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Long-Term Ecological Research (LTER)/AND004: Stream Cross Section Profiles in H.J. Andrews Forest

Listed in NASA Earthdata CMR

LTER - Long-Term Ecological Research Program/H.J. Andrews Forest (AND) LTER/AND004 [Summary adapted from the LTER Core Data Set Catalog]: This study was established to monitor changes in channel geometry (width, depth) in response to storms and movement of large organic debris in a range of stream sizes.

Description

Streams generally have cobble to boulder beds and extensive accumulations of large organic debris both within and marginal to the active channel.

Five sites (Mack Creek clearcut and old growth, lower and middle Lookout, and Cold Creek) are located on the H.J. Andrews Experimental Forest; the other two sites are on north and south forks of Hagen Creek located approximately 15 km west of the Andrews. The Hagen Creek sites were designed to document channel changes following debris removal and streamside logging in the riparian corridor; logging has been indefinitely postponed, however.

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Drainage areas of surveyed streams range from 0.6 to 61.1 km2. Between 11 to 22 cross sections were surveyed at each site using a builder's level and stadia rod. Cross sections were regularly spaced at 20 m at the two Hagen Creek and the Mack Creek clearcut sites and irregularly spaced at the other sites to sample a range of channel environments (pools, riffles).

Cross sections are generally resurveyed annually except in years which did not have significant storms. The Andrews Forest is in the western Cascade Range of Oregon in the 15,800-acre drainage basin of the Lookout Creek, a tributary of Blue River and the McKenzie River. The area elevation ranges from 1350 feet to 5340 feet and contains excellent examples of Pacific Northwest conifer forests, wildlife, and ecosystems.

Information about the Long-Term Ecological Research (LTER) Program can be obtained from: LTER Network Office Email: office@lternet.edu "lternet.edu"

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Provenance · 1 source records, 16 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214153580-SCIOPS15 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
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concepts[measured_variable].gcmd:earth-science/land-surface/erosion-sedimentation/erosionsource · NASA CMRconnector:nasa_cmr@1.0.0
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concepts[measured_variable].gcmd:earth-science/land-surface/erosion-sedimentation/sediment-compositionsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/land-surface/erosion-sedimentation/sediment-transportsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-features/rivers-streamssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-processes-measurements/discharge-flowsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/watershed-characteristicssource · NASA CMRconnector:nasa_cmr@1.0.0
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descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
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