Data · collection · 1997
Stream Channel Reference Sites:Channel Morphometry/Water Chemistry Monitoring Protocol for the Long-term Monitoring Program at Denali National Park and Preserve
Listed in NASA Earthdata CMR
Compilation of protocols for the sampling and analyses of aquatic systems in Denali National Park and Preserve's long-term ecological monitoring (LTEM) program.
Description
The aquatic systems monitoring program may be separated into three components: Stream Hydrology, Water Chemistry, and Aquatic Biology. Stream hydrology includes physical measurements such as stream discharge, gaging station operations, suspended sediment and turbidity measurements, channel morphometry surveys, and bed material classification.
The water chemistry measurements include major ions, nutrients, pH, alkalinity, and conductivity. The aquatic biological component includes benthic invertebrate collection. Protocols for benthic invertebrate collection are documented in a separate manual.
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Geographic Description: Rock Creek Watershed in Denali National Park and Preserve. Denali National Park and Preserve is located in the central Alaska Range, approximately 210 km southwest of Fairbanks, Alaska. Methodology: Channel morphometry should be measured to track both short-term and long-term changes in channel and floodplain cross-sections and slopes.
Placing a permanent, benchmarked reference site is the first step in accomplishing long-term monitoring of this type. Measurements should take place every one to two years, preferably within the same month each year. In Denali National Park, early to mid August presents an ideal time for this.
The procedure to accurately characterize stream channel and floodplain changes consists of the following: 1. Select a site. 2. Map the site and location. 3.
Measure the channel cross-section. 4. Survey a longitudinal profile of the channel. 5. Measure stream fllow. 6.
Measure bed material. 7. Permanently file the information.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214607512-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214607512-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Discharge/Flow · Not provided
- Inferred from text
- Longitudinal study 65%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214607512-SCIOPS | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-processes-measurements/discharge-flow | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[method].local:method:longitudinal-study | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |