Hydrologic Controls On Microbial Mat Communities In The McMurdo Dry Valley Streams Of Antarctica

Kohler , Tyler J 1 ; McKnight , Diane M 2 1 INSTAAR, ÀÖ²¥´«Ã½ 2 INSTAAR, ÀÖ²¥´«Ã½ In the McMurdo Dry Valleys, perennial cyanobacterial mats have adapted to undependable streamflow by persisting in a desiccated state during winter, but resume photosynthesizing with rehydration in summer months...

Estimating Freshwater Discharge From The Greenland Ice Sheet With MODIS

Hudson , Benjamin 1 ; Overeem , Irina 2 ; Syvitski , James P.M. 3 ; Mikkelsen , Andreas 4 1 ÀÖ²¥´«Ã½, Community Surface Dyamics Modeling System 2 ÀÖ²¥´«Ã½, Community Surface Dyamics Modeling System 3 ÀÖ²¥´«Ã½, Community Surface Dyamics Modeling System 4 University of...

Modeling The Effects Of Bed Topography On Fluvial Erosion By Saltating Bed Load

Huda , Shahen A. 1 ; Small , Eric E. 2 1 ÀÖ²¥´«Ã½ at Boulder, Dept of Geological Sciences 2 ÀÖ²¥´«Ã½ at Boulder, Dept of Geological Sciences Abrasion by bed load is a dominant erosional mechanism of fluvial incision into bedrock. The foremost saltation-abrasion model states...

Land Subsidence At Aquaculture Facilities In The Yellow River Delta, China

Higgins , Stephanie 1 ; Overeem , Irina 2 ; Tanaka , Akiko 3 ; Syvitki , James P. M. 4 1 Department of Geological Sciences, Institute of Arctic and Alpine Research 2 Institute of Arctic and Alpine Research 3 AIST, Japan 4 Department of Geological Sciences, Institute of Arctic...

The Aquatic Program At The National Ecological Observatory Network (NEON)

Goodman , Keli J 1 ; Fitzgerald , Michael 2 ; Parker , Stephanie M 3 ; Roehm , Charlotte L 4 ; Utz , Ryan M. 5 ; Powell , Heather 6 1 NEON 2 NEON 3 NEON 4 NEON 5 NEON 6 NEON The National Ecological Observatory Network...

Hydraulic Fracturing Water Usage: Activist Perceptions And The Controversial Technique

Fitch , Michael 1 1 ÀÖ²¥´«Ã½ at Boulder Natural gas extraction in the United States has seen a dramatic increase over the last ten years due in large part hydraulic fracturing (fracking). In particular, Colorado has been a part of this increase in natural gas development, including in...

Sensing Vegetation Growth And Senescence With Reflected GPS Signals

Evans , Sarah G. 1 ; Small , Eric E. 2 ; Larson , Kristine M. 3 1 ÀÖ²¥´«Ã½ at Boulder, Department of Geological Sciences 2 ÀÖ²¥´«Ã½ at Boulder, Department of Geological Sciences 3 ÀÖ²¥´«Ã½ at Boulder, Department of Aerospace Engineering Sciences We have...

Modeling Large Scale Climate Indicators Using Wavelet-Based Time Series Method

Erkyihun , Solomon T. 1 ; Zagona , Edith 2 ; Balaji , Rajagopalan 3 1 Civil, Environmental, and Architectural Engineering, ÀÖ²¥´«Ã½, Boulder;CADSWES, ÀÖ²¥´«Ã½, Boulder 2 Civil, Environmental, and Architectural Engineering, ÀÖ²¥´«Ã½, Boulder;CADSWES, ÀÖ²¥´«Ã½, Boulder 3 CIRES, ÀÖ²¥´«Ã½, Boulder;Civil, Environmental,...

Modeling Microbial Contributions To Dissolved Organic Matter Using Parallel Factor Analysis

Ebert , Jessica 1 ; McKnight , Diane 2 1 ÀÖ²¥´«Ã½ 2 ÀÖ²¥´«Ã½ Dissolved organic matter (DOM) is present in all aquatic ecosystems and plays and important role in the global carbon cycle. DOM can be characterized using fluorescence spectroscopy. The measurements that are collected from...

Wildfire And Hillslope Aspect Impacts On Subsurface Hydrologic Response

Ebel , Brian A. 1 1 Cooperative Institute for Research in Environmental Sciences (CIRES) Wildfire is one of the most prevalent disturbance events in the disturbance regime of mountainous terrain and can substantially impact hydrologic processes. Recent evidence suggests wildfire incidence, susceptibility, and synchrony are increasing in some regions. The...

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