NCEI Geothermal Database

Geothermics is the study of heat generated in Earth's interior and its manifestation at the surface. The NOAA National Centers for Environmental Information has a variety of publications and data sets which provide information on the location, magnitude, and potential uses of geothermal resources. The publication, "Thermal Springs List for the United States" (1981) is a compilation of 1,700 thermal springs locations in 23 states. The list gives the geographic locations of thermal springs by state, and is sorted by degrees of latitude and longitude within the state. It contains the name of each spring (where available), maximum surface temperature (in both degrees Fahrenheit and degrees Celsius), name of corresponding USGS 1:2,500,000-scale (AMS) map, largest scale USGS topographic map coverage available (either 7.5 or 15-min. quadrangle), and cross-references. Thermal springs listed include natural surface hydrothermal features (springs, pools, mud pots, mud volcanoes, geysers, fumaroles, and steam vents) at temperatures of 20 degrees Celsius (68 degrees Fahrenheit) or higher. They do not include wells or mines, except at sites where they supplement or replace natural vents that have been active recently or at sites where orifices are indistinguishable as natural or artificial. The thermal springs data from this publication are also available on-line."Geothermal Gradient Map of the United States" (1982) shows 1,700 wells, with accompanying heat flow and conductivity data. This map was produced in cooperation with Los Alamos National Laboratory. Thermal aspect data (1991) from the Decade of North American Geology project, are available on diskette. These data were compiled by Dr. David Blackwell of Southern Methodist University. Global heat flow data (1993) were compiled by Dr. Henry Pollack of the University of Michigan. Data were collected through the World Heat Flow Committee of the International Council of Scientific Unions. These are available on-line.

地热学（Geothermics）是研究地球内部产生的热量及其在地表表现形式的学科。NOAA国家环境信息中心（NOAA National Centers for Environmental Information）拥有多种出版物与数据集，可提供地热资源的分布、规模及潜在利用价值相关信息。其1981年发布的出版物《美国温泉名录》（Thermal Springs List for the United States）汇编了全美23个州共计1700处温泉的分布信息。该名录按州分类标注温泉的地理坐标，并在各州内部以经纬度排序。其中包含各温泉的名称（如有记录）、最高地表温度（以华氏度与摄氏度双标）、对应美国地质调查局（United States Geological Survey, USGS）1:250万（AMS）比例尺地图的编号、可供获取的最大比例尺USGS地形图图幅（涵盖7.5分钟或15分钟幅），以及交叉引用信息。收录的温泉均为温度不低于20℃（68℉）的天然地表热液特征，包括温泉、热池、泥泉、泥火山、间歇泉、喷气孔与蒸汽喷口。该名录不包含人工钻井或矿井，仅在以下情况除外：钻井或矿井可补充或替代近期仍活跃的天然喷口，或该喷口无法区分天然与人工成因。该出版物中的温泉数据亦可在线获取。
其1982年发布的《美国地热梯度图》（Geothermal Gradient Map of the United States）收录了1700口钻井的数据，并附带热流与导热率相关参数。该图由洛斯阿拉莫斯国家实验室（Los Alamos National Laboratory）合作编制。北美地质十年计划（Decade of North American Geology）于1991年发布的热特征数据可通过软盘获取，该数据集由南卫理公会大学戴维·布莱克韦尔博士汇编。
密歇根大学亨利·波拉克博士于1993年汇编的全球热流数据，依托国际科学联合会（International Council of Scientific Unions）下属的世界热流委员会（World Heat Flow Committee）收集所得，亦可在线获取。