Publications of Ernst J.O. (Ejo) Schrama 

Associate Professor
Astrodynamics and Satellite Systems

Faculty of Aerospace Engineering
Kluyverweg 1, 2629 HS Delft, The Netherlands
e-mail: e.j.o.schrama@tudelft.nl

I appreciate all efforts of scopus and world of knowledge, but they have a long way to go to get my bibliography complete. The list below was collected over the years and is complete to the best of my knowledge.

2011

Schrama E.J.O., B. Wouters, B. Vermeersen, Present day regional mass loss of Greenland observed with satellite gravimetry, accepted for Surveys in Geophysics [A32]

Schrama, E.J.O., and B. Wouters (2011), Revisiting Greenland ice sheet mass loss observed by GRACE, J. Geophys. Res., 116, B02407, doi:10.1029/2009JB0068 [pdf] [A31]

Johannes Bouman, Sophie Fiorot, Martin Fuchs, Thomas Gruber, Ernst Schrama, Christian Tscherning, Martin Veicherts, Pieter Visser (2011), GOCE Gravity Gradients along the Orbit, under review in Journal of Geodesy. [A30]

2010

Schrama, E.J.O. and B. Wouters, Surface mass loading estimates from GRACE and GPS (2010) IAG Symposia Gravity, Geoid and Earth Observation, Springer-Verlag Berlin Heidelberg 2010 10.1007/978-3-642-10634-7_84 [online] [P17]


Schrama E.J.O., M. Naeije, Y. Yi, P. Visser, and C. Shum (2010) CryoSat-2 Precise Orbit Determination and Indirect Calibration of SIRAL End of Commissioning Phase Report, ESA contract report, section A&S TU Delft [pdf] [R22]

2009

Michiel van den Broeke, Jonathan Bamber, Janneke Ettema, Eric Rignot, Ernst Schrama, Willem Jan van de Berg, Erik van Meijgaard, Isabella Velicogna, Bert Wouters, Partitioning Recent Greenland Mass Loss, Science 13 November 2009:Vol. 326. no. 5955, pp. 984 - 986, DOI: 10.1126/science.1178176, [pdf] [A29]

Johannes Bouman,  Sietse Rispens, Thomas Gruber,  Radboud Koop, Ernst Schrama, Pieter Visser, Carl Christian Tscherning, Martin Veicherts, Pre-processing of gravity gradients at the GOCE High-level Processing Facility, (2009) Journal of Geodesy, [online first] [A28]

2008

Wouters, B., D. Chambers, and E. J. O. Schrama (2008), GRACE observes small-scale mass loss in Greenland, Geophys. Res. Lett., 35, L20501, doi:10.1029/2008GL034816. [pdf] [A27]

2007

Lebbink, L.P. , Van Beelen, C. , Evertse, M.V.C. , Evertsz, C.M. , Huiskamp, W.S. , Huiszoon, G.F., Oud, G.T. , Perez Lebbink, L.A.J. , Reijnst, R. , Van Schie, B.S.M. , Spiteri, R.M.C. , Vanbavinckhove, G. , Schrama, E.J.O., Amini, R., Brouwer, G.F., Vermeersen, L.L.A.  (2007) Design of an asteroid deflection mission - Gravitational traction applied, International Astronautical Federation - 58th International Astronautical Congress 2007 Volume 12, 2007, Pages 8073-8083 [P16]

Daniel J. Twigt, Erik D. De Goede, Ernst J.O. Schrama, Herman Gerritsen, Analysis and modeling of the seasonal South China Sea temperature cycle using remote sensing, Ocean Dynamics, DOI 10.1007/s10236-007-0123-4, pp 1-18, 2007 [pdf] [A26]

 

B. Wouters, E.J.O. Schrama, Improved Accuracy of GRACE Gravity Solutions through Empirical Orthogonal Function Filtering of Spherical Harmonics, Geophysical Research Letters, Vol 34, L23711, doi:10.1029/2007GL032098, 2007. [pdf] [A25]

Ernst J.O. Schrama, Bert Wouters and David A. Lavallée, Signal and Noise in Gravity Recovery and Climate Experiment (GRACE) observed surface mass variations, Vol. 112, B08407, doi:10.1029/2006JB004882, 2007 [pdf] [A24]

Julie Pietrzak, Anne Socquet, David Ham, Wim Simons, Christophe Vigny, Robert Jan Labeur, Ernst Schrama, Guus Stelling and Deepak Vatvani, Defining the source region of the Indian Ocean Tsunami from GPS, altimeters, tide gauges and tsunami models, Earth and Planetary Science Letters,  Volume 261, Issues 1-2, 15 September 2007, Pages 49-64,   doi:10.1016/j.epsl.2007.06.002, 2007 [pdf]  [A23]

Ernst J.O. Schrama and Pieter N.A.M. Visser (2007), Accuracy assessment of the monthly GRACE geoids based upon a simulation, Journal of Geodesy 81, 67-80, DOI 10.1007/s00190-006-0085-1 [pdf] [A22]

2006

M.C. Naeije, E.J.O. Schrama, Detailed Ocean Tides, GO-2 final report, Ch. Astrodynamics and Satellite Systems, L-LR-03-AS, 2006 [R21]

J. Kusche, E.J.O. Schrama, M.J.F. Janssen, Continental hydrology retrieval from GPS time series and GRACE gravity solutions, Chapter 75 (pages 517 -- 522) in the IAG symposium proceedings, Vol 130, Cairns, Australia 22-26 August 2005, Issued by Springer verlag  ISBN-10 3-540-49349-5  [P15]

 

M. Naeije, E. Schrama, E. Doornbos and R. Scharroo (2006) The role of RADS in building the 15-year altimeter record, Proceedings of the Symposium on 15 Years of Progress in Radar Altimetry 13-18 March 2006, Venice, Italy, ESA SP-614, July 2006, ISBN 92-9092-925-1 [P14]


Utilization of Space
, Today and Tomorrow, Feuerbacher, Berndt; Stoewer, Heinz (Eds.) 2006, XX, 410 p. 315 illus., Hardcover ISBN: 3-540-25200-2, contribution by Ernst Schrama to chapter 6, pp 131-164. [info] [B1] (also as: Vermeersen, Bert; Noomen, Ron; Schrama, Ernst; Visser, Pieter, Geodynamics, Progress in Astronautics and Aeronautics. Vol. 211, pp. 131-166. 2005)

 

Ditmar P. Kuznetsov V van Eck van der Sluijs A.A. Schrama E. and Klees R. (2006) DEOS_CHAMP-01C_70: a model of the Earth’s gravity field computed from accelerations of the CHAMP satellite, Journal of Geodesy, DOI 10.1007/s00190-005-0008-6 [pdf] [A21]

 

Han S.C., Shum C.K. Ditmar P., Visser P., van Beelen C., Schrama E.J.O. (2006) Aliasing Effect of High Frequency Mass Variations on GOCE Recovery of Earth’s Gravity Field, Journal of Geodynamics, Volume 41, Issues 1-3, January-April 2006, Pages 69-76, DOI 10.1016/j.jog.2005.08.005 [pdf] [A20]

2005

Deepak Vatvani, Ernst J.O. Schrama, Jan van Kester, (2005) Hindcast of tsunami flooding in aceh – Sumatra, The Fifth International Symposium on Ocean Wave Measurements and Analysis (WAVES2005) Madrid, Spain, 3th - 7th July 2005, [info] [P13]

 

Ambrosius B.A.C., R. Scharroo, C. Vigny, E. Schrama, W. Simons, (2005) The 26 December 2004 Sumatra Earthquake and Tsunami Seen by Satellite Altimeters and GPS, GI4DM conference, 21-23 March, Delft, The Netherlands. [V16]

 

Schrama E.J.O., (2005) Three algorithms to compute ocean tide loading and their numerical accuracy, Volume 78, Numbers 11-12,  May 2005, Pages: 707 – 714, DOI: 10.1007/s00190-005-0436-3. [pdf] [A19]

Kusche J, Schrama E.J.O., (2005) Mass redistribution from global GPS timeseries and GRACE gravity fields: inversion issues. JGR solid earth, Vol 110, B09409, doi:10.1029/2004JB003556. [pdf] [A18]

Kusche J., Schrama E.J.O.: Mass Redistribution from global GPS timeseries and GRACE gravity fields: inversion issues, in Jekeli, Bastos, Fernandes (Eds.) Gravity, Geoid and Space Missions, IAG Symposia Vol 129, Springer, 2005, pp 322-327 [P12]

Visser P. and Schrama E.J.O, (2004) Space-borne gravimetry: determination of the time variable gravity field, in Jekeli, Bastos, Fernandes (Eds.) Gravity, Geoid and Space Missions, IAG Symposia Vol 129, Springer, 2005, pp 6-11 [P11]

Schrama, E.J.O.
, Impact of limitations in geophysical background models on follow-on gravity missions, Earth, Moon, and Planets, 94: 143-163, 2005. [pdf] [A17]

2004

Schrama E.J.O. (2004) The GRACE mission, The journal of survey (Japanese edition), Vol 54. No. 3, 2004 [V15]

Scharroo R, Lillibridge J, Smith W, Schrama E, (2004) Cross-Calibration and Long-term Monitoring of the Microwave Radiometers of ERS, TOPEX GFO Jason and Envisat, Marine Geodesy, pp 279-298.[pdf] [A16]

Ditmar P., R. Klees, V. Kuznetsov, A. A. van Eck van der Sluijs, E. Schrama, and X. Liu, 2004. Gravity Field Analysis with the Acceleration Approach on the Basis of Data from the CHAMP Satellite Mission. In: Proceedings of the IAG International Symposium "Gravity, Geoid and Space Missions - GGSM2004", Porto, Portugal, Aug. 30 - Sep. 3 2004 (CD ROM).  [P10]

Gerritsen, H. Uittenbogaard, R.E., and E.J.O. Schrama, (2004) Modelling of monsoon driven flows in South-east Asian waters using satellite remote sensing techniques, Proc. 6th Int. Conf. on Hydroinformatics, Singapore, June 2004, - Liong, Phoon & Babovic, eds, Vol. 2, pp. 1285-1294. [P9]

Schrama E, (2004) Warm Water bevriest sneller dan Koud Water, twee bijdragen op pagina’s 35-36 en 91-92, Uitgeverij BZZTôH, Den Haag. [V14]

2003

Schrama E.J.O. (2003) The GRACE mission, GIM international, pages 7-9 [V14]

Schrama E.J.O. (2003) Error Characteristics Estimated from CHAMP, GRACE and GOCE Derived Geoids and from Satellite Altimetry Derived Mean Dynamic Topography, Space Science Reviews, Volume 108, Issue 1, pages 179-193. 2003. Also in Earth Gravity Field from Space - from Sensors to Earth Sciences. Kluwer Academic Publishers. [pdf] [A15]

Le Grand, Pascal; Schrama, Ernst J. O; Tournadre, Jean, (2003) An inverse estimate of the dynamic topography of the ocean, Geophys. Res. Lett. Vol. 30 No. 2, 10.1029/2002GL014917, 24 January. [pdf] [A14]

H. Gerritsen, E.J.O. Schrama, H.F.P. van den Boogaard (2003), Tidal Model Validation of the seas of south east asia using altimeter data and adjoint modeling, Proc. XXX IAHR Congress, Thessaloniki, 24-28 August, Vol.D, pp. 239-246. [P8]

2002

Lefèvre F, F.H. Lyard, C. Le Provost, E.J.O. Schrama, FES99: (2002) a global tide finite element solution assimilating tide gauge and altimetric information, Journal of Atmospheric and Oceanic Technology, pp. 1345--1356.[pdf] [A13]
 
Schrama E. (2002) Assimilation of along-track TOPEX/POSEIDON altimetry data, an approach based on the Helmholtz equation, WL|Hydraulics Z3341, July. [R20]

Schrama E. (2002) Availability of generic meteorological data, WL|Hydraulics Z3292, July.[R19]

Schrama E. (2002) Availability and quality of global tide models, WL|Hydraulics Z3341, July. [R18]

Naeije M, E. Doornbos, L. Mathers, R. Scharroo, E. Schrama, P. Visser, (2002) Radar Altimeter Database System Exploitation and Extension: RADSxx. BCRS report, p 99, Februari. [R17]

2001

Schrama E., External geophysical validation and calibration of an orbiting gravity gradiometer, proceedings of the International GOCE users workshop, 23-24 Apr. ESTEC Noordwijk, p 57-63, 2001.
[P7]

Koop R., J. Bouman, E. Schrama, P. Visser, Calibration and error assessment of GOCE data, IAG Budapest proceedings, Springer Verlag Vol 125, 2001. [P6]

Ditmar P., E. Schrama, R. Klees, Improved block-diagonal approximation of the normal matrix in the inversion of satellite gradiometry observations. Proceedings IAG symposium Budapest 2001. [P5]

H. Gerritsen, E. Schrama, R.E. Uittenbogaard, H.F.P van den Boogaard, T van der Kaaij, SAT2SEA, satellite altimetry on tides and transports applied to SEast Asian waters, WL|Delft hydraulics, BCRS rapport, NRSP-2 No. 01-14, 2001. [R16]

Schrama E., M. Naeije, R. Scharroo, P. Visser, B. Ambrosius, Ocean circulation and height systems and gravity field based on JASON satellite altimeter data, AVISO CLS Newsletter, p 119 - 121, No 8, October 2001. [V13]

Desai S.D., R.D. Ray, E.J.O. Schrama, Report of subgroup 6 on Satellite Altimetry of the IAG/ETC working group 6 'Solid Earth Tides in Space Geodetic Techniques', pp 10569-10585, Marrees Terrestres Bulletin d'Informations, 134, 15-12-2001, ROB, Belgium. [V12]

2000

Scharroo R. and E.J.O. Schrama and R.H.N. Haagmans, Combination of Space Techniques into one Integrated Processing Model, Towards an Integrated Global Geodetic Observing System (IGGOS), R. Rummel and H. Drewes and W. Bosch and H. Hornik (eds), Springer Verlag, Berlin, pp 13-18, 2000. [P4]

Naeije M.C., Ernst Schrama, Remko Scharroo, The Radar Altimeter Database System project RADS, IGARSS 2000 - Proceedings of IEEE 2000 National Geoscience and Remote Sensing Symposium, Honolulu, HI; UNITED STATES; 24-28 July 2000. pp. 487-490. 2000 [P3]

J.S. Groot, D van Halsema, P.J.L. Blommaart, G.J. Husti, G.A.M. Kruse, D. van Loon, J. Samson, E.J.O. Schrama, A.J. Striegel, J.M.P.C.M. Visser, Repeat pass interferometry with PHARUS. BCRS report, NRSP-2 00-23. December 2000. [R15]

R.J.P. van Bree, R. Gens, J.S. Groot, D. van Halsema, R.F. Hanssen, P. van den Hout, R. Klees, E.J. de Min, E.J.O. Schrama, S. Usai, Deformation measurements with SAR, BCRS publication USP-2 99-16, January 2000. [R14]

E.J.O. Schrama, M.C. Naeije, R. Scharroo, Radar Altimeter Database System (RADS): Towards a generic multi-satellite altimeter database system, BCRS publication, March 31, 2000. [R13]

M.C. Naeije, E.J.O. Schrama, R. Scharroo, User requirements document for RADS/NEONET. BCRS publicatie USP-2 00-06, April 2000. [R12]

R. Klees, R. Koop, E. Schrama, Understanding the Earth's Static and Temporal Gravity Field, Snellius Lustrum boek, TU Delft, Geodesie, Nov 2000. [V11]

E. Schrama, Ontwikkeling van satelliet altimetrie binnen het kader van NRSP, Remote sensing nieuwsbrief, No 95, 2000.
[V10]

1999

E. Schrama, M.C. Naeije, Altimetry is a valuable aid in measuring ocean currents: towards a better understanding of system Earth, Netherlands Remote Sensing Board (BCRS), No. 36, 1999. [V9]
 
R. Scharroo and M.C. Naeije and E.J.O. Schrama and J. Benveniste and P. Femenias and C. R. Francis and M. Roca, A recipe for upgrading ERS altimeter data, EOS, volume 80, year 1999. [A12]

1998

M. C. Naeije and R. H. N. Haagmans and E. J. O. Schrama and K.F. Wakker and R. Scharroo, Research plan and progress report of the TOPEX/POSEIDON extended mission, DEOS progress letter 98.2, Delft University Press, pages 111-115, ISBN: 90-407-1820-2, 1998. [R11]
 
R. Scharroo, E.J.O. Schrama and M.C. Naeije, Calibration and geophysical validation of altimetric satellites, Vening Meinesz Research School of Geodynamics, Annual reports 1996-1997, 256-257, 1998. [R10]

M.C. Naeije and R.H.N. Haagmans and E.J.O. Schrama and R. Scharroo and K.F. Wakker, Ocean circulation, height systems, and gravity field studies based on T/P altimetry, AVISO Altimetry Newsletter, Vol 6, pages "84-87", April 1998. [V8]

E. Schrama, Repeat pass interferometry met Pharus, E. Schrama, GPS Nieuwsbrief 13e jaargang, no.2 November, p 3-6, 1998 [V7]

1997

Schrama E.J.O., Satellite Altimetry, Ocean Dynamics and the Marine Geoid, Lecture notes in Earth Sciences, Vol 65, Geodetic Boundary Value Problems in View of the One Centimeter Geoid, Springer Verlag, 1997. [A11]

M. Naeije, R. Haagmans, E. Schrama, R. Scharroo, K. Wakker, Ocean circulation, height systems, and gravity field studies based upon TOPEX/Poseidon Altimetry, AVISO newsletter, 1997. [V6]

1996

Balmino G., E. Schrama, N. Sneeuw, Compatibility of first-order circular orbit perturbation theories; consequences for cross-track inclination functions, Journal of Geodesy, 1996. [pdf] [A10]

1995

Ray R.D., S. Bettadpur, R. Eanes, E. Schrama, Geometrical determination of the Love number h2 at four tidal frequencies, Geophysical Research Letters, 1995. [pdf] [A9]

Schrama E.J.O., Gravity research missions reviewed in light of the indirect ocean tide potential, Proceedings IUGG symposium Boulder, Rapp and Nerem (eds), 1995. [P2]

1994

Schrama E.J.O., R.D. Ray, A preliminary tidal analysis of Topex/Poseidon Altimetry, JGR Vol 99 No C12 pp 24799-24808, 1994. [pdf] [A8]

Nerem R.S., E. Schrama, C. Koblinsky, B. Beckley, A preliminary evaluation of ocean topography from the Topex/Poseidon Mission, JGR Vol 99, No C12, pp 24565-24583, 1994. [pdf] [A7]

 

Nerem, R. S., C. J. Koblinsky, B. D. Beckley, S. M. Klosko, N. K. Pavlis, R. G. Williamson, and E. J. Schrama, Results from an Analysis of the First Year and a Half of TOPEX/Poseidon Altimeter Data, Annales Geophysicae, Vol. 12, Suppl. 1, p. C181, 1994. [V5]

1993

Nerem, R. S., C. J. Koblinsky, B. D. Beckley, S. M. Klosko, N. K. Pavlis, L. Tsaoussi, R. G. Williamson, C. Boone, and E. J. O. Schrama, An Estimate of Global Ocean Topography and Circulation with Tidal Corrections, EOS Transactions, AGU, Vol. 74, No. 43, p. 187, October 26, 1993. [V4]

1992

Schrama E.J.O. , R. Rummel and N.J. Sneeuw, STEP geodesy co-experiment, Proceedings of the STEP workshop, Muerren, Zwitserland, 1992. [P1]

Schrama E.J.O., Some remarks of several definitions of geographically correlated orbit errors: consequences for satellite altimetry, Manuscripta Geodaetica, Vol 17 pp 282-294, 1992. [A6]

Schrama E.J.O., Frozen orbits and their application in satellite altimetry, In lecture notes on Summer School on satellite altimetry in geodesy and oceanography, Trieste Italy, Springer Verlag 1992. [A5]

E. Schrama, A systematic approach to linear perturbation techniques in satellite geodesy, internal report, 1992. [V3]

E. Schrama, Relativistic effects on motions of near-Earth satellites, internal report, 1992 [V2]

1991

Schrama E.J.O., Gravity Field Error Analysis: Applications of Global Positioning System Receivers and Gradiometers on Low Orbiting Platforms, Journal of Geophysical Research, Vol 96 No. B12, pp. 20,041 - 20,051, 1991. [pdf] [A4]

Wiejak W., E.J.O. Schrama and R. Rummel, Spectral representation of the satellite to satellite tracking observables, Adv. Space Res., Vol. 11, No. 6, pp (6)197--(6)224, 1991. [A3]

Rummel R. and E. Schrama, Two complementary systems on-board of Aristoteles: Gradio and GPS, ESA Journal, Vol 15, No 2, 1991. [A2]

Koop R., R. Rummel and E.J.O. Schrama, Alenia - ESA/NASA Cooperative Study: Commision and Omission Error, July 1991. [R9]   

1990

Schrama E.J.O., D. Oskam, en R. Rummel, Geodätische Aspekte bei der Verarbeitung von Satellitenaltimetriedaten, Zeitschrift fuer Vermessüngs, Heft 1, 115. Jahrgang, 1990. [A1]

Schrama E., Gravity Field Error Analysis: Applications of GPS Receivers and Gradiometers on Low Orbiting Platforms, NASA TM-100769, GSFC Greenbelt Md. 20771, 1990 [R8]

1989

Schrama E.J.O. The role of orbit errors in processing of satellite altimeter data, (1989) PhD Thesis, TU Delft, see also: Publication Series of the Netherlands Geodetic Commission, Report Number 33,  ISBN-13: 978 90 6132 239 9. ISBN-10: 90 6132 239 1 [PDF] [R7]


Schrama E.J.O., Aardgericht ruimteonderzoek, Satelliet radarhoogtemeting: meten aan de vorm van het zeeoppervlak, NGT, Geodesie, 2-89, 1989. [V1]

Koop R., E. Schrama, R. Rummel en M. van Gelderen, Aristoteles add-on study, internal report faculty of Geodesy, 1989.
[R6]


Rummel, R; Koop, R; Schrama, E.J.O., A discussion of observation model, error sources and signal size for spaceborne gravitational gradiometry, Ohio State Univ , Progress in the Determination of the Earth's Gravity Field p 172-175 (SEE N90-20513 13-46); UNITED STATES; 1989 [R5]

1986

Schrama E.J.O., A study of a satellite to satellite tracking configuration by application of linear perturbations theory, Report 86.3, Mathematical and Physical Geodesy, Department of Geodesy, TU Delft, also published in Quaterniones Geodesiae, 7, 2, 101-142, 1986. [R4]

Schrama E., Estimability of potential coefficients from orbit perturbations, vakgroep publication, Report 86.3, Mathematical and Physical Geodesy, Department of Geodesy, TU Delft, 1986. [R3]

1984

Schrama E., Orbit integration based upon interpolated gravitational gradients, master thesis report, TU Delft, Geodesy, 1984. [R2]


Wakker, K F; Ambrosius, B A C; Leenman, H; Noomen, R; Piersma, H J D; van der Ploeg, T; Schrama, E.J.O., Study of Navsat control segment characteristics. Part 2: Orbit computation aspects ((space station power supplies)) (Final Report), ESA contracter report, 1984 [R1]

 

Classification codes, description, (count):

 

[A] : Peer reviewed article in scientific journal  (32)

[B] : Contribution to book (1)

[P] : Peer reviewed contribution to proceedings (17)

[R] : Contract Reports, Technical memoranda, Thesis (22)

[V] : Non reviewed material, articles, notes, etc (16)

Last update 27-Jan-2011

Note: please contact me if you can't access an entry in this bibliography.