485 results — topic: Geochemistry & Isotopes

Dataset

SPLASH Field Study; HELiX UAS Solar Irradiance data from 2022-03-12 to 2022-06-04 (NCEI Accession 0303584)

From fall 2021 through summer 2023, NOAA and research partners conducted a field study (SPLASH - the Study of Precipitation, the Lower Atmosphere and Surface for Hydrometeorology). This field study established a state-of-the-art observing network in the East River watershed of the Colorado mountains

NCEI2025DOI: 10.25921/1x3z-k658
Dataset

SPLASH Field Study; NOAA PSL thermodynamic profiles retrieved from ASSIST infrared radiances with the optimal estimation physical retrieval TROPoe (NCEI Accession 0303808)

This dataset contains daily files with thermodynamic profiles retrieved with the optimal estimation physical retrieval TROPoe (TROPoe, Turner and Löhnert 2014; Turner and Blumberg 2019; Turner and Löhnert 2021). The profiles are retrieved every 10 min from instantaneous radiances observed with an At

NCEI2025DOI: 10.25921/wcbz-8383
Dataset

SPLASH Field Study; NOAA PSL Soil Moisture and Surface Temperature Probe Data at Avery Picnic and Kettle Ponds, Colorado (NCEI Accession 0302136)

From fall 2021 through summer 2023, NOAA and research partners conducted a field study (SPLASH - the Study of Precipitation, the Lower Atmosphere and Surface for Hydrometeorology). This field study established a state-of-the-art observing network in the East River watershed of the Colorado mountains

NCEI2025DOI: 10.25921/9875-sa56
Dataset

SPLASH Field Study; BST/NOAA PSL Level 3 UAS Soil Moisture, Digital Elevation, Normalized Difference Vegetative Index, and Surface Temperature (NCEI Accession 0301536)

From fall 2021 through summer 2023, NOAA and research partners participated in the Study of Precipitation, the Lower Atmosphere and Surface for Hydrometeorology (SPLASH). This field study installed a comprehensive, state-of-the-art observing network in the East River watershed of the Colorado mounta

NCEI2025DOI: 10.25921/kre7-sn43
Dataset

SPLASH Field Study; NOAA NSSL CLAMPS2 TROPoe Retrievals from 2021-10-21 to 2022-01-18 (NCEI Accession 0303080)

From fall 2021 through summer 2023, NOAA and research partners conducted a field study (SPLASH - the Study of Precipitation, the Lower Atmosphere and Surface for Hydrometeorology). This field study established a state-of-the-art observing network in the East River watershed of the Colorado mountains

NCEI2025DOI: 10.25921/9nsn-0p81
Dataset

SPLASH Field Study; Atmospheric Surface Flux Station #50 measurements (level 2 Processed), Oct2021-Jun2023 (NCEI Accession 0303960)

Processed (Level 2) measurements and derived variables from the Atmospheric Surface Flux Station #50 (ASFS-50) deployed at the Avery Picnic site (38°58.3455' N, 106°59.8113' W) during the Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology (SPLASH) campaign near Gothic, Co

NCEI2025DOI: 10.25921/j9hx-mt86
Dataset

SPLASH Field Study; Atmospheric Surface Flux Station #30 measurements (level 2 Processed), Sep2021-Jul2023 (NCEI Accession 0303959)

Processed (Level 2) measurements and derived variables from the Atmospheric Surface Flux Station #30 (ASFS-30) deployed at the Kettle Ponds Annex site (38°56.3686' N, 106°58.1781' W) during the Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology (SPLASH) campaign near Goth

NCEI2025DOI: 10.25921/2q0f-j097
Dataset

Site and endmember spectra of terrestrial vegetation and soils for the Colorado Headwaters Ecological Spectroscopy Study, June-July 2025

This dataset provides site and endmember spectra collected during the 2025 Colorado Headwaters Ecological Spectroscopy Study (CHESS) campaign. The site spectra were collected to help validate airborne hyperspectral data acquired by the National Ecological Observatory Network's aerial observation pla

Kathleen Kanaley, Erin Carroll, K. Dana Chadwick2025DOI: 10.15485/2997555
Dataset

Metagenome-assembled genomes from Slate River floodplain sediments near Crested Butte, CO, USA (June to October 2020)

Microorganisms play a key role in cycling nutrients and contaminants in the terrestrial environment depending on their genetic potential. Here we present metagenome-assembled genomes (MAGs) for the bacterial and archaeal community in floodplain sediment samples taken June to October 2020 at two loca

Anna Rasmussen2025DOI: 10.15485/2588874
Dataset

Metagenome-assembled genomes from Slate River floodplain sediments near Crested Butte, CO, USA (June 2018)

Microorganisms play a key role in cycling nutrients and contaminants in the terrestrial environment depending on their genetic potential. Here, we present metagenome-assembled genomes (MAGs) for the bacterial and archaeal community in floodplain sediment samples taken June 2018 at two locations (OBJ

Anna Rasmussen, Bradley Tolar, John Bargar2025DOI: 10.15485/2588876
Dataset

Metagenome-assembled genomes from Slate River floodplain sediments near Crested Butte, CO, USA (September 2019)

Microorganisms play a key role in cycling nutrients and contaminants in the terrestrial environment depending on their genetic potential. Here we present metagenome-assembled genomes (MAGs) for the bacterial and archaeal community in floodplain sediment samples taken September 2019 at one locations

Anna Rasmussen, Bradley Tolar, John Bargar2025DOI: 10.15485/2588875
Dataset

Groundwater elevation data for monitoring wells within the East and Taylor River basins, Colorado (USA)

This dataset is comprised of temporal variations in groundwater elevation data for the 24 monitoring wells located throughout the East River watershed. Seasonal to annual variations in groundwater elevations are a critical property of mountainous watersheds needed to understand both hydrological and

Kenneth Williams, Curtis Beutler, Austin Shirley2025DOI: 10.15485/2575230Cited 1 times
Dataset

Stream bed topography in 2016 at the Lower Montane site in the East River Watershed, Colorado

This dataset contains stream bed topography data from the Lower Montane site in the East River Watershed, Colorado. It is intended to support hydro-biogeochemical analyses for the Watershed Function Scientific Focus Area (SFA). The stream bed was surveyed using a RTK-GPS (Real-Time Kinematic Global

Baptiste Dafflon, John Peterson2025DOI: 10.15485/2566876
Dataset

Snow Depth Datasets for Snodgrass Catchment, Colorado, Water Year 2022-2023

This data package presents snow depths data from distributed temperature probes at 18 locations near Snodgrass catchment, Colorado. These data show that snow melt-out dates are approximately one or two weeks later under evergreen forests compared to other vegetation types even at the same elevation.

Lijing Wang, Chen Wang, Baptiste Dafflon2025DOI: 10.15485/2572212Cited 1 times
Dataset

Metagenome-assembled genomes from topsoils along a hillslope water gradient across early snowmelt to late summer in East River, CO

Drought is changing the American Mountain West at unprecedented rates with unknown consequences to soil microbiome composition and function. As a part of LBNL Watershed Science Focus Area (SFA), we investigated shifts in microbial community and transcriptional activity on a subalpine conifer-meadow

Preston Tasoff, Ulas Karaoz, Jillian F. Banfield2025DOI: 10.15485/2571194
Dataset

Foliar element determination from field survey in association with the National Ecological Observatory Network Airborne Observation Platform survey, East River, Colorado 2018

The purpose of this dataset is to support research aimed at understanding the coupling between hydrologic and biogeochemical processes at watershed scale, particularly the relationship between aboveground vegetation characteristics and subsurface soil properties. These data are intended to inform an

Kathleen Grant, K. Dana Chadwick, Amanda Henderson2025DOI: 10.15485/2574425
Dataset

Site and endmember spectra of terrestrial vegetation and soils for the Colorado Headwaters Ecological Spectroscopy Study, June-July 2025

This dataset provides site and endmember spectra collected during the 2025 Colorado Headwaters Ecological Spectroscopy Study (CHESS) campaign. The site spectra were collected to help validate airborne hyperspectral data acquired by the National Ecological Observatory Network's aerial observation pla

Kathleen Kanaley, Erin Carroll, K. Dana Chadwick2025DOI: 10.15485/2997555
Article

Pollinator and habitat-mediated selection as potential contributors to ecological speciation in two closely related species

In ecological speciation, incipient species diverge due to natural selection that is ecologically based. In flowering plants, different pollinators could mediate that selection (pollinator-mediated divergent selection) or other features of the environment that differ between habitats of 2 species co

Campbell D. R., Powers J. M., Crowell M. D.2023Evolution LettersDOI: 10.1093/evlett/qrad060Cited 6 times
Document

Thoughts on Dialogue

These thoughts are purely my own. No one else is responsible for them. So far as I know, no one agrees with them. And no organization endorses them. But dialogue has to start somewhere. And I have learned through thirty years of building dialogue in the interest of conservation that where there is a

Document

Summary of the Gunnison Water Situation

In 1986 the City of Aurora and the Natural Energy Resources Company (NECO) filcd claims for the right to divert massive amounts of water from Gunnison County to the Front Range. The Upper Gunnison River Water Conservancy District also filed for rights to the same water for in-basin use. The High Cou

gunnison_basin