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 Research Interests - Publications - Cruise Reports - Lecture Notes - Thermistor String

Research Interests

From a scientific point of view, the complexity of the ocean demands a "multidisciplinary" approach for understanding. I do share this view and the oceanographic projects I have contributed to reflect this: Frisian Front Project, Integrated North Sea Project, “PROcesses of Vertical Exchange in Shelf Seas”, Faeroe-Shetland Channel project “PROcesses above Continental Slopes”. However, the successful multidisciplinary project should be firmly based on the proper understanding of the relevant mono-disciplinary processes and on the communicative ability of the investigators beyond the borders of their disciplines. Within the scientific discipline of physical oceanography my interest focuses on the dynamical effects of density variations, ranging from diapycnal turbulent mixing via modification of oscillatory currents to internal waves. Over the years my research has always been funded on the analysis of measurements obtained at sea, with emphasis on those from moored instruments. Slowly, my working area changed from shallow seas (North Sea, Scotian shelf) via the continental slope to deep seas (Mediterranean Sea) and ocean (Bay of Biscay, Canary Basin, Brazil Basin). Meanwhile, my interest changed from the dynamical impact of fronts and the modifications of barotropic currents by stratification to internal wave fluxes and interactions. Attempts to estimate internal wave band fluxes directly using ADCP and thermistor string continued in a somewhat exaggerated interest in the working of oceanographic instrumentation and the development of specialized instrumentation (NIOZ Thermistor String). This interest resulted in the measurement of very sharp fronts, shock-waves and their impact on sediment resuspension and plankton dynamics.

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Publications

2013

 

van Haren, H., T.J. Compton, 2013. Diel vertical migration in deep sea plankton is finely tuned to latitudinal ans seasonal say length. PLoS ONE, 8, e64435 doi:10.1371/journal.pone.0064435.(download as PDF-file)

Xie, X., Shang, X., van Haren, H., Chen, G., 2013. Observations of enhanced nonlinear instability in the surface reflection of internal tides. Geophys. Res. Lett., 40, 1580-1586, doi:10.1002/glr.50322.(download as PDF-file)

van Haren, H., M. Ribó, P. Puig, 2013. (Sub-)inertial wave boundary turbulence in the Gulf of Valencia. J. Geophys. Res.Oceans, 118, 2067-2073, doi:10.1002/jgrc.20168.(download as PDF-file)

Gerkema, T., L.R.M. Maas, and H. van Haren, H., 2013. A note on the role of mean flows in Doppler shifted frequencies. J. Phys. Oceanogr., 43, 432-443.(download as PDF-file)

van Haren, H., 2013. Bottom-pressure observations of deep-sea internal hydrostatic and non-hydrostatic motions. J. Fluid Mech., 714, 591-611.(download as PDF-file)

2012

Gerkema, T. and H. van Haren, 2012. Absence of internal tidal beams due to non-uniform stratification. J. Sea Res., 74, 2-7.(download als PDF-file)

van Haren, H., 2012. Ocean’s internal motion: a short review of NIOZ thermistor string observations. J. Sea Res., 74, 8-15.(download als PDF-file)

Gostiaux, L. and H. van Haren, 2012. Fine-structure contamination by internal waves in the CanaryBasin. J. Geophys. Res., 117, C11, doi:10.1029/2012JC008064.(download als PDF-file)

van Haren, H., 2012.
Energieverlies door brekende interne golven in zee en oceaan. Ned. Tijdschr. v. Nat., October 2012, 398-402 (in Dutch).
(download als PDF-file)

Rijkenberg, M.J.A., S. Steigenberger, C.F. Powell, H. van Haren, M.D. Patey, A.R. Baker, E.P. Achterberg, 2012.
Fluxes and distribution of dissolved iron in the eastern (sub-) tropical North Atlantic Ocean. Glob. Biogeochem. Cycl., 26, GB3004, doi:10.1029/2011GB004264.
(download as PDF-file)

van Haren, H., 2012.
High-frequency bottom-pressure and acoustic variations in a sea strait: internal wave - turbulence. Ocean Dyn., 62, 1123-1137.
(download as PDF-file)

van Haren, H., and L. Gostiaux, 2012.
Energy release through internal wave breaking. Oceanography, 25(2):124–131, http://dx.doi.org/10.5670/oceanog.2012.47
(download as PDF-file)

Gerringa, L.J.A., A.-C. Alderkamp, P. Laan, C.-E. Thuróczy, H.J.W. De Baar, M.M. Mills, G.L. van Dijken, H. van Haren, K.R. Arrigo, 2012. Iron from melting glacier fuels the phytoplankton blooms in Amundsen Sea (Southern Ocean): iron biogeochemistry. Deep-Sea Res. II, 71-76: 16-31.
(download as PDF-file)

van Haren, H., and L. Gostiaux, 2012.
Detailed internal wave mixing observed above a deep-ocean slope. J. Mar. Res., 70, 173-197.
(download as PDF-file)

van Haren, H., L. Gostiaux, M. Laan, M. van Haren, E. van Haren, and L.J.A. Gerringa, 2012.
Internal wave turbulence near a Texel beach. PLoS ONE, 7(3), e32535, doi: 10.1371/journal.pone.0032535.
(download as PDF-file)


2011

van Haren, H., 2011.
Internal wave-turbulence pressure above sloping sea bottoms. J. Geophys. Res., 116, C12004, doi:10.1029/2011JC007085.
(download as PDF-file)

van Haren, H. and L. Gostiaux, 2011.
Large internal waves advection in very weakly stratified deep Mediterranean waters. Geophys. Res. Lett., 38, L22603, doi:10.1029/ 2011GL049707.
(download as PDF-file)

Hillebrand, T., J. van Heerwaarden, M. Laan, R. Bakker, R. Groenewegen and H. van Haren, 2011.
Autonomous and rapid deployment of a compact taut-wire mooring. Deep-Sea Res. I, 58, 1158-1162.
(download as PDF-file)

van Haren, H. et al. (ANTARES-collaboration), 2011.
Acoustic and optical variations during rapid downward motion episodes in the deep north-western Mediterranean Sea. Deep-Sea Res. I, 58, 875-884.
(download as PDF-file)

Xie, X.-H., X.-D. Shang, H. van Haren, G.-Y. Chen and Y.-Z. Zhang, 2011. Observations of parametric subharmonic instability-induced near-inertial waves equatorward of the critical diurnal latitude. Geophys. Res. Lett., 38, L05603,doi:10.1029/2010GL046521.
(download as PDF-file)

van Haren, H. (on behalf of the ANTARES collaboration), 2011.
Meso- and small-scale vertical motions in the deep Western Mediterranean. Nucl. Instr. Meth. A, 626-627, S84-S86.
(download as PDF-file)


2010

H. van Haren, L.R.M. Maas and T. Gerkema, 2010.
Patchiness in internal tidal beams. J. Mar. Res., 68, 237-257.
(download as PDF-file)

Bouruet-Aubertot, P., H. van Haren and M.-P. LeLong, 2010.
Stratified inertial subrange inferred from in situ measurements in the bottom boundary layer of Rockall Channel. J. Phys. Oceanogr., 40, 2401-2417.
(download as PDF-file)

H. van Haren, 2010.
Very near-bottom tidal straining in a sea strait, Geophys. Res. Lett., 37, L16603, doi:10.1029/2010GL044186.
(download as PDF-file)

H. van Haren, 2010.
Rapid swing and spin of [deep] taut-wire-moored instruments. Deep-Sea Res. I, 57, 909-917.
(download as PDF-file)

Gostiaux, L., and H. van Haren, 2010.
Extracting meaningful information from uncalibrated backscattered echo intensity data. J. Atmos. Ocean. Technol., 27, 943-949.
(download as PDF-file)

van Haren, H., and L. Gostiaux, 2010.
A deep-ocean Kelvin-Helmholtz billow train. Geophys. Res. Lett., 37, L03605, doi:10.1029/2009GL041890.
(download as PDF-file)
See also:
- Cover Geophysical Research letters, 16th February 2010
- In Deep Sea, Waves With a Familiar Curl - New York Times, 19th April 2010


2009

Roberts, J.M., A.J. Davies, L.A. Henry, L.A. Dodds, G.C.A. Duineveld, M.S.S. Lavaleye, C. Maier, R.W.M. van Soest, M.J.N. Bergman, V. Hühnerbach, V.A.I. Huvenne, D.J. Sinclair, T. Watmough, D. Long, S.L. Green and H. van Haren (2009)
Mingulay reef complex: an interdisciplinary study of cold-water coral habitat, hydrography and biodiversity. Mar. Ecol. Prog. Ser., 397, 139-151.
(download as PDF-file)

van Haren, H. (2009)
Ship-induced effects on bottom-mounted acoustic current meters in shallow seas. Cont. Shelf Res., 29, 1809-1814.
(download as PDF-file)

van Haren, H., M. Laan, D.-J. Buijsman, L. Gostiaux, M.G. Smit and E. Keijzer (2009)
NIOZ3: independent temperature sensors sampling yearlong data at a rate of 1 Hz. IEEE J. Ocean. Eng., 34, 315-322.
(download as PDF-file)

van Haren, H. and Millot, C. (2009)
Slantwise convection: a candidate for homogenization of deep newly formed dense waters. Geophys. Res. Lett., 36, L12604, 2009GL038736.
(download as PDF-file)

van Haren, H. (2009)
Using high-sampling rate ADCP for observing vigorous processes above sloping [deep] ocean bottoms. J. Mar. Sys., 77, 418-427.
(download as PDF-file)

van Haren, H., and L. Gostiaux (2009)
High-resolution open-ocean temperature spectra. J. Geophys. Res., 114, C05005, doi:10.1029/2008JC004967.
(download as PDF-file)

van Haren, H. (2009)
High-frequency vertical current observations in stratified seas and ocean. Cont. Shelf Res., 29, 1251-1263.
(download as PDF-file)

Davies, A.J., G.C.A. Duineveld, M.S.S. Lavaleye, M.I.N. Bergman, H. van Haren and J. M. Roberts (2009)
Downwelling and deep-water bottom currents as food supply mechanisms to the cold-water coral Lophelia pertusa (Scleractinia) at the Mingulay Reef Complex. Limnol. Oceanogr., 54, 620-629.
(download as PDF-file)


2008

van Haren, H. (2008)
A comparison between vertical motions measured by ADCP and inferred from temperature data. Ocean Science, 4, 215-222.
(download as PDF-file)

Gerkema, T., Zimmerman, J.T.F., Maas L.R.M., van Haren, H. (2008)
Geophysical and astrophysical fluid dynamics beyond the traditional approximation. Rev. Geophys., 46, RG2004, doi:10.1029/2006RG000220.
(download as PDF-file)

Burchard, H., P.D. Craig, J.R. Gemmrich, H. van Haren, P.-P. Mathieu, H.E.M. Meier, W.A.M. Nimmo Smith, H. Prandke, T.P. Rippeth, E.D. Skyllingstad, W.D. Smyth, D.J.S. Welsh, and H.W. Wijesekera (2008)
Observational and numerical modeling methods for quantifying coastal ocean turbulence and mixing. Progr. Oceanogr., 76, 399-442.
(download as PDF-file)

van Haren, H. (2008)
Abrupt transitions between gyroscopic and internal gravity waves: the mid-latitude case. J. Fluid Mech., 598, 67-80.
(download as PDF-file)

van Haren, H. (2008)
Self-regulation of deep-ocean internal wave continuum: Observations on related near-inertial shear and high-frequency vertical motions, Geophys. Res. Lett., 35, L04606, doi:10.1029/2007GL032697.
(download as PDF-file)


2007

van Haren, H. (2007)
Longitudinal and topographic variations in North-Atlantic tidal and inertial currents around latitudes 30 ± 10°N. J. Geophys. Res., 112, C10020, doi:10.1029/2007JC004193.
(download as PDF-file)

Gerkema, T., van Haren, H. (2007)
Internal tides and energy fluxes over Great Meteor Seamount. Ocean Sci., 3, 441-449.
(download as PDF-file)

van Haren, H. (2007)
Monthly periodicity in acoustic reflections and vertical motions in the deep ocean, Geophys. Res Lett., 34, L12603, doi:10.1029/2007GL029947.
(download as PDF-file)

van Haren, H. (2007)
Unpredictability of internal M2. Ocean Science, 3, 337-344.
(download as PDF-file)

van Haren, H. (2007)
Inertial and tidal shear variability above Reykjanes Ridge. Deep-Sea. Res. I, 54, 856-870.
(download as PDF-file)

van Aken, H.M., van Haren, H., and Maas, L.R.M. (2007)
The high-resolution vertical structure of internal tides and near-inertial waves, measured with an ADCP over the continental slope in the Bay of Biscay. Deep-Sea Res. I, 54, 533-556.
(download as PDF-file)

van Haren, H. (2007)
Echo intensity data as a directional antenna for observing processes above sloping ocean bottoms. Ocean Dyn., 57, 135-149.
(download as PDF-file)

van Haren, H. (2007)
Shear at the critical diurnal latitude. Geophys. Res. Lett., 34, L06601, doi:10. 1029/2006GL028716.
(download as PDF-file)


2006

van Haren, H. (2006)
Nonlinear motions at the internal tide source. Geophys. Res. Lett., 33, L11605, doi:10.1029/2006GL025851.
(download as PDF-file)

Hosegood, P. and van Haren, H. (2006)
Sub-inertial modulation of semi-diurnal currents over the continental slope in the Faeroe-Shetland Channel. Deep-Sea Res. I, 53, 627-655.
(download as PDF-file)

van Haren, H. (2006)
Asymmetric vertical internal wave propagation. Geophys. Res. Lett., 33, L06618, doi:10.1029/2005GL025499.
(download as PDF-file) 

van Haren, H., and C. Millot (2006).
Determination of buoyancy frequency in weakly stable waters. J. Geophys. Res., 111, C03014, 10.1029/2005JC003065.
(download as PDF-file)

van Haren, H., C. Millot and I. Taupier-Letage (2006).
Fast deep sinking in Mediterranean eddies. Geophys. Res. Lett., 33, L04606, doi: 10. 1029/ 2005GL025367.
(download as PDF-file)

Bonnin, J., van Haren, H., G.-J. Brummer and P. Hosegood (2006).
Burst resuspension of seabed material at the foot of the continental slope in the Rockall Channel. Mar. Geol., 226, 167-184.
(download as PDF-file)


2005

van Haren, H. and C. Millot (2005)
Gyroscopic waves in the Mediterranean Sea. Geophys. Res. Lett., 32, L24614, doi:10.1029/2005GL023915.
(download as PDF-file)

van Haren, H. (2005)
Tidal and near-inertial peak variations around the diurnal critical latitude, Geophys. Res. Lett, 32, L23611, doi:10.1029/2005GL024160.
(download as PDF-file)

van Aken, H. M., L.R.M. Maas and van Haren, H. (2005)
Observations of inertial wave events near the continental slope off Goban Spur. J. Phys. Oceanogr., 35, 1329-1340.
(download as PDF-file)

Hosegood, P., van Haren, H. and C. Veth (2005)
Mixing within the interior of the Faeroe-Shetland Channel. J. Mar. Res., 63, 529-561.
(download as PDF-file)

van Haren, H., R. Groenewegen, M. Laan and B. Koster (2005)
High sampling rate thermistor string observations at the slope of Great Meteor Seamount. Ocean Science, 1, 17-28, SRef-ID: 1812-0792/os/2005-1-17.
(download as PDF-file)

van Haren, H. (2005)
Details of stratification in a sloping bottom boundary layer of Great Meteor Seamount. Geophys. Res. Lett., 32, L07606, doi:10.1029/2004GL022298.
(download as PDF-file)

van Haren, H. (2005)
Internal waves near the buoyancy frequency in a narrow wave-guide. J. Sea Res., 53, 121-129.
(download as PDF-file)

van Haren, H. (2005)
Sharp near-equatorial transitions in inertial motions and deep-ocean step-formation. Geophys. Res. Lett., 32, L01605, doi:10.1029/2004GL021630.
(download as PDF-file)


2004

van Haren, H. (2004)
Spatial variability of deep-ocean motions above an abyssal plain. J. Geophys. Res., 109, C12014, doi:10.1029/2004JC002558.
(download as PDF-file)

van Haren, H., L. St Laurent and D. Marshall (2004)
Small and mesoscale processes and their impact on the larger scale: an introduction. Deep-Sea Res. II, 51, 2883-2887.
(download as PDF-file)

Hosegood, P. and van Haren, H. (2004)
Near-bed solibores over the continental slope in the Faeroe-Shetland Channel. Deep-Sea Res. II, 51, 2943-2971.
(download as PDF-file)

van Haren, H. and C. Millot (2004)
Rectilinear and circular inertial motions in the Western Mediterranean Sea. Deep-Sea Res. I, 51, 1441-1455.
(download as PDF-file & Erratum: download as PDF-file)

van Haren, H. and M.J. Howarth (2004)
Enhanced stability during reduction of stratification in the North Sea. Cont. Shelf Res., 24, 805-819.
(download as PDF-file)

Hosegood, P., J. Bonnin and van Haren, H. (2004)
Solibore-induced sediment resuspension in the Faeroe-Shetland Channel. Geophys. Res. Lett.,31, L09301, doi:10.1029/2004GL019544.
(download as PDF-file)

van Haren, H. (2004)
Bandwidth similarity at inertial and tidal frequencies in kinetic energy spectra from the Bay of Biscay. Deep-Sea Res. I, 51, 637-652.
(download as PDF-file)

van Haren, H. (2004)
Some observations of non-linearly modified internal wave spectra. J. Geophys. Res., 109, C03045, doi:10.1029/2003JC002136.
(download as PDF-file)

van Haren, H. (2004)
Incoherent internal tidal currents in the deep-ocean. Ocean Dyn., 54, 66-76.
(download as PDF-file)

van Haren, H., (2004)
Spectra of poorly resolved ocean data. Ocean Dyn., 54, 49-53.
(download as PDF-file)

van Haren, H. (2004)
Current spectra under varying stratification conditions in the central North Sea. J. Sea Res., 51, 77-91.
(download as PDF-file)


2003

van Haren, H. and C. Millot (2003)
Seasonality of internal gravity waves kinetic energy spectra in the Ligurian Basin. Oceanol. Acta, 26, 635-644, doi:10.1056/S0399-1784(03)00062-8.
(download as PDF-file)

van Haren, H. (2003)
On the polarization of oscillatory currents in the Bay of Biscay. J. Geophys. Res., 108(C9), 3290, doi:10.1029/2002JC001736.
(download as PDF-file)

Hosegood, P. and van Haren, H. (2003)
Ekman-induced turbulence over the continental slope in the Faeroe-Shetland Channel as inferred from spikes in current meter observations. Deep-Sea Res. I, 50, 657-680.
(download as PDF-file)

van Haren, H., M.J. Howarth, K. Jones and I. Ezzi (2003)
Autumnal reduction of stratification in the northern North Sea and its impact. Cont. Shelf Res., 23, 177-191.
(download as PDF-file)


2002

Ridderinkhof, H., van Haren, H., F. Eijgenraam and T. Hillebrand (2002)
Ferry observations on temperature, salinity and currents in the Marsdiep tidal inlet between the North Sea and Wadden Sea. In N.C. Flemming et al. (eds). Operational oceanography: implementation at the European and regional scales. Proc. 2nd Intl. conf. on EuroGOOS, Elsevier, Amsterdam, 139-147.
(download as PDF-file)

Bonnin, J., W. van Raaphorst, G.-J. Brummer, van Haren, H., and H. Malschaert (2002)
Intense mid-slope resuspension of particulate matter in the Faeroe-Shetland Channel; short-term deployment of near-bottom sediment traps. Deep-Sea Res. I, 49, 1485-1505.
(download as PDF-file)

van Haren, H., L. Maas and H. van Aken (2002)
On the nature of internal wave spectra near a continental slope. Geophys. Res. Lett., 29(12), 10.1029/2001GL014341.
(download as PDF-file) (corrigendum: PDF-file)

Gemmrich, J. and van Haren, H. (2002)
Internal wave band kinetic energy production: flat vs sloping bottom. J. Sea Res.,47, 209-222.
(download as PDF-file)

Howarth, M.J., J.H. Simpson, J. Sündermann and van Haren, H. (2002)
Processes of Vertical Exchange in Shelf Seas (PROVESS). J. Sea Res., 47, 199-208.
(download as PDF-file)

Gemmrich, J.R. and van Haren, H. (2002)
Internal wave band eddy fluxes in the bottom boundary layer above a continental slope. J. Mar. Res., 60, 227-253.
(download as PDF-file)


2001

Gemmrich, J.R. and van Haren, H. (2001)
Thermal fronts generated by internal waves propagating obliquely along the continental slope. J. Phys. Oceanogr., 31, 649-655.
(download as PDF-file)

van Haren, H. (2001)
Estimates of sea level, waves and winds from a bottom-mounted ADCP in a shelf sea. J. Sea Res., 45, 1-14.
(download as PDF-file)

van Haren, H., R. Groenewegen, M. Laan and B. Koster (2001)
A fast and accurate thermistor string. J. Atmos. Oceanic Technol., 18, 256-265.
(download as PDF-file)

van Raaphorst, W., H. Malschaert, van Haren, H., W. Boer and G.-J. Brummer (2001)
Cross-slope zonation of erosion and deposition in the Faeroe-Shetland Channel, North Atlantic Ocean. Deep-Sea Res. I, 48, 567-591.
(download as PDF-file)


2000

van Haren, H. (2000)
Comment on "An efficient method for determining the significance of covariance estimates". J. Atmos. Oceanic Technol., 17, 885-886.
(download as PDF-file)

van Haren, H. (2000)
Properties of vertical current shear across stratification in the central North Sea. J. Mar. Res., 58, 465-491.
(download as PDF-file)


1999

van Haren, H., L. Maas, J.T.F. Zimmerman, H. Ridderinkhof and H. Malschaert (1999)
Strong inertial currents and marginal internal wave stability in the central North Sea. Geophys. Res. Lett., 26, 2993-2996.
(download as PDF-file)


1998

van Haren, H., D.K. Mills and L.P.M.J. Wetsteyn (1998)
Detailed observations of the phytoplankton spring bloom in the stratifying central North Sea. J. Mar. Res., 56, 655-680.
(download as PDF-file)

van Raaphorst, W., H. Malschaert and van Haren, H. (1998)
Tidal resuspension and deposition of particulate matter in the Oyster Ground, North Sea. J. Mar. Res., 56, 257-291.
(download as PDF-file)


1997

van Haren, H., P. Ruardij, H. Ridderinkhof and D. Mills (1997)
The Integrated North Sea Programme (INP). In J.H. Stel et al. (eds). Operational oceanography, the challenge for European cooperation. Proceedings of the first Intl. conf. on EuroGOOS, Elsevier, Amsterdam, 529-538.

Ruardij, P., van Haren, H. and H. Ridderinkhof (1997)
The impact of thermal stratification on phytoplankton and nutrient dynamics in shelf seas: a model study. J. Sea Res., 38, 311-331.
(download as PDF-file)


1996

van Haren, H. (1996)
Correcting false thermistor string data. Cont. Shelf Res., 16, 1871-1883.
(download as PDF-file)


1994

van Haren, H., N. Oakey and C. Garrett (1994)
Measurements of internal wave band eddy fluxes above a sloping bottom. J. Mar. Res., 52, 909-946.
(download as PDF-file)


1990

van Haren, J.J.M. (1990)
Observations on the horizontal and vertical structure of currents at sub-tidal frequencies in the central North Sea. Neth. J. Sea Res., 27, 1-23.

van Haren, J.J.M. and J.C.A. Joordens (1990)
Observations of physical and biological parameters at the transition between the southern and central North Sea. Neth. J. Sea Res., 25, 351-364.

van Haren, J.J.M. (1990)
Sub-tidal dynamics of a near-coastal zone in the North Sea. Neth. J. Sea Res., 25, 31-44.

van Haren, J.J.M. (1990)
Observations on the structure of currents at tidal and sub-tidal frequencies in the central North Sea. PhD thesis, State University of Utrecht, 102 pp.


1989

Bosveld, F.C., van Haren, J.J.M. and F.G.J. Absil (1989)
The measurement of [U], [V] and [uv] inside the turbulent spot using conditionally sampled hot-wire anemometer signals. Appl. Sci. Res., 46, 291-307

1987

van Haren, J.J.M. and L.R.M. Maas (1987)
Temperature and current fluctuations due to tidal advection of a front. Neth. J. Sea Res., 21, 79-94.

Maas, L.R.M. and van Haren, J.J.M. (1987)
Observations on the vertical structure of tidal and inertial currents in the central North Sea. J. Mar. Res., 45, 293-318.
(download as PDF-file)

 

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Cruise Reports

2013

van Haren, H., (2013). Cruise report KM3NeT13: R/V Pelagia cruise 64PE367, 02-15 April 2013, NIOZ, 25 pp.(download as PDF-file)

2011

van Haren, H., (2011). Cruise report KM3NeT11: R/V Meteor cruise M83-4, 24 January – 6 February 2011, NIOZ, 41 pp.(download as PDF-file)


2010

van Haren, H., (2010) Cruise report KM3NeT09: R/V Pelagia cruise 64PE316, 13-19 December 2009, NIOZ, 27 pp. (download as PDF-file)


2009

van Haren, H., (2009). Cruise report bsik/LOCO-IW09: R.V. Pelagia cruise 64PE308, 21 June – 13 July 2009, NIOZ, 48 pp.(download as PDF-file)


2007

van Haren, H., (2007). Cruise report bsik/LOCO-IW07: R.V. Pelagia cruise 64PE279, 20 November - 16 December 2007, NIOZ, 48 pp.(download as PDF-file)


2006

van Haren, H., (2006). Cruise report bsik/LOCO-IW06: R.V. Pelagia cruise 64PE248, 17 May - 12 June 2006, NIOZ, 40 pp.(download as PDF-file)


2005

van Haren, H., (2005). Towed ADCP - Bay of Biscay: R/V Pelagia cruise 64PE235, 20-27 April 2005, NIOZ, 15 pp.(download as PDF-file)


2004

van Haren, H., (2004). LOCO - IW04-Canary Basin: R.V. Pelagia cruise 64PE231, 14 October-07 November 2004, NIOZ, 39 pp.(download as PDF-file)

 

2003

van Haren, H., (2003). LOCO - IW03, cruise LOCO03-Canary Basin: R.V. Pelagia cruise 64PE208, 06-19 March 2003. NIOZ, 30 pp.(download as PDF-file)

 

2002

van Haren, H., (2002). ROCS, cruise ROCS02-1/2: R.V. Pelagia cruises 64PE198/201, ROCS02-1: 15-20 July, 2002, ROCS02-2: 29 August – 06 September, 2002. NIOZ, 31 pp.(download as PDF-file)

 

1999

van Haren, H. and W. van Raaphorst,, (1999). PROcesses on the Continental Slope (PROCS), cruise PROCS99-1: R.V. Pelagia cruise 64PE137: R.V. Pelagia 14 April – 05 May, 1999. NIOZ, 43 pp.(download as PDF-file ~17 MB)

van Haren, H., (1999). PROcesses of Vertical Exchange in Shelf Seas (PROVESS), MAST III contract # MAS3-CT97-0159, Southern North Sea experiment cruise S-1: R.V. Pelagia 29 March – 09 April, 1999 (R.V. Pelagia cruise 64PE136). NIOZ, 41 pp.
(download as PDF-file)

 

1998

van Haren, H., (1998). PROcesses of Vertical Exchange in Shelf Seas (PROVESS), MAST III Project # 96 1032, Northern North Sea experiment cruise N-3: R.V. Pelagia 19 – 30 October, 1998 (R.V. Pelagia cruise 64PE125). NIOZ, 32 pp.
(download as PDF-file ~11 MB)

 

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Lecture Notes

1992

van Haren, H., (1992)
The measurement of currents at sea. Mooring design and current meter data analysis. UNESCO training workshop on observation and analysis of currents at sea, Doha, Qatar, 1-9 November, 64 pp.
(download as PDF-file ~10 MB)

 

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Thermistor String

 NIOZ High-sampling rate Thermistor String:

Internal wave - Turbulence data

 

The ocean interior is constantly in motion due to "internal" waves that are supported by the stable vertical density stratification. These waves are much slower than waves at the surface. Their typical periods range between 10 minutes and 1 day. However, their vertical amplitudes are typically 10 m and can grow over 100 m!

Using new detailed deep-ocean measurements we can show constantly varying but fairly smooth internal waves (video 1 & 2).

 Video 1

These data are from the open ocean Canary Basin (North-Atlantic Ocean) between 1390 and 1520 m. Video 1 (above) contains 3 panels: 24 hours span, 8 hours and 2 h 40 min. Video 2 (below) is the middle panel.

 Video 2

Great Meteor Seamount

Similar measurements at 550 m near the top of an underwater volcano, Great Meteor Seamount, in the same area show large breaking waves up to 50 m above the bottom and passing within a minute (video 3 below).

Video 3

These waves are so turbulent that they sweep up sediment 1000 times better than tidal currents in the area. Also, very small-scale turbulence is seen throughout the rest of the wave period.

The above data are collected using a novel set of 110 independent temperature sensors developed at NIOZ. Together these sensors constitute "NIOZ3", the first stand-alone-sensors successor of cabled NIOZ thermistor strings NIOZ1 and NIOZ2. In contrast with the former models, NIOZ3 has no cables between the sensors and communicates via an inductive link with a programming and synchronizing device. It can measure 1.5 years at a rate of 1 Hz and still resolve temperature better than 0.0001°C.

The knowledge of NIOZ3 has been improved to a smaller size NIOZ4 sensor, which runs on a single AA battery for the same duration of time. Its 2012 version has full compass and tilt sensor capabilities. The performance of these sensors is similar to that of NIOZ3, see large breaking waves observed above a methane seep site around 900 m depth off New Zealand.

The above image and videos are all from 1D (vertical) arrays, but internal wave - turbulence developments are essentially 3D. A first attempt to launch a 3D single-go mooring array will be made in November 2012. This NIOZ-development consists of 5 mooring lines, 100 m and will hold 515 thermistors. It will be transported in compact (folded) form, to be unfolded overboard just prior to deployment (see below).

 

 

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