Ground-based sensors are not considered remote sensing platforms because they are not located at a distance from the target being observed.

Remote sensing allows for the collection of data over large areas, making it ideal for monitoring environmental changes on a regional or global scale.

Multispectral imagery is commonly used for land cover classification because it provides information about the reflectance of different wavelengths of light, which can be used to distinguish between different types of land cover.

GIS is primarily used to analyze and visualize environmental data, allowing users to identify patterns and trends, and make informed decisions based on the data.

Climate change modeling is not typically considered a common application of GIS in environmental monitoring, as it involves complex climate models and simulations that are typically conducted using specialized software.

Image processing is the process of manipulating and enhancing remote sensing data to extract meaningful information. This can involve tasks such as correcting for geometric distortions, enhancing image contrast, and applying various filters.

Metadata is not a type of GIS data, but rather information about the data, such as its source, accuracy, and coordinate system.

Drones can collect data at very high spatial and temporal resolutions, allowing for detailed monitoring of environmental changes.

GPS sensors are not remote sensing sensors, as they do not collect data about the Earth's surface. Instead, they are used to determine the location of the remote sensing platform.

Data fusion is the process of combining data from different sources to create a more comprehensive understanding of an environmental issue. This can involve combining data from remote sensing, GIS, and other sources.

Time series analysis is not typically considered a common type of GIS analysis, as it involves analyzing data over time, which is typically done using specialized statistical software.

Mapping is the process of creating a map using GIS software. This can involve adding layers of data, such as roads, rivers, and land use, and symbolizing the data in a way that is easy to understand.

GPS is not a remote sensing satellite, but rather a navigation satellite system that provides location and time information.

GIS allows for the integration of multiple data sources, such as remote sensing data, GIS data, and other types of data, which can be used to create a more comprehensive understanding of environmental issues and support decision-making.

GPS sensors are not environmental monitoring sensors, as they do not measure environmental parameters. Instead, they are used to determine the location of the sensor.