ItemInfo

Item Information

snippet:	This point feature class shows the location of gravity base stations that have existed in Washington state. While observed gravity (on ISGN71 datum) is listed as well as other data pertaining to location and quality, WGS does not posses the precise position descriptions needed to reoccupy many of the stations. Stations where status and location are known are listed with much more thorough information in our Gravity Base Station layer. If you have information on the status and/or precise location of any of these stations, WGS staff would greatly appreciate hearing from you.
summary:	This point feature class shows the location of gravity base stations that have existed in Washington state. While observed gravity (on ISGN71 datum) is listed as well as other data pertaining to location and quality, WGS does not posses the precise position descriptions needed to reoccupy many of the stations. Stations where status and location are known are listed with much more thorough information in our Gravity Base Station layer. If you have information on the status and/or precise location of any of these stations, WGS staff would greatly appreciate hearing from you.
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description:	<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>A gravity base station is a point on Earth's surface where the absolute value of gravity is well known. Gravity base stations are established to tie relative gravity measurements to an accepted gravity value that has been determined through the use of an absolute gravimeter, or repeated relative measurements to another established base station. They are sometimes also used to measure changes in Earth's gravity over time. Scientists can use repeated measurements at established gravity base stations during the course of a relative gravity survey to determine, account for, and remove instrument drift from relative gravity measurements. he dataset used to create this layer was obtained through the GeoNet Gravity Dataset Repository that was developed by the Pan American Center for Earth & Environmental Studies (PACES). The data incorporated into this database was originally derived from a variety of sources including the National Geospatial Agency (NGA), National Geodetic Survey (NGS), Defense Mapping Agency (DMA), and the USGS.</SPAN></P></DIV></DIV></DIV>
licenseInfo:	<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Disclaimer of Warranties</SPAN></P><P><SPAN>No express or implied warranty of any kind is made regarding the digital information contained herein, including, but not limited to, the warranty of merchantability, warranty of fitness for a particular purpose, or warranties of content, completeness, accuracy, reliability, usefulness, or that use would not infringe on privately-owned rights. Although these digital data and metadata have been processed successfully on computers of WGS, no warranty, expressed or implied, is made by WGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.</SPAN></P><P><SPAN /></P><P><SPAN>Use at Your Own Risk</SPAN></P><P><SPAN>The information presented here is intended for use as a general screening tool in community planning or for creating awareness and understanding of geologic information and is neither intended to constitute advice nor is it to be used as a substitute for site-specific advice from a licensed professional. You use this information at your own risk and should not act (or refrain from acting) based upon the information without independently verifying the information and, as appropriate, obtaining professional advice regarding your particular facts and circumstances.</SPAN></P><P><SPAN /></P><P><SPAN>Limitation on Liability</SPAN></P><P><SPAN>User agrees there shall not be liability on the State of Washington, Washington Department of Natural Resources, or their officers, agents, representatives, or employees for any damages allegedly resulting from any use of or reliance on this information. Under this limitation, there shall be no liability for any damages whatsoever, including but not limited to any damages in contract or tort for compensatory, consequential, punitive, direct, indirect, or special damages such as personal injuries, property damage, loss of profits, or any other losses or expenses.</SPAN></P><P><SPAN /></P><P><SPAN>No Endorsement</SPAN></P><P><SPAN>Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement, recommendation, or favoring. Further, the views and opinions of authors expressed herein do not necessarily state or reflect those of the State of Washington or any agency thereof.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>, <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The Washington Geological Survey (WGS) shall not be held liable for improper or incorrect use of the data described and/or contained herein. This product is provided 'as is' without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular use. The Washington State Department of Natural Resources and the authors of this product will not be liable to the user of this product for any activity involving the product with respect to the following: (a) lost profits, lost savings, or any other consequential damages; (b) the fitness of the product for a particular purpose; or (c) use of the product or results obtained from use of the product. Although these data have been processed successfully on computers of WGS, no warranty, expressed or implied, is made by WGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.</SPAN></P></DIV></DIV>
catalogPath:
title:	Historical Gravity Base Stations Unknown Status
type:
url:
tags:	["gravity meters","density","elevation","observed gravity","theoretical gravity","terrain correction","bouguer correction","curvature correction","free air correction","complete bouguer anomaly","isostatic correction"]
culture:	en-US
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minScale:	150000000
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