Search Results - "Doran, Peter T"
-
1
Consensus on consensus: a synthesis of consensus estimates on human-caused global warming
Published in Environmental research letters (01-04-2016)“…The consensus that humans are causing recent global warming is shared by 90%-100% of publishing climate scientists according to six independent studies by…”
Get full text
Journal Article -
2
Consensus revisited: quantifying scientific agreement on climate change and climate expertise among Earth scientists 10 years later
Published in Environmental research letters (01-10-2021)“…The scientific consensus on human-caused global warming has been a topic of intense interest in recent decades. This is in part due to the important role of…”
Get full text
Journal Article -
3
Microbial Mat Communities along an Oxygen Gradient in a Perennially Ice-Covered Antarctic Lake
Published in Applied and environmental microbiology (15-01-2016)“…Lake Fryxell is a perennially ice-covered lake in the McMurdo Dry Valleys, Antarctica, with a sharp oxycline in a water column that is density stabilized by a…”
Get full text
Journal Article -
4
Microbial life at −13 °C in the brine of an ice-sealed Antarctic lake
Published in Proceedings of the National Academy of Sciences - PNAS (11-12-2012)“…The permanent ice cover of Lake Vida (Antarctica) encapsulates an extreme cryogenic brine ecosystem (−13 °C; salinity, 200). This aphotic ecosystem is anoxic…”
Get full text
Journal Article -
5
Environmental control on the distribution of metabolic strategies of benthic microbial mats in Lake Fryxell, Antarctica
Published in PloS one (13-04-2020)“…Ecological theories posit that heterogeneity in environmental conditions greatly affects community structure and function. However, the degree to which…”
Get full text
Journal Article -
6
The Distribution of Surface Soil Moisture over Space and Time in Eastern Taylor Valley, Antarctica
Published in Remote sensing (Basel, Switzerland) (01-06-2023)“…Available soil moisture is thought to be the limiting factor for most ecosystem processes in the cold polar desert of the McMurdo Dry Valleys (MDVs) of…”
Get full text
Journal Article -
7
Brine assemblages of ultrasmall microbial cells within the ice cover of Lake Vida, Antarctica
Published in Applied and Environmental Microbiology (01-06-2014)“…The anoxic and freezing brine that permeates Lake Vida's perennial ice below 16 m contains an abundance of very small (≤0.2-μm) particles mixed with a less…”
Get full text
Journal Article -
8
Growth dynamics of a laminated microbial mat in response to variable irradiance in an Antarctic lake
Published in Freshwater biology (01-04-2016)“…Summary Laminated microbial mats are important ecosystem components of perennially ice‐covered Antarctic dry valley lakes. In order to understand better their…”
Get full text
Journal Article -
9
Spectrofluorometric Characterization of Dissolved Organic Matter for Indication of Precursor Organic Material and Aromaticity
Published in Limnology and oceanography (01-01-2001)“…We studied the fluorescence properties of fulvic acids isolated from streams and rivers receiving predominantly terrestrial sources of organic material and…”
Get full text
Journal Article -
10
Response of a Terrestrial Polar Ecosystem to the March 2022 Antarctic Weather Anomaly
Published in Earth's future (01-08-2024)“…Record high temperatures were documented in the McMurdo Dry Valleys, Antarctica, on 18 March 2022, exceeding average temperatures for that day by nearly 30°C…”
Get full text
Journal Article -
11
Microbial processes in the weathering crust aquifer of a temperate glacier
Published in The cryosphere (26-11-2018)“…Incident solar radiation absorbed within the ablation zone of glaciers generates a shallow perched aquifer and seasonal icebound microbial habitat. During the…”
Get full text
Journal Article -
12
Evidence for Pathways of Concentrated Submarine Groundwater Discharge in East Antarctica from Helicopter-Borne Electrical Resistivity Measurements
Published in Hydrology (01-06-2019)“…The Southern Ocean receives limited liquid surface water input from the Antarctic continent. It has been speculated, however, that significant liquid water may…”
Get full text
Journal Article -
13
Barotropic seiches in a perennially ice‐covered lake, East Antarctica
Published in Limnology and oceanography letters (01-02-2022)“…Water movement in ice‐covered lakes is known to be driven by wind, sediment heat flux, solar radiation, saline density flows, and advective stream discharge…”
Get full text
Journal Article -
14
Antarctic climate cooling and terrestrial ecosystem response
Published in Nature (London) (31-01-2002)“…The average air temperature at the Earth's surface has increased by 0.06 °C per decade during the 20th century, and by 0.19 °C per decade from 1979 to 1998…”
Get full text
Journal Article -
15
Origin and tentative identification of tri to pentaunsaturated ketones in sediments from Lake Fryxell, East Antarctica
Published in Organic geochemistry (01-04-2010)“…Chromatographic and mass spectrometric analysis of surface sediments from perennially ice-covered Lake Fryxell (McMurdo Dry Valleys, East Antarctica) enabled…”
Get full text
Journal Article -
16
Abrupt environmental change in Canada’s northernmost lake inferred from fossil diatom and pigment stratigraphy
Published in Geophysical research letters (28-09-2007)“…An analysis of diatoms and fossil pigments in a sediment core from perennially ice‐covered Ward Hunt Lake at latitude 83°N in Nunavut, Canada revealed striking…”
Get full text
Journal Article -
17
Long‐term stream hydrology and meteorology of a Polar Desert, the McMurdo Dry Valleys, Antarctica
Published in Hydrological processes (01-06-2022)“…The McMurdo Dry Valleys (MDVs; 77.50°S, 162.25°E) make up the largest ice‐free region of Antarctica at ~3500 km2. Their position near the coast of the Ross Sea…”
Get full text
Journal Article -
18
Estimating photosynthetic activity in microbial mats in an ice-covered Antarctic lake using automated oxygen microelectrode profiling and variable chlorophyll fluorescence
Published in Limnology and oceanography (01-05-2014)“…An automated oxygen microprofiler measured a positive flux of oxygen from microbial mats in ice-covered Lake Hoare, Antarctica, from noon, at a photon flux of…”
Get full text
Journal Article -
19
Perennial Antarctic Lake Ice: An Oasis for Life in a Polar Desert
Published in Science (American Association for the Advancement of Science) (26-06-1998)“…The permanent ice covers of Antarctic lakes in the McMurdo Dry Valleys develop liquid water inclusions in response to solar heating of internal aeolian-derived…”
Get full text
Journal Article -
20
Induced polarization effects in airborne transient electromagnetic data collected in the McMurdo Dry Valleys, Antarctica
Published in Geophysical journal international (01-09-2021)“…SUMMARY Airborne electromagnetics (EM) is a geophysical tool well suited to mapping glacial and hydrogeological structures in polar environments. This…”
Get full text
Journal Article