Author Profile: T Cook

Publications from T. Cook

Satellite image of Point Barrow, Alaska. A 40-year record of carbon dioxide concentrations in Alaska offers insight into how the carbon cycle responds to temperature.

Research Spotlight 21 September 2018

Autumn Warming No Longer Accelerating Carbon Loss in the North

An analysis of Point Barrow’s 40-year record points to the importance of calculating the carbon cycle’s response to temperature during the northern latitudes’ non-growing season.

Planetary Sciences

Research Spotlight 13 August 2018

Evidence of Regional Deposition in Mars’s South Polar Deposits

Shallow Radar correlation of discrete units in one of the Red Planet’s largest ice reservoirs suggests that its material was emplaced as a single, regional deposit.

Ocean Sciences

Researchers look at the traces of icebergs in the Norwegian Sea to better understand the past behavior of North Atlantic currents

Research Spotlight 1 August 2018

Scraping Bottom: Iceberg Scours Reveal North Atlantic Currents

A 3-D seismic analysis of Pleistocene iceberg gouges indicates that surface currents in the Norwegian Sea flowed northward and remained consistent during numerous glacial cycles.

Hydrology, Cryosphere & Earth Surface

Researchers recreate streams in the lab to study sediment pulses

Research Spotlight 24 July 2018

How Are Sediment Pulses Generated?

A new long-term flume experiment shows that bed load gravel travels downstream in recurring, 10-hour pulses even when water flow and sediment supply are constant.

Ocean Sciences

Researchers use seafloor pressure sensor data to examine how infragravity waves are reflected back to shore by the edge of a continental shelf

Research Spotlight 23 July 2018

On the Origin of Infragravity Waves

Seafloor pressure sensor data show that long-period ocean surface waves radiating from the world’s shorelines are mostly reflected back to shore by the continental shelf edge.

Space Science & Space Physics

Satellite observations offer a glimpse of how Kelvin-Helmholtz waves behave in Earth’s magnetic tail

Research Spotlight 20 July 2018

Measurements of Kelvin-Helmholtz Waves in Earth’s Magnetic Field

Simultaneous satellite observations from different distances of Earth’s magnetic tail offer insight into how these instability waves evolve through time and space.

Biogeosciences

Researchers sample glacial meltwater plumes to examine their role in nutrient transport

Research Spotlight 17 July 2018

Glacial Meltwater Plumes Support Greenland Phytoplankton Blooms

Field measurements from the Bowdoin Glacier show that entrainment of deep water into upwelling glacial discharge delivers crucial nutrients to the surface of the surrounding fjord.

Climate Change

Researchers analyze historical modeling outputs to assess seasonal climate predictions

Research Spotlight 12 July 2018

Evaluating the Accuracy of Seasonal Climate Predictions

An analysis of historical modeling outputs is improving our understanding of the relationships between different types of seasonal forecasting skills.

Biogeosciences

Researchers examine the impact of increased precipitation on lake water clarity.

Research Spotlight 2 July 2018

Dark and Stormy: How More Rainfall Leads to Warm and Murky Lakes

Reduced clarity in two northeastern Pennsylvania lakes has resulted in warmer surface water and cooler bottom water despite stable regional air temperatures during the past 3 decades.

Geology & Geophysics

Researchers combine diverse data sets to analyze earthquake recurrence intervals in central Washington State.

Research Spotlight 19 June 2018

Constraining Central Washington’s Potential Seismic Hazard

Fault geometry and slip rate analyses show deformation in the Yakima Fold Province accelerated in the Pleistocene and has remained elevated, offering new insights into earthquake recurrence intervals.

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