The JPL Open Repository (JOR) replaced the JPL Technical Report Server (TRS) in 2023. It is a repository for digital copies of technical publications authored by JPL employees. It includes journal articles (the Final Accepted Version), meeting papers, presentations, and other publications cleared for external distribution from 1992 to the present. It also include research datasets from 2022 on.

Years covered: 1992 to the present.
  • 1992-2021 records were originally on the JPL Technical Report Server (TRS) on Dspace system; those records were migrated to Dataverse in 2022.
  • Records with publication date 2022 or later are native to the Dataverse.
  • Data sets: 2022 to present
  • There are a few pre-1992 records. Those were added to the system on a case-by-case request basis.

  • Persistent IDs (PIDs):
  • 1992-2021 records have Handles
  • 2022 and later records have Digital Object Identifiers (DOIs).
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    41,871 to 41,880 of 41,963 Results
    Increase in Levels of Stratospheric Chlorine and Fluorine Loading Between 1985 and 1992
    Jan 1, 1993
    Gunson, M. R.; Abrams, M. C.; Lowes, L. L.; Mahieu, E.; Zander, R.; Rinsland, C. P.; Ko, M. K. W.; Sze, N. D.; Weisenstein, D. K., 1993, "Increase in Levels of Stratospheric Chlorine and Fluorine Loading Between 1985 and 1992", https://hdl.handle.net/2014/36590, UNKNOWN, JPL Open Repository
    Mixing ratios of 3.44 ppbv (parts per billion by volume) and 1.23 ppbv for HCI and HF above 50 km have been measured by the Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment on a March 1992 flight of the Space Shuttle.
    Large First Hyperpolarizabilities in Push-Pull Polyenes by Tuning Bond Length Alternation and Aromaticity
    Jan 1, 1993
    Marder, S. R.; Tiemann, B.G.; Friedli, A. C.; Cheng, L.-T.; Blanchard-Desce, M., 1993, "Large First Hyperpolarizabilities in Push-Pull Polyenes by Tuning Bond Length Alternation and Aromaticity", https://hdl.handle.net/2014/36595, UNKNOWN, JPL Open Repository
    Conjugated organic compounds with 3-phenyl-5-isoxazolone, or N, N'-diethylthiobarbituric acid acceptors have large first molecular hyperpolarizabilities in comparison to compounds with 4-nitrophenyl acceptors as measured by electric feld induced second harmonic generation, (EFISH...
    Increase in Atmospheric Column of CHCIF<sub>2</sub> (HCFC-22) over Southern California from 1985-1990
    Jan 1, 1993
    Irion, F. W.; Brown, M.; Toon, G. C.; Gunson, M. R., 1993, "Increase in Atmospheric Column of CHCIF2 (HCFC-22) over Southern California from 1985-1990", https://hdl.handle.net/2014/36596, UNKNOWN, JPL Open Repository
    Column densities of CHCIF2(HCFC-22) have been measured over Table Mountain Observatory, Wrightwood, CA (34.4N) using the Atmospheric Trace Molecule Spectroscopy(ATMOS)Fourier-transform infrared (FTIR) spectrometer.
    Investigation of Possible Electromagnetic Disturbances Caused by Spacecraft-Plasma Interactions at 4 R Subscript s Small Solar Probe
    Jan 1, 1993
    Okada, M.; Tsurutani, B.; Goldstein, B.; Brinca, A.; Matsumoto, H.; Kellogg, P., 1993, "Investigation of Possible Electromagnetic Disturbances Caused by Spacecraft-Plasma Interactions at 4 R Subscript s Small Solar Probe", https://hdl.handle.net/2014/36604, UNKNOWN, JPL Open Repository
    The proposed Small Solar Probe mission features a close approach to the sun with a perihelion of 4 R subscript s. Carbon molecules emitted from the spacecraft's heat shield will become ionized by electron impact and photoionization.
    KDD-93: Progress and Challenges in Knowledge Discovery in Databases
    Jan 1, 1993
    Piatesky-Shapiro, Gregory; Matheus, Christopher; Smyth, Padhraic; Uthurusamy, Ramasamy, 1993, "KDD-93: Progress and Challenges in Knowledge Discovery in Databases", https://hdl.handle.net/2014/36608, UNKNOWN, JPL Open Repository
    Interest in Knowledge Discovery in Databases (KDD) continues to increase, driven by the rapid growth in the number and size of large databases and the applicaitons-driven demand to make sense of them.
    IRAS Colors Within M31; Evidence for Deficiency of Very Small Grains?
    Jan 1, 1993
    Xu, C.; Helou, G., 1993, "IRAS Colors Within M31; Evidence for Deficiency of Very Small Grains?", https://hdl.handle.net/2014/36609, The Astrophysical Journal, JPL Open Repository
    Significant differences are found in the IRAS color-color diagrams of small regions within the disk of M31 compared to Galactic cirrus, most noticeably demonstrated by a trend of low surface brightness ratio.
    Retrieval of Surface Directional Reflectance and Hemispherical Albedo Using Multi-angle Measurements, I. Ground Level Observations
    Jan 1, 1993
    Martonchik, J. V., 1993, "Retrieval of Surface Directional Reflectance and Hemispherical Albedo Using Multi-angle Measurements, I. Ground Level Observations", https://hdl.handle.net/2014/36612, UNKNOWN, JPL Open Repository
    Knowledge of the directional reflectance properties of natural surfaces such as soils and vegetation canopies is essential for classification studies and canopy model inversions. Atmospheric correction schemes, using various levels of approximation, are described to retrieve surf...
    Navigating the Magellan Aerobrake
    Jan 1, 1993
    Giorgini, J.; Wong, S.; You, T-H., 1993, "Navigating the Magellan Aerobrake", https://hdl.handle.net/2014/36613, UNKNOWN, JPL Open Repository
    The Magellan spacecraft has been aerobraked into a 197 x 541 km near-circular orbit around Venus from which it is conducting a high-resolution gravity mapping mission. This was the first interplanetary aerobrake maneuver and involved flying the spacecraft through the upper reache...
    One Millimeter Horizontal Precision Over a 41 Km Baseline Using P-Codeless Data
    Jan 1, 1993
    Meehan, Thomas K.; Lindqwister, Ulf J., 1993, "One Millimeter Horizontal Precision Over a 41 Km Baseline Using P-Codeless Data", https://hdl.handle.net/2014/36615, UNKNOWN, JPL Open Repository
    High accuracy geodetic solutions at the few ppb level have become fairly standard with data from a global network of P-code Global Positioning System (GPS) receivers. Used as a measurement tool, it has numerous scientific applications including the monitoring of crustal motion, v...
    The Global Topography Mission
    Jan 1, 1993
    Farr, T.; Evans, D.; Zebker, H.; Harding, D.; Bufton, J.; Dixon, T.; Vetrella, S.; Gesch, D., 1993, "The Global Topography Mission", https://hdl.handle.net/2014/36627, UNKNOWN, JPL Open Repository
    An accurate description of the surface elevation of the Earth is of fundamental importance to many branches of Earth science. A number of working groups have considered the characteristics of the available digital topographic data base and found that there are significant deficie...
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