Grain Size Data Collected Along the Totatlanika River, Alaska, August 2021

Identification_Information:

Citation:

Citation_Information:

Originator: Bender, Adrian M. (ORCID: 0000-0001-7469-1957)
Publication_Date: 20230616
Title:

Geospatial_Data_Presentation_Form: vector digital data and tabular digital data
Series_Information:

Series_Name:

Sediment Transport Data from the Totatlanika River, Alaska, August 2021

Issue_Identification: .

Publication_Information:

Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center

Other_Citation_Details:

Suggested Citation: Bender, A.M., 2023, Sediment transport data from the Totatlanika River, Alaska, August 2021: U.S. Geological Survey data release, https://doi.org/10.5066/F7X63KF2

Online_Linkage: https://doi.org/10.5066/F7X63KF2
Larger_Work_Citation:

Citation_Information:

Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 2020
Title:

Geological framework, metallogeny, and critical mineral potential of the broader Yukon-Tanana upland, Alaska

Geospatial_Data_Presentation_Form: website
Series_Information:

Series_Name: Alaska Science Portal
Issue_Identification: 436

Publication_Information:

Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center

Other_Citation_Details:

This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.

Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=436

Description:

Abstract:

This dataset provides scaled and geotagged digital photographs of river sediment acquired in August 2021 at 21 sites along the Totatlanika River in central Alaska, and tabular sediment grain size data derived from the photographs.

Purpose:

This dataset was acquired for the purpose of quantifying grain size distributions along the Totatlanika River, which drains the minerally endowed and tectonically active northern Alaska Range. The derivative grain size data can be used to understand sediment transport and landscape processes in this system.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20210802
Ending_Date: 20210805

Currentness_Reference: observed

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -148.8700
East_Bounding_Coordinate: -148.3500
North_Bounding_Coordinate: 64.2400
South_Bounding_Coordinate: 63.9500

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC542

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keyword Thesaurus
Theme_Keyword: Land Surface
Theme_Keyword: Geomorphic Landforms/Processes
Theme_Keyword: Tectonic Processes
Theme_Keyword: Tectonic Landforms
Theme_Keyword: Tectonic Uplift
Theme_Keyword: Mountains
Theme_Keyword: Orogenic Movement

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Geomorphology
Theme_Keyword: Topography
Theme_Keyword: Geospatial Datasets
Theme_Keyword: Land surface characteristics
Theme_Keyword: Tectonic processes

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Totatlanika River
Place_Keyword: California Creek
Place_Keyword: Buzzard Creek
Place_Keyword: Alaska Range
Place_Keyword: Alaska

Access_Constraints: None
Use_Constraints:

It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications that reference this dataset.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center

Contact_Address:

Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Data_Set_Credit:

Adrian Bender (USGS) conducted the work described herein to produce this dataset. Field assistance by USGS colleague Richard Lease, technical reviews by USGS colleagues Keith Labay and John Reed.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Real-world location accuracy of the photographs is expected to be within 5 meters. The photos are expected to accurately depict real-world sediment grain sizes to the millimeter scale. Tests between field and photographically measured river sediment indicates consistency with negligible uncertainty. Each photo in this data release archives a unique ground area without overlapping or repeating other photos such that size measurements are not erroneously repeated for a particular grain. Photos plot in the approximate 5 meter vicinity of the map location of collection based on visual inspection in a GIS, consistent with expected horizontal positional accuracy.

Logical_Consistency_Report: Attribute values fall within expected ranges.
Completeness_Report:

The photos were collected on downstream traverses ranging from 41 to 292 meters long, at 21 sites spanning approximately 60 km between the headwaters and northern Alaska Range front along the Totatlanika River. Sites were selected based on evenness of downstream spacing, bed exposure, and helicopter accessibility. At each site, photos were typically collected 1–2 meters apart; none of the photos overlap. All grain sizes measured in the photos at each site are included in tables labeled by site.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal accuracy of the photographs is expected to be within 5 meters.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Schneider, C.,
Originator: Rasband, W.
Originator: Eliceiri, K.
Publication_Date: 2012
Title: NIH Image to ImageJ: 25 Years of Image Analysis
Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Nature Methods
Issue_Identification: 9:671–675

Publication_Information:

Publication_Place: online
Publisher: Springer Nature

Other_Citation_Details:

Schneider, C., Rasband, W. Eliceiri, K., 2012. NIH Image to ImageJ: 25 years of image analysis. Nature Methods 9:671–675. doi:10.1038/nmeth.2089

Online_Linkage: https://doi.org/10.1038/nmeth.2089

Type_of_Source_Media: publication
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Schneider et al 2012
Source_Contribution: Describes image analysis software ImageJ.

Process_Step:

Process_Description:

Digital photos were acquired in the field from 2 August 2021 to 5 August 2021 during a period of low water that provided ample bed and bank exposure. At 21 different sites along the river, scaled and geotagged photographs were acquired using a Canon EOS 6D Mark II on riverbank traverses ranging from 41 to 292 meters in downstream length

Process_Date: 20210805

Process_Step:

Process_Description:

Using the image analysis software ImageJ (Schneider et al., 2012), photos were digitally scaled and overlaid with a regular grid of 0.5 or 1.0 m depending on the size of the photographed area, which generally varied between 1 and 4 square m. Clasts (millimeter-scale pebbles, cobbles, or boulders up to meter-scale) at or nearest to the intersection of each grid cell were measured on the shorter of two visible axes, assumed to represent the intermediate axis, or b-axis, of each measured grain. A minimum of 100 clasts were measured along each traverse, producing a total of 5750 measurements across the 21 sites. The ImageJ workflow produced a map of serially numbered measured grains from each photo, and a spreadsheet containing mapped grain number, original photo file name, and b-axis measurement length.

Process_Date: 20220501

Process_Step:

Process_Description:

Grain size distribution statistics were computed in MATLAB (Mathworks, Natick, MA) for each site based on the measurements conducted in ImageJ. This involved computing the median and 84th percentile of size measurements for each site. The median and 84th percentile represent the grain size coarser than 50% and 84% of grains measured at the site, respectively. These statistics are termed the D50 and D84, and are used for modeling bed shear stress, flow resistance, and sediment transport thresholds.

Process_Date: 20220601

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 763

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: GCS NAD83 2011
Ellipsoid_Name: GRS80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 10
Altitude_Distance_Units: meter
Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: grainstats.csv
Entity_Type_Definition:

Table with location and size statistics derived from the sediment size measurements and photo locations.Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: site
Attribute_Definition:

Unique site identifier of sampling sites; consisting of a year (21 = 2021), a location (TOT = Totatlanika River), and a numeric identifier (e.g., 14).

The five sites (21TOT11, 21TOT15, 21TOT18, 21TOT19, and 21TOT25) were omitted because they occupied for other purposes (e.g., geochronology sample collection) and are not associated with grain size measurements.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique site identifier of sampling sites.

Attribute:

Attribute_Label: centLat
Attribute_Definition: Latitude of downstream survey site midpoint in decimal degrees.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 63.9760
Range_Domain_Maximum: 64.2278
Attribute_Units_of_Measure: Decimal degrees.
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: centLong
Attribute_Definition:

Longitude of downstream survey site midpoint in decimal degrees.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -148.7687
Range_Domain_Maximum: -148.4129
Attribute_Units_of_Measure: Decimal degrees.
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: survLength_m
Attribute_Definition: Length of downstream survey at labeled site in meters.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 41
Range_Domain_Maximum: 292
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 10

Attribute:

Attribute_Label: n_photos
Attribute_Definition: Number of photos measured at site.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 16
Range_Domain_Maximum: 63
Attribute_Units_of_Measure: Photos
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: n_grains
Attribute_Definition: Number of grains measured at site.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 100
Range_Domain_Maximum: 423
Attribute_Units_of_Measure: Grains
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: d50_cm
Attribute_Definition: Median of grain sizes in centimeters measured at site.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.7
Range_Domain_Maximum: 6.7
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: d84_cm
Attribute_Definition:

The grain size coarser than 84% of grains measured at site (i.e., 84th percentile) in centimeters.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.5
Range_Domain_Maximum: 30.4
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: min_cm
Attribute_Definition: Minimum measured grain size in centimeters.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.14
Range_Domain_Maximum: 0.48
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: max_cm
Attribute_Definition: Maximum measured grain size in centimeters.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 16.56
Range_Domain_Maximum: 179.10
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.01

Detailed_Description:

Entity_Type:

Entity_Type_Label: tables
Entity_Type_Definition:

The folder "tables" contains csv files, named by site of photographic grain size measurement data collected using ImageJ software.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: label
Attribute_Definition:

The serial number of the measured grain. This number labels the measured grain in the annotated photo in the folder "photos>SITE>meas" where SITE matches the name of the csv file.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

This is a numerical field with a minimum value of 1 at every site, and maxima that vary from 100 to 423 between sites.

Attribute:

Attribute_Label: photo
Attribute_Definition:

File name of the photo on which the measurements were collected in ImageJ software. The un-annotated, geotagged photo is located in the folder "photos>SITE>raw" where SITE matches the name of the csv file. The annotated copy of the measured photo with the same name appended "_meas" in the folder "photos>SITE>meas" where site matches the name of the csv file shows the measured grain by label.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Field contains file names of photos automatically assigned in sequential order of acquisition. Multiple entries of the same photo file name reflect multiple grain measurements on the same photo.

Attribute:

Attribute_Label: length_cm
Attribute_Definition:

Length of the intermediate axis (i.e., shortest of two visible axes) of grain measured in ImageJ.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

This is a numeric field with minima and maxima that vary between sites. Minima range from 0.14 cm to 0.48 cm. Maxima range from 16.56 cm to 179.10 cm.

Detailed_Description:

Entity_Type:

Entity_Type_Label: photos
Entity_Type_Definition:

The folder "photos" contains sub-folders named by field site. The site sub-folders each contain sub-folders of photos named "raw" and "meas". The folder "raw" contains un-annotated geotagged photos in jpeg format which can be displayed as points on a map in a geographic information system. The folder "meas" contains annotated png format copies of the photos output from ImageJ. Photo files in the "meas" folder have the same name as the photos in the "raw" folder, but are appended "_meas". Annotations on the photos in the "meas" folder include a regular grid, a line representing the measured grain b-axis, and a number labeling the measured grain.

Entity_Type_Definition_Source: Author defined

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center

Contact_Address:

Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Resource_Description:

The U.S. Geological Survey, Alaska Science Center is the authoritative source and distributor of these data.

Distribution_Liability:

Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF
Format_Version_Number: Unknown
Format_Specification: GeoTIFF
Format_Information_Content:

Data are distributed in a Zip package containing images in TIFF format (single band [elevation] and four-band [RGB color map] rasters; LZW compression) and FGDC metadata in XML and HTML formats.

File_Decompression_Technique:

Compression applied by the 7-Zip utility using the default compression level [5]. The Zip package can be decompressed and unpacked by open source or commercially available unzip tools.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://doi.org/10.5066/F7X63KF2

Fees: None

Technical_Prerequisites:

It is recommended that a geographic information system or other native GeoTIFF viewer be used to view the elevation raster.

Grain Size Data Collected Along the Totatlanika River, Alaska, August 2021

Metadata: