Method for identifying anomalous terrestrial heat flows
Abstract
A method for locating and mapping the magnitude and extent of terrestrial heat-flow anomalies from 5 to 50 times average with a tenfold improved sensitivity over orthodox applications of aerial temperature-sensing surveys as used for geothermal reconnaissance. The method remotely senses surface temperature anomalies such as occur from geothermal resources or oxidizing ore bodies by: measuring the spectral, spatial, statistical, thermal, and temporal features characterizing infrared radiation emitted by natural terrestrial surfaces; deriving from these measurements the true surface temperature with uncertainties as small as 0.05 to 0.5 K; removing effects related to natural temperature variations of topographic, hydrologic, or meteoric origin, the surface composition, detector noise, and atmospheric conditions; factoring out the ambient normal-surface temperature for non-thermally enhanced areas surveyed under otherwise identical environmental conditions; distinguishing significant residual temperature enhancements characteristic of anomalous heat flows and mapping the extent and magnitude of anomalous heat flows where they occur.
- Inventors:
-
- San Leandro, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 862754
- Patent Number(s):
- 4005289
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; identifying; anomalous; terrestrial; heat; flows; locating; mapping; magnitude; extent; heat-flow; anomalies; 50; times; average; tenfold; improved; sensitivity; orthodox; applications; aerial; temperature-sensing; surveys; geothermal; reconnaissance; remotely; senses; surface; temperature; occur; resources; oxidizing; bodies; measuring; spectral; spatial; statistical; thermal; temporal; features; characterizing; infrared; radiation; emitted; natural; surfaces; deriving; measurements; true; uncertainties; 05; removing; effects; related; variations; topographic; hydrologic; meteoric; origin; composition; detector; noise; atmospheric; conditions; factoring; ambient; normal-surface; non-thermally; enhanced; surveyed; otherwise; identical; environmental; distinguishing; significant; residual; enhancements; characteristic; improved sensitivity; temperature variations; heat flow; infrared radiation; radiation emitted; environmental conditions; surface temperature; temperature variation; heat flows; atmospheric conditions; thermally enhanced; terrestrial heat; /250/
Citation Formats
Del Grande, Nancy Kerr. Method for identifying anomalous terrestrial heat flows. United States: N. p., 1977.
Web.
Del Grande, Nancy Kerr. Method for identifying anomalous terrestrial heat flows. United States.
Del Grande, Nancy Kerr. Tue .
"Method for identifying anomalous terrestrial heat flows". United States. https://www.osti.gov/servlets/purl/862754.
@article{osti_862754,
title = {Method for identifying anomalous terrestrial heat flows},
author = {Del Grande, Nancy Kerr},
abstractNote = {A method for locating and mapping the magnitude and extent of terrestrial heat-flow anomalies from 5 to 50 times average with a tenfold improved sensitivity over orthodox applications of aerial temperature-sensing surveys as used for geothermal reconnaissance. The method remotely senses surface temperature anomalies such as occur from geothermal resources or oxidizing ore bodies by: measuring the spectral, spatial, statistical, thermal, and temporal features characterizing infrared radiation emitted by natural terrestrial surfaces; deriving from these measurements the true surface temperature with uncertainties as small as 0.05 to 0.5 K; removing effects related to natural temperature variations of topographic, hydrologic, or meteoric origin, the surface composition, detector noise, and atmospheric conditions; factoring out the ambient normal-surface temperature for non-thermally enhanced areas surveyed under otherwise identical environmental conditions; distinguishing significant residual temperature enhancements characteristic of anomalous heat flows and mapping the extent and magnitude of anomalous heat flows where they occur.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 25 00:00:00 EST 1977},
month = {Tue Jan 25 00:00:00 EST 1977}
}