[MTcam] Mokuʻāweoweo Caldera Thermal from the Northwest Rim
This image is from a temporary thermal camera located on the north rim of Mauna Loa's summit caldera. The temperature scale is in degrees Celsius up to a maximum of 500 degrees (932 degrees Fahrenheit) for this camera model, and scales automatically based on the maximum and minimum temperatures on the caldera floor and not the whole frame, which sometimes results in the rim (bottom of image) looking saturated (white). Thick fume, image pixel size and other factors often result in image temperatures being lower than actual surface temperatures.
The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure visibility. The cameras are subject to sporadic breakdown, and may not be repaired immediately. Some cameras are observing an area that is off-limits to the general public because of significant volcanic hazards.