3,131 Works

Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 2003.

Anne Giblin, Christopher Luecke & George Kling
Note this file was updated and combined into Decadal file http://dx.doi.org/10.6073/pasta/c964a186ed5a58270602ea44f8c3927b Yearly file describing the physical/chemical values recorded at various lakes near Toolik Research Station. Sample site descriptors include site, date, time, depth. Depth profiles of physical measures collected in situwith Hydrolab Datasonde in the field include temperature, conductivity, pH, dissolved oxygen in both percent saturation and mg/l, SCUFA chlorophyll-a values in both volts and µg/l, and PAR.

AVHRR/Landsat TM Classifed images at 1km and 25km grain size centered on Bonanza Creek LTER

Dave L. Verbyla & Bonanza Creek LTER
AVHRR/Landsat TM Classifed images at 1km and 25km grain size centered on Bonanza Creek LTER

Lake Sunapee High Frequency Weather Data measured on buoy - 2007-2017

LSPA, Bethel Steele & Kathleen C. Weathers
The Lake Sunapee instrumented buoy is equipped with a LICord Li19SB PAR sensor (2007-present), an air temperature sensor (HMP50 Vaisala, 2010-present), a wind speed/direction sensor (WMT50 Vaisala, 2010-present). Precise air temperature and wind sensor equipment unknown prior to 2010. These data have been QAQC'd to remove obviously errant readings, highly suspicious readings and artifacts of buoy maintenance. The buoy is also equipped with below-water surface sensors comprised of thermistors, DO sensors, chlorophyll-a and conductivity sensors....

CGR05 Effects of fire frequency on composition of grasshopper assemblages (1983)

Anthony Joern
Sweep samples were taken for grasshoppers (Acrididae) at two sites for each of 14 Konza Prairie LTER watersheds. Samples are taken in late July to early August. At each site on each occasion, 10 sets of 20 sweeps (200 sweeps total) are taken. Stored data include for each site on each occasion: total number of each species (all instars combined) collected and total number for each instar for each species (200 sweeps combined).

Continuous salinity, temperature and depth measurements from moored hydrographic data loggers deployed at GCE9_Hydro (Altamaha River near Rockdedundy Island, Georgia) from 01-Jan-2016 through 31-Dec-2016

Georgia Coastal Ecosystems LTER Project & Daniela Di Iorio
Conductivity, temperature and pressure were measured continuously at Georgia Coastal Ecosystems LTER sampling location GCE9_Hydro (Altamaha River near Rockdedundy Island, Georgia) from 01-Jan-2016 through 31-Dec-2016. Observations were logged at 30 minute intervals by moored Sea-Bird Electronics MicroCAT 37-SM data loggers and downloaded approximately semi-monthly. Salinity, depth and sigma-t (density anomaly) were calculated from the measured parameters using standard UNESCO algorithms. This data set was collected as part of the GCE-LTER Project continuous salinity, temperature and...

Desert Fertilization Experiment: investigation of Sonoran desert ecosystem response to atmospheric deposition and experimental nutrient addition, ongoing since 2006

Jonathan Allen, Nancy Grimm, Sharon Hall & Jason Kaye
Launched in 2006 with support from the National Science Foundation (NSF) and leveraged by the CAP LTER, the Carbon and Nitrogen deposition (CNdep) project sought to answer the fundamental question of whether elemental cycles in urban ecosystems are qualitatively different from those in non-urban ecosystems. Ecosystem scientists, atmospheric chemists, and biogeochemists tested the hypothesis that distinct biogeochemical pathways result from elevated inorganic nitrogen and organic carbon deposition from the atmosphere to the land. To test...

Aboveground biomass at control and fertilized plots in a Spartina patens-dominated marsh, Rowley River, Plum Island Ecosystem LTER, MA.

Jim Morris, Karen Sundberg & Plum Island Ecosystems LTER
Aboveground biomass is determined destructively during the growing season at a Spartina patens salt marsh on the Rowley River within the Plum Island Ecosystems (PIE) LTER site.

Stream metabolism data for core sites in Gwynns Falls: high temporal frequency (5-10min resolution) measurements of dissolved oxygen, photosynthetically active radiation, temperature, discharge and depth.

Cary Institute Of Ecosystem Studies, Alexander Reisinger & Emma Rosi
An ongoing component of the Baltimore urban long-term ecological research (LTER) project (Baltimore Ecosystem Study, BES) is the use of the watershed approach and monitoring of stream water quality to evaluate the integrated ecosystem functioning of Baltimore. The LTER research has focused on the Gwynns Falls watershed, which spans a gradient from highly urban, urban-residential, and suburban zones. In addition, a forested watershed serves as a reference. The long-term sampling network includes four longitudinal sampling...

Horizontal sediment mass flux before & after the windy season from vegetation removal plots(Sediment weight at various heights)

Dale Gillette
Dataset consists of horizontal dust flux at multiple heights from BSNE dust collectors located in treatment plots (different percent vegetation removed) and adjacent downwind effect plots. Year 2008 was an annual collection. Collection in subsequent years occurred before and after the wind season. The experiment was designed to test the effects of increasing wind erosion on soil and vegetation properties at the Jornada. In order to increase wind erosion rates, vegetation was removed to increase...

Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating and Drying Research (DryPEHR): Seasonal water table depth data, 2011-2017

Christina Schaedel, Susan M.N. Natali, Edward A.G. Schuur, Meghan Taylor, Marguerite Mauritz, Justin Ledman & Bonanza Creek LTER
This drying and warming experiment addresses the following questions: 1) Does ecosystem drying, warming and permafrost thaw cause a net release or uptake of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C that comprises the bulk of the soil C pool influence ecosystem C loss? 3) How do drying and warmign affect plant communities and ecosystem properties? We are answering these questions using a combined warming and drying experiment...

Response of Lake Baikal periphyton to nutrient enrichment at 10 sites across a land use gradient: Results from a nutrient diffusing substrata (NDS) experiment

Ted Ozersky, Ekaterina A Volkova, Nina A Bondarenko, Oleg A Timoshkin, Valery V Malnik, Valentina M Domysheva & Stephanie E Hampton
This data set contains results of a study on the response of benthic algae to experimental nutrient enrichment in the nearshore of Lake Baikal, Russia. Nutrient diffusing substrata (NDS) were deployed at 10 sites across a land-use gradient (from town to forested) during August to September of 2015 . Four NDS treatments were used at each site: 'control', 'added phosphorus', 'added nitrogen' and 'added nitrogen and phosphorus'. NDS tiles were left in the lake for...

Canopy Trimming Experiment (CTE) plant seedling measurements

Jess Zimmerman
Seedlings were measured before and after treatments to determine how alterations in canopy openness and detritus affect seedling densities and life histories (growth, mortality, recruitment). It was predicted that plots experiencing canopy openness with detritus removed would have the quickest increase in seedlings (recruitment and growth), especially of early successional (light demanding) species, such as Cecropia. Seedlings in plots that received no canopy manipulation but had detritus deposited is predicted to have near-total mortality initially...

Plant phenology transect at NPP sites

Laura Huenneke
The phenological stage of all perennial plant species on the 15 NPP sites is recorded on a monthly basis. This allows us to track the influence of weather and of site differences on plant reproduction. The boundaries of the (80m x 80m) study plot are walked and each individual plant of any perennial species in a 1-m belt is examined and its phenology noted (non-reproductive, in bud, in flower, in fruit, or dormant).

Tide Data for Hog Island (1991-), Redbank (1992-), Oyster (2007-)

John Porter, David Krovetz, James Spitler, Thomas Williams & Kathleen Overman
Tide data from VCR/LTER tide stations. It is available as a single large comma-separated-value file (size >50MB) or as individual years. Zip files contain annually-segmented data in two forms. The file tideYY.dat contains the data for year YY in a column format. The file tideYY.csv contains the same data in a comma-delimited format. For several sites and time periods, water temperatures are also recorded.

Registration Year

  • 2018
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Resource Types

  • Dataset
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Data Centers

  • Environmental Data Initiative
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