystems?

Recovery throughout an ecosystem.

What aspects can satellite image data help understand?

Changes in ocean surface temperature, Groundwater use impact on lake levels, Drought effects on water supplies, Forest health, Flooding impacts on cities, Urban changes over time

What lake in Iran lost about 60% of its water due to climate change?

Lake Oroumeih (Urmia).

What natural disaster's impact was shown in a satellite image from 2011 in Japan?

The tsunami.

What colors represent vegetation and burned vegetation in satellite images?

Green = vegetation, Red = burned vegetation

What type of data does the Enhanced Thematic Mapper (ETM+) produce?

Approximately 3.8 gigabits of data for each scene.

What was the purpose of the satellite images of Tropical Storm Alex?

To provide a visible satellite image over the southwestern Gulf of Mexico.

What type of satellite image was obtained by NASA in July 2009?

Infrared Satellite Image of global carbon dioxide.

What is the significance of the group of satellites that orbit the Earth along the equator?

They capture data across various spectral bands.