What are temporal and spatial resolution?

Spatial resolution refers to the size of one pixel on the ground. Temporal resolution refers to the how often data of the same area is collected. This is typically referred to as Revisit Time.

What is satellite temporal resolution?

The temporal resolution provides information on the distance of time between the acquisitions of two images of the same area. The higher the temporal resolution, the shorter the distance of time between the acquisitions of images. Many satellites have a medial temporal resolution of about 14 days.

How satellite images can differ in terms of spatial and spectral resolution?

The spatial resolution specifies the pixel size of a satellite image. The higher the spatial resolution, the more detail it will contain. Fine details can be seen in the very high and high resolution images, whilst a low resolution image will only show coarse features.

What are the 4 types of resolution?

Remotely sensed images are generated based on four different types of resolutions:

Spectral.
Spatial.
Temporal.
Radiometric.

Why is poor temporal resolution bad?

Every student in psychology or neuroscience should be able to tell you that fMRI has good spatial resolution (as above), but poor temporal resolution. This is because the haemodynamic response imposes a fundamental limit on the time-precision of the measurement.

What does poor temporal resolution mean?

Temporal Resolution: fMRI scans have poor temporal resolution. Temporal resolution refers to the accuracy of the scanner in relation of time: or how quickly the scanner can detect changes in brain activity. Consequently, psychologists are unable to predict with a high degree of accuracy the onset of brain activity.

Which satellite have the best temporal resolution?

Geostationary satellites acquire images of the same section of the surface of the earth so they have a very high temporal resolution.

What are the three components of spectral resolution?

IUPAC defines resolution in optical spectroscopy as the minimum wavenumber, wavelength or frequency difference between two lines in a spectrum that can be distinguished.

How are spatial resolution and temporal resolution related?

The spatial resolution specifies the pixel size of satellite images covering the earth surface. The temporal resolution specifies the revisiting frequency of a satellite sensor for a specific location. In the first instance, a sensor’s spectral resolution specifies the number of spectral bands in which the sensor can collect reflected radiance.

What is the spatial resolution of a satellite?

Spatial Resolution. The spatial resolution specifies the pixel size of satellite images covering the earth surface. High spatial resolution: 0.41 – 4 m. Low spatial resolution: 30 – > 1000 m. Temporal Resolution. The temporal resolution specifies the revisiting frequency of a satellite sensor for a specific location.

Which is the most common characterization of satellite remote sensing?

The most common characterization of different satellite remote sensing (RS) systems results from the systems diverse spatial, temporal and spectral resolutions. Spatial Resolution. The spatial resolution specifies the pixel size of satellite images covering the earth surface. High spatial resolution: 0.41 – 4 m.

What does spectral resolution mean in imaging spectrometer?

Imaging spectrometers collect reflected light information within defined bands or regions of the electromagnetic spectrum. The spectral resolution of a dataset that has more than one band, refers to the spectral width of each band in the dataset. In the image above, a band was defined as spanning 800-810 nm.