publications

Refereed manuscripts

Unrefereed manuscripts

Presentations at major Conferences

Major scientific reports

 

refereed manuscripts

Romanowitz B., G. Roult & T. Kohl, 1987, The upper mantle degree two pattern: constraints from Geoscope fundamental spheroidal mode eigenfrequency and attenuation measurements, Geophys. Res. Lett., 14 (12), pp. 1219-1222

Kohl T., 1992, Modellsimulation gekoppelter Vorgänge beim Wärmeentzug aus heissem Tiefengestein, Ph.D. thesis, ETH Zürich, No 9802, Switzerland

(1.8MB)

Evans K.F., T. Kohl, L. Rybach & R.J. Hopkirk, 1993, The effects of fracture normal compliance on HDR long term behavior, Geothermal Resources Council Transactions, 16, pp. 449-456

Kohl T., R.J. Hopkirk, K.F. Evans & L. Rybach, 1993, FRACTure - A new tool to simulate coupled processes in geosciences, In: K. Morgan, E. Ońate, J. Periaux, J. Peraire, O.C. Zienkiewicz (Eds), Finite Elements in Fluids, Pineridge Press, pp. 949-958

Kohl T., F. Medici & L. Rybach, 1994, Numerical simulation of radon transport from subsurface to buildings, J. of Appl. Geophys, 31, pp 145-152

(0.9MB)

Kohl T., K.F. Evans, R.J. Hopkirk & L. Rybach, 1995, Modelling of coupled hydraulic, thermal and mechanical behaviour in the simulation of Hot Dry Rock reservoir behaviour, In: L.R. Myer, N.G.W. Cook, R.E. Goodman & C.-F. Tsang (Eds), Fractured and Jointed Rock Masses, pp. 535-542, Balkema, Rotterdam

Kohl T., P. Marschall & L. Rybach, 1995, The salt heat tracer experiment, In: NAGRA NTB, 93-47, pp. 90-125, Baden, Switzerland

Kohl T., K.F. Evans, R.J. Hopkirk & L. Rybach, 1995, Coupled hydraulic thermal and mechanical considerations for the simulation of Hot Dry Rock reservoirs, Geothermics, 24(3), pp. 333-343

(1.3MB)

Kohl T. & R.J. Hopkirk, 1995, "FRACTure" a simulation code for forced fluid flow and transport in fractured porous rock, Geothermics, 24(3), pp. 345-359

(1.0MB)

Kohl T., K.F. Evans, R.J. Hopkirk, R. Jung & L. Rybach, 1995, Modelling of turbulent flow transients within Hot Dry Rock fracture systems: Preliminary Results, Proc. World Geothermal Congress, Florence, Italy, pp 2597-2600

Jupe A., D. Bruel, T. Hicks, R.J. Hopkirk, O. Kappelmeyer, T. Kohl, O. Kolditz, N. Rodrigues, T. Wallroth, J. Willis-Richards & S. Xu, 1995, Numerical modelling of HDR reservoirs, Proc. World Geothermal Congress, Florence, Italy, pp. 2571-2574

Kohl T. & L. Rybach, 1996, Thermal and hydraulic aspects of the KTB drill site, Geophys. J. Int., 124(3), pp. 756-772

(3.1MB)

Kohl T., K.F. Evans, R.J. Hopkirk, R. Jung & L. Rybach, 1997, Observation and simulation of non-Darcian flow transients in fractured rock, Water Resources Research, 33(3), pp. 407-418.

(1.6MB)

Clauser C., P. Giese, E. Huenges, T. Kohl, H. Lehmann, L. Rybach, J. Šafanda, H. Wilhelm, K. Windloff & G. Zoth, 1997, The thermal regime of the crystalline continental crust - implications from the KTB, J. Geophys. Res., 102(B8), pp. 18417-18441

Kohl T., 1998, Palaeoclimatic temperature signals - can they be washed out?, Tectonophysics, 291(1-4), pp. 225-234

Kohl T., 1999, Transient thermal effects at complex topographies, Tectonophysics, 306, pp. 311-324

(0.6MB)

Pribnow, D., Kohl, T., Jung, R., Rybach, L. & Clauser, C., 1999, The European HDR project in Soultz: an unconventional reservoir type?, Geothermal Resources Council Transactions, 23, pp. 205-210

Isaksen K., Vonder Mühll D., Gubler H., Kohl T., Sollid J. L., 2000, Ground surface temperature reconstruction based on data from a deep borehole in permafrost at Janssonhaugen, Svalbard, Annals of Glaciology, 31, pp. 287-294

Kohl., T., Bächler, D., Rybach, L., 2000, Steps towards a comprehensive thermo-hydraulic analysis of the HDR test site Soultz-sous-Foręts. In: Proc. World Geothermal Congress 2000, Kyushu-Tohoku, Japan,  pp. 3459-3464

(0.3MB)

Kohl, T., Salton, M., Rybach, L., 2000, Data analysis of the deep borehole heat exchanger plant Weissbad (Switzerland). In: Proc. World Geothermal Congress 2000, Kyushu-Tohoku, Japan, pp. 2671-2676

(0.3MB)

Kohl T., Signorelli S. &. Rybach L.,  2001, Three-dimensional thermal investigation below high Alpine topography, Physics of the Earth and Planetary Interiors, 126, pp. 195–210

(0.3MB)

Graf, F. Rybach, L. Kohl, T. Mégel, T. Sutterlütti, R. Fuchs, R., 2002, Hydraulic-Geothermal Modelling of Koralm Base Tunnel, Felsbau, in press

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unrefereed manuscripts

Kohl T., K.F. Evans, L. Rybach & R.J. Hopkirk, 1992, Gekoppelte Vorgänge beim Wärmeentzug aus Hot Dry Rock Systemen, Tagungsband Geothermische Fachtagung 12.-15.10.1992, Erding, pp 496-503

Kohl T. & L. Rybach, 1994, Modeling the heat flow field in the surrounding of the KTB drill site, Proc. 7th Int. Sympos. Observation of Continental Crust Through Drilling, Santa Fe NM, pp 114-117, DOSECC Cont. Scient. Drilling Prog., Texas A&M Univ., College Station, USA

Clauser C., U. Harms, E. Huenges, T. Kohl, H. Lehmann & L. Rybach, 1994, Heat transport processes at the KTB, KTB Report, 94-2, pp A117-A128

Kohl T., R. Jung, R.J. Hopkirk & L. Rybach, 1996, Non-linear flow transients in fractured rock masses - The 1995 injection experiment in Soultz, Proc. 21st Workshop Geothermal Reservoir Engineering, Stanford Univ. CA, USA, 22-24 Jan. 1996, 21, pp.157-164

Kohl T. & L. Rybach, 1996, Instationäre thermo-hydraulische Effekte an der KTB - lässt sich das Paläosignal auswaschen?, Mitteilungen Deutsche Geophysikalische Gesellschaft, II/1996, pp.62-70.

Kohl T., K.F. Evans, R.J. Hopkirk, R. Jung & L. Rybach, 1997, Beobachtung und Simulation von nicht-laminarem Fliessverhalten am HDR Standort Soultz, Geothermie - Energie der Zukunft, Tagungsband Geothermische Fachtagung 18.-20. 9.1996, Konstanz, pp.242-247.

Kohl T., S.M. Weise, K. Bräuer, H. Kämpf, L. Rybach, G. Strauch, 1998, Kombination von thermischen und CO2 Signaturen zur Bewertung grossräumiger krustaler Permeabilitätsverteilung, Mitteilungen Deutsche Geophysikalische Gesellschaft, II/1998, pp 78-81.

Harms U. & T. Kohl, 1998, Geothermal effect of fluid invasion and uplift at major faults near the KTB drill site, Mitteilungen Deutsche Geophysikalische Gesellschaft, II/1998, p.82.

Kohl T. & L. Rybach, 1999, Coupled 3-D Simulations of Forced Fluid Flow Through Fractured, Hot Rock, Dynamics of Fluids in Fractured Rocks: Concepts and Recent Advances, Lawrence Berkeley National Laboratory, 160-163

Kohl, T., Rybach, L., 1999, Combined analyses of hydraulic and thermal data at the HDR test site Soultz-sous-Foręts. In: Proc. European Geothermal Conf. Basel ’99, F.-D. Vuataz (ed.), Vol. 2, 109-118

Kohl, T., 1999, Neuer Enthusiasmus in der Hot Dry Rock Gemeinschaft, Geothermie CH 1/99, 5-6

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presentations at major conferences

Romanowicz B., G. Roult & T. Kohl, 1987, The upper mantle degree two pattern as seen on the GEOSCOPE network; eigenfrequency and Q measurements, EOS Transactions, American Geophysical Union, 68(44), pp 1377

Harms U, E. Huenges, T. Kohl, 1994, Geothermal and fluid evolution of the Variscan crust deduced from the KTB drilling, Proc. Int. Mineral. Assoc., 16th Gen. Meeting, p 166

Kohl T. & L. Rybach, 1994, On the thermal situation at the KTB drill site, Proc. KTB Kolloquium Giessen, KTB Report, 94-2, p B96

Kohl T., Rybach L., 1995, Constraints of thermally different depth domains in the continental lithosphere, Proc. IUGG XXI General Assembly, Boulder CO, 21(B), p 6

Kohl T., Rybach L., 1995, Geothermal observables in deep boreholes; significance of structural information, Proc. IUGG XXI General Assembly, Boulder CO, 21(B), p 145

Kohl T., F.H. Weinlich, K. Bräuer, H. Kämpf, L. Rybach, G. Strauch & S. Weise, 1996, Evaluation of convectively driven heat flow by quantitative gas flow analysis near the KTB location, Proc. Goldschmidt Conference Heidelberg, Journal of Conf. Abstracts, Cambridge Publications, 1(1), pp 407-408

Kohl T., K.F. Evans, R.J. Hopkirk & L. Rybach, 1997, Coupled 3-D simulations of forced fluid flow through fractured, hot rock, Proc. EGS, Annales Geophysicae, III, p. C257

Kohl T. & L. Rybach, 1997, Heat transport processes in complex topographical settings, Proc. IASPEI, 29th General Assembly, 18-28 August, 1997 Thessaloniki, Greece, p. 414

Kohl T., 1998, Subsurface temperature signals in mountain area, Proc. EGS, Annales Geophysicae, I, C21

Kohl T. & L. Rybach, 1998, Estimating fluid flow behaviour in mid-crustal depth domains, Proc. EGS, Annales Geophysicae, I, C269.

Kohl T. & L. Rybach, 1998, Non-Darcian flow transients in crystalline rock, Proc. Mass transport in fractured aquifers and aquitards, Copenhagen, May 14-16, p.42

Kohl T. & L. Rybach, 1998, Analysis of crustal temperature fields by means of CO2 flux determination, Proc. The earth's thermal field and related research methods, Moscow, May 19-21, 132-134

Rybach L. & T. Kohl, 1998, Quantifying combined effects of thermal properties and processes, EOS Transactions, American Geophysical Union, im Druck

Kohl T, Busslinger A. & Rybach, L., 1999, Evaluation of thermally relevant processes for temperature prognosis in alpine tunnels, 26.7.1999, IUGG 22nd General Assembly 18th - 30th July 1999

Ehlers T. A., Armstrong Ph. A., Chapman D. S., Kohl T., 1999, Thermal evolution and exhumation history of the Wasatch normal fault, Utah, USA: Results from modelling, 30 July 1999, IUGG 22nd General Assembly 18th - 30th July 1999

Kohl, T.; Rybach, L., 1999, Characterisation of crustal heterogeneities by surface CO2, flux data, 21 April 1999, EGS 24th Gen. Assembly The Hague, 19-23 April 1999

Kohl, T.; Evans, K.; Rybach, L., 1999, Characterising fracture geometries at the HDR test site Soultz, 21 April 1999, EGS 24th Gen. Assembly The Hague, 19-23 April 1999

Kohl T. & Rybach L., 1999, Combined analyses of hydraulic, thermal and tracer data at the HDR test site Soultz-sous-Foręts September 29, 1999, Europ. Geothermal Conference Basel '99 September 28-30, 1999

Evans K. & Kohl T., 1999, Hydro-mechanical changes in the rock mass accompanying the stimulation of the deep wells at the European HDR site at Soultz-sous-Foręts, France, September 29, 1999, Europ. Geothermal Conference Basel '99 September 28-30, 1999

Jung R., Tran-Viet T., Kohl T & Weidler R, 1999, Productivity Enhancement by Massive Hydraulic Fracturing in the Granitic Basement of the Soultz HDR-Test-Site, September 29, 1999, Europ. Geothermal Conference Basel '99 September 28-30, 1999

Pribnow D., Kohl T., Jung R., Rybach L., Clauser C., 1999, The European HDR project in Soultz: An unconventional reservoir type?, Geothermal Res. Council Transactions, 23, pp 205-210, 21 October 1999: 1999 Geothermal Resources Council Annual Meeting, Reno, Nevada (ausgezeichnet mit GRC Best Paper Award)

Kohl T., Pribnow, D. F., 1999, Constraints for Deep Fluid Circulation at the HDR Site Soultz by new Thermal Data From 5 km Depth AGU 1999 Fall Meeting San Francisco, Dec. 13, 1999

Kohl T., 1999, Fluid flow behaviour in a fractured geothermal HDR reservoir, Univ. Salt Lake City 21.10.99 (Distinguished Lecture)

Kohl T., 1999, Fluid flow behaviour in a fractured geothermal HDR reservoir, ETH Zürich Erdw. Kolloquium 27.1.99

Kohl T., 1999, Nutzungsszenarien für eine nachhaltige geothermische Energieproduktion, Probevortrag ETH 6.7.99

Ehlers, T A., Armstrong, P A., Chapman, D S., Willett, S D., Kohl, T, 1999, Thermal Regime of Active Extensional Mountain Belts: Implications for Interpreting Exhumation Rates From Low-Temperature Thermochronometers, AGU 1999 Fall Meeting San Francisco, Dec. 16, 1999

Kohl T, Signorelli S, Rybach L., 1999, Revisiting Fission Track Uplift Rates by 3D Thermal Models, AGU 1999 Fall Meeting San Francisco, Dec. 16, 1999 (invited paper)

Kohl., T., Bächler, D., Rybach, L., 2000, Steps towards a comprehensive thermo-hydraulic analysis of the HDR test site Soultz-sous Foręts. In: Proc. World Geothermal Congress 2000, Kyushu-Tohoku, Japan, 6. Juni 2000, Morioka (Japan)

Kohl, T., Salton, M., Rybach, L. , 2000, Data analysis of the deep borehole heat exchanger plant Weissbad (Switzerland). In: Proc. World Geothermal Congress 2000, Kyushu-Tohoku, Japan, 7. Juni 2000, Morioka (Japan)

Kohl T, 2000, Das alpine Temperaturfeld als Tracer geodynamischer Vorgänge, 16 Juni 2000, Antrittsvorlesung ETH

Kohl, T.; Rybach, L. , 2000, The Role of Large-Scale Fault Systems at the Soultz HDR Site, 28 März 2000, MTC Meeting Baden (CH)

Kohl, T.; Signorelli, S.; Rybach, L. , 2000, Constraints on Palaeo-topography by revised Apatite FT uplift rates, 25 April 2000, EGS 25th Gen. Assembly Nice

Haeberli W., Kohl T. & Vonder Mühll D., 2000, Talik Formation and Geothermal Anomaly at the Alpine Permafrost Drill Site Murtel/Corvatsch, 29 April 2000, EGS 25th Gen. Assembly Nice

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major scientific reports

Evans K.F., T. Kohl, R.J. Hopkirk & L. Rybach, "Modelling of energy production from Hot Dry Rock systems" , Endbericht NEFF Projekt 359, Oktober 1991, 315 pp

Kohl T. & L. Rybach, "Hydraulisch-thermische Modellierung im Umfeld einer kontinentalen Tiefbohrung - Schweizer Beitrag zum KTB Projekt", Endbericht NF Projekt 21-29803.90, Juli 1994

Evans K.F., T. Kohl, R.J. Hopkirk & L. Rybach, "Studies of the nature of non-linear impedance to flow within the fractured granitic reservoir at the European Hot Dry Rock Project site at Soultz-sous-Foręts, France", Endbericht BBW Projekt 93.0010, Januar 1996, 144 pp

Kohl T. & L. Rybach, "Hydraulisch-thermische Modellierung im Umfeld einer kontinentalen Tiefbohrung - Schweizer Beitrag zum KTB Projekt", Endbericht NF Project 20-039251.93/1, September 1996

Bräuer K., G. Strauch, H. Kämpf, S. Weise, F.H. Weinlich & T. Kohl, "Modellierung und Bewertung des konvektiven Wärmeflusses zur KTB Lokation über die Quantifizierung des Gasflusses im Umfeld der KTB sowie seine chemische und isotopische Charakterisierung", Endbericht DFG Projekte Br1396/3 Ka902/6 Str376/4 & We1546/2, Januar 1997

Evans K.F., T. Kohl & L. Rybach, "Analysis of the hydraulic behaviour of the 3.5 km deep reservoir during the 1995-1997 test series, and other contributions to the European Hot Dry Rock Project Soultz-sous-Foręts, France", Endbericht BBW Projekt 95.0673-2, Juli 1998, 192 pp

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22.09.2000

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