12 Works

Energy and water co-benefits from covering canals with solar panels

Brandi McKuin, Andrew Zumkehr, Jenny Ta, Roger Bales, Joshua Viers, Tappan Pathak & J. Elliott Campbell
In the manuscript entitled, "Energy and water co-benefits from covering canals with solar panels", we quantified the evaporation savings and financial performance of over-canal solar in comparison to over-ground solar on land adjacent to canals, using regional-scale hydrologic and cost simulations. We conducted regional hydrologic and techno-economic simulations of solar PV panels covering California’s 6350 km canal network. We examined the net effect on the financial performance of three different solar PV structures at eight...

Pronghorn (Antilocapra americana) enamel phosphate δ18O values reflect climate seasonality: implications for paleoclimate reconstruction

Danielle Fraser, Mark Clementz, Jeffrey Welker & Sora Kim
Stable oxygen isotope compositions from vertebrate tooth enamel are commonly used as biogeochemical proxies for paleoclimate reconstructions. However, the utility of enamel isotopic values across species varies due to differences in rates of enamel deposition and mineralization as well as sources of ingested water, body water residence times, and species’ physiology. We evaluate the use of stable oxygen isotope compositions from pronghorn (Antilocapra americana Gray, 1866) enamel for the amplitude reconstruction of terrestrial paleoclimate seasonality....

Comparative molecular analysis of cancer behavior cultured in vitro, in vivo, and ex vivo

Nicholas R. Hum, Aimy Sebastian, Sean F. Gilmore, Wei He, Kelly A. Martin, Aubree Hinckley, Karen R. Dubbin, Monica L. Moya, Elizabeth K. Wheeler, Matthew A. Coleman & Gabriela G. Loots
Current pre-clinical models of cancer fail to recapitulate the cancer cell behavior in primary tumors primarily because of the lack of a deeper understanding of the effects that the microenvironment has on cancer cell phenotype. Transcriptomic profiling of 4T1 murine mammary carcinoma cells from 2D and 3D cultures, subcutaneous or orthotopic allografts (from immunocompetent or immunodeficient mice), as well as ex vivo tumoroids, revealed differences in molecular signatures including altered expression of genes involved in...

On the social and cognitive dimensions of wicked environmental problems characterized by conceptual and solution uncertainty

Felber J. Arroyave B., Oscar Yandy Romero Goyeneche, Meredith Gore, Gaston Heimeriks, Jeffrey Jenkins & Alexander M. Petersen
We develop a quantitative framework for understanding the class of wicked problems that emerge at the intersections of “natural”, social, and technological complex systems. Wicked problems reflect our incomplete understanding of interdependent global systems and the systemic risk they pose; such problems escape solutions because they are often ill-defined, and thus misidentified and under-appreciated by communities of problem-solvers. While there are well-documented benefits to tackling boundary-crossing problems from various viewpoints, the integration of diverse approaches...

Data from: Rethinking sustainability in seafood: synergies and trade-offs between fisheries and climate change

Brandi McKuin, Jordan Watson, Stephen Stohs & J. Elliott Campbell
In the manuscript entitled, "Rethinking sustainability in seafood: synergies and trade-offs between fisheries and climate change", we quantified the climate forcing per unit fish protein associated with several different U.S. tuna fishing fleets, among the most important capture fisheries by both volume and value. The fishing fleets include the U.S. purse seine that operates in the Western Central Pacific Fisheries Commission convention area, the U.S. North Pacific albacore surface gear (which includes both troll and...

Data for: Rapid alignment updating with Extensiphy

Jasper T. Field
1. High throughput sequencing has become commonplace in evolutionary studies. Large, rapidly collected genomic datasets are used to capture biodiversity and for monitoring global and national scale disease transmission patterns, among many other applications. Updating homologous sequence datasets with new samples is cumbersome, requiring excessive program runtimes and data processing. We describe Extensiphy, a bioinformatics tool to efficiently update multiple sequence alignments with whole-genome short-read data. Extensiphy performs reference based sequence assembly and alignment in...

Yangtze River basin ecological and hydrogeomorphic data relevant to regional hydrologic classification for sustainable dam operation

Britne Clifton, Anna Rallings & Joshua Viers
While some rivers have been modified and regulated for centuries requiring recovery efforts and restoration, other rivers are currently under development and facing the challenges of environmental degradation and loss of ecological functionality. As countries, such as China, expand current infrastructure to develop and construct flood reduction, hydropower, and water storage facilities along their rivers, the threat of detrimental ecological impacts expands too. To address these pressing challenges, this data set was used in the...

2009 modeled electricity prices from HiGRID for the California grid

Brian Tarroja, Joshua H. Viers, Aditya Sood & Gustavo Facincani Dourado
This dataset was developed to be used in the CenSierraPywr model, created for the project "Optimizing Hydropower Operations While Sustaining Ecosystem Functions in a Changing Climate", for the California Energy Commission. The model that includes hydroeconomic optimization for hydropower production in the Stanislaus and Upper San Joaquin River basins in the Central Sierra Nevada, California. The two basins have high elevation reservoirs that are typically operated to maximize revenue from hydropower production. Therefore, to better...

Data from: Ecological and environmental stability in offshore Southern California Marine Basins through the Holocene

Hannah Palmer, Tessa Hill, Esther Kennedy, Peter Roopnarine, Sonali Langlois, Katherine Reyes & Lowell Stott
In the face of ongoing marine deoxygenation, understanding timescales and drivers of past oxygenation change is of critical importance. Marine sediment cores from tiered silled basins provide a natural laboratory to constrain timing and implications of oxygenation changes across multiple depths. Here, we reconstruct oxygenation and environmental change over time using benthic foraminiferal assemblages from sediment cores from three basins across the Southern California Borderlands: Tanner Basin (EW9504-09PC, 1194 m water depth), San Nicolas Basin...

Data from: Identifying genetic variation associated with environmental variation and drought-tolerance phenotypes in ponderosa pine

Mengjun Shu & Emily Moran
Background Genotype-to-environment (G2E) association analysis coupled with genotype-to-phenotype (G2P) association analysis promises exciting advances towards discovering genes responsible for local adaptation. We combine G2E and G2P analysis with gene annotation in Pinus ponderosa (ponderosa pine), an ecologically and economically important conifer that lacks a sequenced genome, to identify genetic variants and gene functions that may be associated with local adaptation to drought. Results We identified SNP markers in 223 genotypes from across the Sierra Nevada...

Near-term modeled forest fire area and fuel aridity projections

John Abatzoglou
Escalating burned area in western US forests has heightened the need to refine near-term forest fire projections. One critical knowledge gap is how fire-fuel feedbacks may constrain such projections. We use both static climate-fire models and dynamic models that incorporate feedbacks to project future western US forest-fire area. Compared to 1991-2020, static models for 2021-2050 project a doubling in forest-fire area, increased year-to-year variability, and increased occurrence of years with forest-fire area exceeding the 2020...

Computed tomography reveals hip dysplasia in the extinct Pleistocene saber-tooth cat Smilodon

Mairin Balisi, Abhinav Sharma, Carrie Howard, Christopher Shaw, Robert Klapper & Emily Lindsey
Reconstructing the behavior of extinct species is challenging, particularly for those with no living analogues. However, damage preserved as paleopathologies on bone can record how an animal moved in life, potentially reflecting behavioral patterns. Here, we assess hypothesized etiologies of pathology in a pelvis and associated right femur of a Smilodon fatalis saber-toothed cat, one of the best-studied species from the Pleistocene-age Rancho La Brea asphalt seeps, California, USA, using visualization by computed tomography (CT)....

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of California, Merced
  • University of California, Santa Cruz
  • David Geffen School of Medicine at UCLA
  • Natural History Museum of Los Angeles County
  • University of Wyoming
  • University of Alaska System
  • Santa Rosa Junior College
  • Canadian Museum of Nature
  • Cedars-Sinai Medical Center
  • California Academy of Sciences