Marker Horizon Data at the Nisqually River Delta, Washington
Description
SET-MH were installed in 2009 and 2010 with three replicates in Reference and Phase II and with two replicates (north-south) pairs in the 2009 restoration area (Units 1-4). SET-MH were read repeatedly at regular, at least annual intervals. Reading SETs consisted of measurements for nine pins facing the four cardinal directions for a total of 36 measurements per SET, per sampling event. Marker Horizons consisted of a marker, usually white feldspar clay, so that the sediment that accumulated on top of the marker would be visible and measurable to the nearest millimeter. Together, SET-MH provide information on surface elevation changes due to surface accretion (MH) compared to changes that may be due to subsurface processes (such as root growth or groundwater swelling).
Resources
| Name |
Format |
Description |
Link |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9R0HL3R |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.671acd98d34efed5620fd160.xml |
Tags
- environment
- emergent-tidal-marsh
- ecology
- salt-marsh
- usgs-671acd98d34efed5620fd160
- elevation
- wetland-ecosystems
- land-surveying
- puget-sound