Distributed fiber-optic temperature sensing for hydrologic systems

• Autoři: SELKER John S.; THEVENAZ Luc; HUWALD Hendrik; MALLET Alfred; LUXEMBURG Wim; VAN DE GIESEN Nick; STEJSKAL Martin; ZEMAN Josef; WESTHOFF Martijn; PARLANGE Marc B.
• Rok publikování: 2006
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Water Resources Research
• Fakulta / Pracoviště MU: Přírodovědecká fakulta
• www: http://www.agu.org/journals/wr/
• Obor: Geochemie
• Klíčová slova: fiber optic; temperature profile
• Popis: Five illustrative applications demonstrate configurations where the distributed temperature sensing (DTS) approach could be used: (1) lake bottom temperatures using existing communication cables, (2) temperature profile with depth in a 1400 m deep decommissioned mine shaft, (3) air-snow interface temperature profile above a snow-covered glacier, (4) air-water interfacial temperature in a lake, and (5) temperature distribution along a first-order stream. In examples 3 and 4 it is shown that by winding the fiber around a cylinder, vertical spatial resolution of millimeters can be achieved. These tools may be of exceptional utility in observing a broad range of hydrologic processes, including evaporation, infiltration, limnology, and the local and overall energy budget spanning scales from 0.003 to 30,000 m. This range of scales corresponds well with many of the areas of greatest opportunity for discovery in hydrologic science.

Související projekty

• Výzkum přírodních a remediačních procesů a jejich využití pro sanace po těžbě nerostů