@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/36792385-9e44-4dc5-96b5-8136ac2aeafc> a dcat:Dataset ;
    dct:description """AASG Wells Data for the EGS Test Site Planning and Analysis Task
Temperature measurement data obtained from boreholes for the Association of American State Geologists (AASG) geothermal data project. Typically bottomhole temperatures are recorded from log headers, and this information is provided through a borehole temperature observation service for each state. Service includes header records, well logs, temperature measurements, and other information for each borehole. Information presented in Geothermal Prospector was derived from data aggregated from the borehole temperature observations for all states. For each observation, the given well location was recorded and the best available well identifier (name), temperature and depth were chosen. The "Well Name Source," "Temp. Type" and "Depth Type" attributes indicate the field used from the original service. This data was then cleaned and converted to consistent units. The accuracy of the observation's location, name, temperature or depth was note assessed beyond that originally provided by the service. 

-	AASG bottom hole temperature datasets were downloaded from repository.usgin.org between the dates of May 16th and May 24th, 2013.
-	Datasets were cleaned to remove null and non-real entries, and data converted into consistent units across all datasets
-	Methodology for selecting best temperature and depth attributes from column headers in AASG BHT Data sets:

Temperature:
	CorrectedTemperature - best
	MeasuredTemperature - next best
Depth:
	DepthOfMeasurement - best
	TrueVerticalDepth - next best
	DrillerTotalDepth - last option
Well Name/Identifier:
	APINo - best
	WellName - next best
	ObservationURI - last option 

The column headers are as follows:
gid = internal unique ID
src_state = the state from which the well was downloaded (note: the low temperature wells in Idaho are coded as "ID_LowTemp", while all other wells are simply the two character state abbreviation)
source_url = the url for  the source WFS service or Excel file
temp_c = "best" temperature in Celsius
temp_type = indicates whether temp_c  comes from the corrected or measured temperature header column in the source document
depth_m = "best" depth in meters
depth_type = indicates whether depth_m  comes from the measured, true vertical, or driller total depth header column in the source document
well_name = "best" well name or ID
name_src = indicates whether well_name came from apino, wellname, or observationuri header column in the source document
lat_wgs84 = latitude in wgs84
lon_wgs84 = longitude in wgs84
state = state in which the point is located
county = county in which the point is located""" ;
    dct:identifier <https://data.openei.org/submissions/3097> ;
    dct:issued "2013-10-09T06:00:00+00:00"^^xsd:dateTime ;
    dct:modified "2021-08-19T20:07:58+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-125.1877 31.2600, -106.5660 31.2600, -106.5660 48.9761, -125.1877 48.9761, -125.1877 31.2600))"^^gsp:wktLiteral ] ;
    dct:title "AASG Wells Data for the EGS Test Site Planning and Analysis Task" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Chad Augustine" ;
            vcard:hasEmail <mailto:Chad.Augustine@nrel.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/36792385-9e44-4dc5-96b5-8136ac2aeafc/resource/a9c7b4b3-7c76-43b7-afe4-3fbf420fd962> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "borehole",
        "borehole-temperature",
        "bottomhole",
        "ckan",
        "data",
        "egs",
        "egs-test-site",
        "geo",
        "geospatial-data",
        "geoss",
        "geothermal",
        "national",
        "north-america",
        "shp",
        "temperature",
        "united-states",
        "well" .

<https://data.amerigeoss.org/dataset/36792385-9e44-4dc5-96b5-8136ac2aeafc/resource/a9c7b4b3-7c76-43b7-afe4-3fbf420fd962> a dcat:Distribution ;
    dct:description """AASG Wells Data for the EGS Test Site Planning and Analysis Task
Temperature measurement data obtained from boreholes for the Association of American State Geologists (AASG) geothermal data project. Typically bottomhole temperatures are recorded from log headers, and this information is provided through a borehole temperature observation service for each state. Service includes header records, well logs, temperature measurements, and other information for each borehole. Information presented in Geothermal Prospector was derived from data aggregated from the borehole temperature observations for all states. For each observation, the given well location was recorded and the best available well identified (name), temperature and depth were chosen. The “Well Name Source,” “Temp. Type” and “Depth Type” attributes indicate the field used from the original service. This data was then cleaned and converted to consistent units. The accuracy of the observation’s location, name, temperature or depth was note assessed beyond that originally provided by the service. 
 
-	AASG bottom hole temperature datasets were downloaded from repository.usgin.org between the dates of May 16th and May 24th, 2013.
-	Datasets were cleaned to remove “null” and non-real entries, and data converted into consistent units across all datasets
-	Methodology for selecting ”best” temperature and depth attributes from column headers in AASG BHT Data sets:

•	Temperature:
•	CorrectedTemperature – best
•	MeasuredTemperature – next best
•	Depth:
•	DepthOfMeasurement – best
•	TrueVerticalDepth – next best
•	DrillerTotalDepth – last option
•	Well Name/Identifier
•	APINo – best
•	WellName – next best
•	ObservationURI  - last option. 

The column headers are as follows:

•	gid = internal unique ID

•	src_state = the state from which the well was downloaded (note: the low temperature wells in Idaho are coded as “ID_LowTemp”, while all other wells are simply the two character state abbreviation)

•	source_url = the url for  the source WFS service or Excel file

•	temp_c = “best” temperature in Celsius

•	temp_type = indicates whether temp_c  comes from the corrected or measured temperature header column in the source document

•	depth_m = “best” depth in meters

•	depth_type = indicates whether depth_m  comes from the measured, true vertical, or driller total depth header column in the source document

•	well_name = “best” well name or ID

•	name_src = indicates whether well_name came from apino, wellname, or observationuri header column in the source document

•	lat_wgs84 = latitude in wgs84

•	lon_wgs84 = longitude in wgs84

•	state = state in which the point is located

•	county = county in which the point is located
""" ;
    dct:format "ZIP" ;
    dct:issued "2021-06-24T00:07:21.439586"^^xsd:dateTime ;
    dct:modified "2025-11-20T23:19:43.040293"^^xsd:dateTime ;
    dct:title "aasg_geothermal_boreholes.zip" ;
    dcat:accessURL <https://gdr.openei.org/files/252/aasg_geothermal_boreholes%20%282%29.zip> ;
    dcat:mediaType "application/zip" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .

