Now showing items 1-20 of 366

    • 2010/11 McMurdo Station snow-road strength and maintenance 

      Melendy, Terry D.; Shoop, Sally A. (Sally Annette) (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2017-02)
      Abstract: During the 2010/11 Antarctic field season, the Cold Regions Research and Engineering Laboratory (CRREL) conducted a snow roads and transportation study for a second year at McMurdo Station. Part of this study ...
    • A field guide to the identification of the Ordinary High Water Mark (OHWM) in the Arid West region of the Western United States : a delineation manual 

      Lichvar, Robert.; McColley, Shawn, M. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2008-08)
      The Ordinary High Water Mark (OHWM) is an approach for identifying the lateral limits of non-wetland waters. However, determining whether any non-wetland water is a jurisdictional “Water of the United States” (WoUS) involves ...
    • A generalized approach to soil strength prediction with machine learning methods 

      Seman, Peter M. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2006-07)
      Current methods for evaluating the suitability of potential landing sites for fixed-wing aircraft require a direct measurement of soil bearing capacity. In contingency military operations, the commitment of ground troops ...
    • A guide to Ordinary High Water Mark (OHWM) delineation for non-perennial streams in the Western Mountains, Valleys, and Coast Region of the United States 

      Mersel, Matthew King.; Lichvar, Robert. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2014-08)
      This document provides technical guidance for delineating the ordinary high water mark (OHWM) in non-perennial streams in the Western Mountains, Valleys, and Coast (WMVC) Region of the United States. Under Section 404 of ...
    • A method for producing fine-grained ice from snow by compaction 

      Diemand, D. (Deborah); Klokov, Valeriĭ Dmitrievich. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2001-08)
      This report describes a preliminary study of the fabrication of building blocks by converting snow directly to ice without the very high energy cost of melting it first. This was accomplished by a hot sinter technique that ...
    • A preliminary investigation of diffusion of volatile atmospheric acids in snow 

      Cragin, James H.; Leggett, Daniel C. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2003-11)
      A preliminary coldroom experiment was conducted to determine the diffusion rate of several reactive atmospheric chemical contaminants in snow at –7°C. These species included formaldehyde, p-nitrotoluene (PNT), HNO₃, and ...
    • A reconnaissance snow survey across Northwest Territories and Nunavut, Canada, April 2007 

      Sturm, Matthew.; Derksen, Chris.; Liston, Glen; Silis, Arvids.; Solie, Daniel.; Holmgren, Jon.; Huntington, Henry. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2008-02)
      During April 2007, a coordinated series of snow measurements were made across the Northwest Territories and Nunavut, Canada, during a 4200-km snowmobile traverse from Fairbanks, Alaska, to Baker Lake, Nunavut. While detailed, ...
    • A review of land and stream classifications in support of developing a national Ordinary High Water Mark (OHWM) classification 

      Mersel, Matthew King.; Lefebvre, Lindsey E.; Lichvar, Robert. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2014-08)
      Under Section 404 of the Clean Water Act, the ordinary high water mark (OHWM) defines the lateral extent of federal jurisdiction in non-tidal waters of the United States in the absence of adjacent wetlands. Extensive ...
    • A review of the growth habits and restoration issues for Clitoria fragrans and Polygonella basiramia 

      Palazzo, A. J. (Antonio J.); Hardy, Susan E.; Cary, Timothy J.; Bashore, Terry. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2007-06)
      Abstract: Military training activities, such as tracked vehicle operations and the use of high explosive ordnance, damage soils and vegetation. When federally listed threatened or endangered species are located in areas ...
    • A review of the thermodynamics of frost heave 

      Henry, Karen S. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2000-09)
      Thermodynamic equilibrium requires a balance of thermal, mechanical, and chemical forces. The general equation for mechanical equilibrium between two phases describes capillary effects in porous materials, important in ...
    • A state-space model for ice forecasting 

      Daly, Steven F. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2003-05)
      Each winter, ice forms on rivers, streams, and navigable waterways, causing many problems through its effects on the operation of hydraulic control structures, locks and dams, hydropower plants, and water intakes. Ice ...
    • A statistical micromechanical theory of cone penetration in granular materials 

      Johnson, Jerome B. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2003-02)
      A micromechanical theory of cone penetration in granular material is developed that takes into account the effects of soil/penetrometer friction, material compaction, and the statistics of microstructural element failure. ...
    • A technique to propagate Clitoria fragrans from xylopodia 

      Cary, Timothy J.; Bashore, Terry L.; Leavitt, Laura M.; Palazzo, A. J. (Antonio J.) (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2015-03)
      Clitoria fragrans (pigeon wings), is a limited seed producer and a federally listed threatened plant. Therefore, we conducted a greenhouse study to determine whether C. fragrans can be propagated vegetatively from xylopodia ...
    • Addressing uncertainty in signal propagation and sensor performance predictions 

      Wilson, D. Keith.; Pettit, Chris.; MacKay, Sean.; Lewis, Matthew S.; Seman, Peter M. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2008-11)
      As advanced sensors are increasingly relied upon for force protection, rapid strike, maneuver support, and other tasks, expert decision support tools (DSTs) are needed to recommend appropriate mixes of sensors and place-ments ...
    • Adsorption/desorption measurements of nitroglycerin and dinitrotoluene in Camp Edwards, Massachusetts soil 

      Clausen, Jay L.; Scott, Constance L.; Mulherin, Nathan D.; Bigl, Susan R.; Gooch, Gordon E.; Douglas, Thomas A.; Osgerby, Ian T.; Palm, B. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2010-02)
      The mobility potential of nitroglycerin (NG) and dinitrotoluene (DNT) in small-arms range (SAR) soils was studied through a determina-tion of adsorption and desorption. Measured laboratory batch-adsorption soil/water ...
    • Advances in Antarctic sled technology 

      Lever, J. H.; Weale, Jason C.; Kaempfer, Thomas U.; Preston, Monica J. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2016-02)
      Abstract: This report discusses the recent advances in the performance of sleds developed for polar resupply traverses. Researchers at the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) have guided ...
    • Airfield passenger transportation system at McMurdo Station, Antarctica 

      Seman, Peter M. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2012-09)
      The United States Antarctic Program’s McMurdo Station in Antarctica is currently served by three airfields. Combined, these airfields are used for all passenger service and are a key element of the cargo supply system. The ...
    • An ecological land survey for Fort Greely, Alaska 

      Jorgenson, M. Torre.; Roth, Joanna E.; Smith, Michael D.; Schlenter, Sharon.; Lentz, Will.; Pullman, Erik R.; Racine, Charles H. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2001-02)
      An ecological land survey (ELS) of Fort Greely land was conducted to map ecosystems at three spatial scales to aid in the management of natural resources. In an ELS, an attempt is made to view landscapes not just as ...
    • An ecological land survey for Fort Richardson, Alaska 

      Jorgenson, M. Torre.; Roth, Joanna E.; Schlentner, Sharon F.; Pullman, Erik R.; Macander, Matt.; Racine, Charles H. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2003-09)
      An ecological land survey (ELS) of Fort Richardson land was conducted to map ecosystems at three spatial scales to aid in the management of natural resources. In an ELS, an attempt is made to view landscapes not just as ...
    • An examination of protocols for the collection of munitions-derived explosives residues on snow-covered ice 

      Walsh, Michael R.; Walsh, Marianne E.; Ramsey, Charles A.; Jenkins, Thomas F. (Cold Regions Research and Engineering Laboratory (U.S.)Engineer Research and Development Center (U.S.), 2005-04)
      Range contamination and sustainability are major issues for the United States military. Training is a critical factor in force readiness, and the availability of ranges is crucial to this need. To determine the impact of ...