What is land surface temperature used for?

Land Surface Temperature is an important variable within the Earth climate system. It describes processes such as the exchange of energy and water between the land surface and atmosphere, and influences the rate and timing of plant growth.

How do you find the surface temperature of land?

Land surface temperature (LST) is the radiative skin temperature of the land derived from solar radiation. LST measures the emission of thermal radiance from the land surface where the incoming solar energy interacts with and heats the ground, or the surface of the canopy in vegetated areas.

Which wavelengths are most commonly used in remote sensing to retrieve data on land surface temperature?

Within the EMR spectrum (Figure 1), the wavelength of most use for LST measurements is the thermal infrared (TIR), between 8 and 15 µm.

What is land surface temperature and emissivity?

Land surface temperature (LST) and land surface emissivity (LSE) determine the longwave radiation in land surface radiation and energy budgets and are the key input parameters in climatic, hydrological, ecological, and biogeochemical models.

How does temperature affect land?

Changes in the surface temperature heat or cool the air above, which leads to air movement (wind). Solar heating of the Earth’s surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler water surfaces.

What is the surface of land?

An area of land; ground: climbed a tree to view the surrounding terrain. b. A particular geographic area; a region: a guide who knows this terrain well. 2. The surface features of an area of land; topography: boots designed for rugged terrain.

Does the land affect climate?

Fires in forests, grasslands, shrublands, and agricultural lands affect climate in two ways: 1) transporting carbon from the land to the atmosphere in the form of carbon dioxide and other greenhouse gases, and 2) increasing the concentration of small particles (aerosols) in the atmosphere that tend to reduce the amount …

How is climate change affecting life on land?

Agriculture is particularly sensitive to climate change. As the relative outputs of agriculture and forestry are altered by temperature increases, land productivity across the planet will be altered. Over the next several decades, warmer weather in low-latitude regions will increase the likelihood of drought.

How is land surface temperature determined from satellite?

Remote Sensing of LST Satellite-based Land surface temperature can be determined from thermal emission at wavelengths in either infrared or microwave which is “atmospheric windows”. However, there are many uncertainties involved in the retrieval of LST from radiance which is directly

How to calculate land surface temperature from Landsat 8?

To solve this equation you need the RADIANCE_MULT_BAND_x and RADIANCE_ADD_BAND_x from the Metafile that is included in every Landsat 8 download. These values (can) differ from image to image, so make sure you look them up for every scene!!

How to improve the accuracy of satellite derived LST?

The theoretical framework and methodologies used to derive the LST from the data are reviewed followed by the methodologies for validating satellite-derived LST. Directions for future research to improve the accuracy of satellite-derived LST are then suggested.

Which is the most accurate measure of land surface temperature?

Abstract: Land surface temperature (LST) is a key variable in climatological and environmental studies. However, accurate measurements of LST over continents are not yet available for the whole globe.

What is land surface temperature used for? Land Surface Temperature is an important variable within the Earth climate system. It describes processes such as the exchange of energy and water between the land surface and atmosphere, and influences the rate and timing of plant growth. How do you find the surface temperature of land? Land…