1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System
  3. Dataset 42681

Dataset description: Grain size data from the Carmel River, central California, 2013 to 2021 (ver. 2.0, March 2022)

Pebble-count data were collected during summer surveys (2013, 2015, 2016, 2017, 2018, 2019, 2020, and 2021) at ten sites along the Carmel River, California. Grain-size measurements were made at four to six transects per site using a 0.5 by 0.5 m sampling frame, with approximately 100 sediment-particle counts per transect. Each transect was defined by coordinates on the left and right sides of the river, and sediment grain sizes were measured at five equally spaced locations within the bankfull channel on the transect defined by those endpoint coordinates (see accompanying file within this data release for transect endpoint coordinates). The grain-size data file reports spatial information as being the midpoint of the transect. Grain-size diameters were measured using a gravelometer. We report grain-size values to the next size class up in this spreadsheet, that is, the size gradation that the sediment grain passed through on the gravelometer frame, with the data being analogous to the percent passing in sieve analyses. These data supersede grain-size data originally published in 2017 at https://doi.org/10.5066/F74M93HF.
Version2
Keywordsriver reaches, river systems, sieve-size analysis, field inventory and monitoring, grain-size analysis, gravel deposits, inland fishery resources
Data typesGeology
Formatcomma-delimited text
Amount0.033 MB

Contacts

Contact
Amy East
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Location of materials and files

Public files
Metadatahttps://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/ScienceBase/DR_P9HG8UDS/Carmel_2013to2021_GrainSize_metadata.xml
Outline - Questions and answers - Text - XML

Activities and equipment

ActivityEquipment
2014-643-FATotalstation
2015-638-FAtotalstation
2016-638-FAtotalstation
2017-635-FAtotalstation
2019-631-FAtotalstation
L2513CAtopographic equipment