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1,049 results for “height”
Marsh water table height, logging data from the railroad Spartina marsh site on the Parker River for September-December 2001
Measurements of water table height in the Parker River marsh located downstream of the railroad bridge. Measurements were taken every 4 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the railroad site, MAR-PR-Wtable-RR, for September-December 2001.
Marsh water table height, logging data from the Railroad site on the Parker River for September-December 2002
Measurements of water table height in the Parker River marsh located downstream of the railroad bridge. Measurements were taken every 4 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the railroad site, MAR-PR-Wtable-RR, for September-December 2002.
Marsh water table height, logging data from the Typha site on the upper Parker River for June-December 2003
Measurements of water table height in the upper Parker River Typha sp. marsh. Measurements were taken every 10 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the Typha site, MAR-PR-Wtable-T, for June - December 2003.
Marsh water table height, logging data from the Typha site on the upper Parker River for June-August 2001
Measurements of water table height in the upper Parker River Typha sp. marsh. Measurements were taken every 4 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the Typha site, MAR-PR-Wtable-T, for June - August 2001.
Marsh water table height, logging data from the Typha site on the upper Parker River for April-August 2002
Measurements of water table height in the upper Parker River Typha sp. marsh. Measurements were taken every 4 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the Typha site, MAR-PR-Wtable-T, for April - August 2002.
PIE LTER marsh water table height, logging data from the railroad Spartina marsh site on the Parker River, Newbury, MA, for April-November 2016.
Measurements of water table height in the Parker River marsh located downstream of the railroad bridge. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the railroad site, MAR-PR-Wtable-RR for April-November 2016.
PIE LTER marsh water table height, logging data from the Typha marsh site on the upper Parker River, Newbury, MA, for April-November 2016.
Measurements of water table height in the upper Parker River Typha sp. marsh. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the Typha site, MAR-PR-Wtable-T, for April - November 2016
Marsh water table height, logging data from the Typha site on the upper Parker River for September-October 2001
Measurements of water table height in the upper Parker River Typha sp. marsh. Measurements were taken every 4 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the Typha site, MAR-PR-Wtable-T, for September - October 2001.
Marsh water table height, logging data from the Typha site on the upper Parker River for September-December 2002
Measurements of water table height in the upper Parker River Typha sp. marsh. Measurements were taken every 4 minutes at each logger along a transect of water level loggers running perpendicular to the Parker River bank at the Typha site, MAR-PR-Wtable-T, September - December 2002.
Marsh water table height, logging data from the Shad Creek Spartina marsh site for May-October 2017, Rowley, MA, PIE LTER.
Measurements of water table height in the Shad Creek marsh, Rowley, MA, located near the Shad Creek eddy flux tower. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Shad creek stream bank, MAR-RO-Wtable-Shad for May - October 2017.
Marsh water table height, logging data from the Shad Creek Spartina marsh site for April-November 2018, Rowley, MA, PIE LTER.
Measurements of water table height in the Shad Creek marsh, Rowley, MA, located near the Shad Creek eddy flux tower. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Shad creek stream bank, MAR-RO-Wtable-Shad for April-November 2018.
PIE LTER marsh water table height, logging data from the Nelson Island Spartina marsh site, Rowley, MA for May-October 2017.
Measurements of water table height in the Nelson Island marsh located near Nelson Island eddy flux tower. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Nelson stream bank at Nelson Island, Rowley, MA, MAR-RO-Wtable-Nel for May-October 2017.
PIE LTER marsh water table height, logging data from the Nelson Island Spartina marsh site, Rowley, MA for April-November 2018.
Measurements of water table height in the Nelson Island marsh located near Nelson Island eddy flux tower. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Nelson stream bank at Nelson Island, MAR-RO-Wtable-Nel for April-November 2018.
PIE LTER marsh water table height, logging data from the Nelson Island Spartina marsh site for April-November 2019, Rowley, MA.
Measurements of water table height in the Nelson Island marsh located near Nelson Island eddy flux tower, Rowley MA. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Nelson stream bank at Nelson Island, MAR-PR-Wtable-Nel for April-November 2019.
Marsh water table height, logging data from the Shad Creek Spartina marsh site for April-November 2019, Rowley, MA, PIE LTER.
Measurements of water table height in the Shad Creek marsh located near the Shad Creek eddy flux tower, Rowley, MA. Measurements were taken every 5 minutes at each logger along a transect of water level loggers running perpendicular to the Nelson stream bank at Nelson Island, MAR-PR-Wtable-Shad for April-November 2019.
Fiddler crab impacts from observational study 2020-21: Aboveground & diatom biomass, plant height, percent N, burrow & mussel density, belowground biomass, and organic matter
The fiddler crab, Minuca pugnax, expanded its range into the Gulf of Maine recently and was first observed in the Plum Island Estuary in 2014. In 2020 and 2021, we investigated the impact of this burrowing crab on benthic microalgal biomass, sediment properties and the above- and belowground biomass of the cordgrass, Spartina alterniflora. To accomplish this, we conducted a control-impact study in plots with and without fiddler crabs in three marshes in the PIE-LTER: Sawyer, Clubhead, and Metcalf. In its historical range (i.e., south of Cape Cod), M. pugnax, enhances Spartina aboveground biomass. In contrast, we found that, on average, when fiddler crabs were present, aboveground biomass was 40% lower in the PIE-LTER. We also found that belowground biomass was 30% lower and benthic microalgal biomass was 45% lower when fiddler crabs were present, which is in line with our expectations. Because fiddler crabs reduced the biomass of foundational primary producers in its expanded range, our results imply that M. pugnax can influence other saltmarsh functions such as carbon storage and accretion as they expand north. More broadly, our results suggest that as species expand or shift their range with climate change, not only can they have profound impacts in their new ranges, but that those impacts can be the inverse of what is seen in their historical ranges.
Pinon-Juniper Dendrometer, Height, and Crown Area Measurements at Cerro Montosa, Sevilleta National Wildlife Refuge, New Mexico (2006-2009)
Allometry is a standard method of determining biomass and Net Primary Production of many trees. One of the standard variables used in such allometric regressions is bole diameter. On straight trunk trees measurements at breast height (DBH) taken using a DBH tape is adequate for quantifying changes in diameter over time. However, in scrub forests such as the Pinon Juniper PJ woodlands, common on the Sevilleta, both the pinon and particularly the junipers are relatively short and multi-trunked so that measurements must be taken near the ground and the consistency between measurements often lead to erroneous growth analysis. To reduce such discrepancy in readings, dendrometer bands were installed on 20 pinons and 20 junipers in the Cerro Montoso area where understory ANPP has been measured for some time. These dendrometers quantify the expansion (and contraction) of the tree bole through time. The beginning diameter at the time of installation was also measured and recorded. Heights of the 40 trees were also measured. The diameter of the foliage was measured across these trees at the widest point and then again on an axis perpendicular to this first reading. Readings of the dendrometers are repeated on about a monthly basis through the growing season. Heights of the trees are done on an annual basis. Measurements are collected to quantify the increase in bole diameter for a set of Pinons and Junipers in this area over time.
Canopy_height_area2
<p>The canopy height was derived from remote sensing data (Pleiades images) and trees height</p>
Digitised weekly Murrumbidgee river heights southeastern Australia 1874 to 2017 (updated JJA to 31/08/2018)
<p>The aim is to make available online to research institutions, government agencies and the public in general, weekly Murrumbidgee river heights at Hay from November 1873 to June 2017 and now updated for JJA to August 2018. Such a data repository would be a very convenient acquisition that would enhance knowledge of historical stream flow allowing annual and seasonal analysis for climate change in addition to the effect of catchment development on streamflow. <br> <br> <br> </p> <p> </p>
Sea Surface Height (SSH) maps for the California Current System, Jan-May 2018
<p>This is a dataset in netCDF format comprising daily sea surface height maps in the California Current system during between Jan-May 2018, produced by AVISO and 2DVAR, described and analyzed in the research paper:</p> <p>Archer, M., Li, Z., & Fu, L.‐L. (2020). Increasing the space‐time resolution of mapped sea surface height from altimetry. <em>Journal of Geophysical Research: Oceans</em>, 125, e2019JC015878. <a href="https://doi.org/10.1029/2019JC015878">https://doi.org/10.1029/2019JC015878</a></p> <p>Please see metadata and/or paper for more details. </p>
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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