cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.9n743o
title: Roman Coronagraph HOWFSC Modeling: Case Study and Raw Contrast Performance Predictions

description: NASA’s Nancy Grace Roman Space Telescope (RST) mission includes a coronagraph instrument (CGI) to demonstrate space coronagraph with active wavefront sensing and control (WFSC) for future direct imaging of exoplanets mission needs. CGI is entering Integration & Testing phase and is scheduled to be delivered early next year for integration with Roman observatory. Key flight components, such as deformable mirror (DMs) and detectors, have been recently characterized and integrated into the CGI optical system. A series of system level coronagraph requirement verifications in vacuum chamber will take place later this year. Among them is the static raw contrast with a coronagraph stimulus source (CVS). This is the only time CGI will have opportunity for dark hole digging before in-orbit commission (IOC). CGI high order wavefront sensing and control (HOWFSC) modeling has played an important role in assisting many engineering decisions and risk assessment throughout the project phases, including decisions involving these key components when unexpected risks emerged, such as dead actuators, coupled actuator gain, large DM defocus and astigmatism, DM creep, detector smear at low exposure time, detector nonlinearity at high gain, etc. Here we present selected modeling studies involving some of these issues and risks and update our current-best-estimate on static raw contrast for the upcoming performance verification. Contrast performance for IOC phase WFSC with a typical reference star and its brightness is also given. All evaluations are performed with full features of HOWFSC modeling practice (including probing and sensing with flight detector properties and usages).
DOI: 10.48577/jpl.ppo38c
title: Kinematic Invariant Parametric Snake Robot Gait Design for Enceladus Exploration

description: Snake-inspired robots demonstrate versatility through challenging terrains. However, their highdimensionalcontinuous action spaces make analytical gait design difficult. Early pioneers showedgait parameterization over low-dimensional spatially and temporally varying sine waves can serveas basis functions in gait shape space. Optimizing such gaits is a non-convex problem as parameterspace is fraught with local optima exacerbated by constraints such as actuator limits. ReinforcementLearning (RL) has emerged as a promising alternative for gait search. However, end-to-endRL approaches lack safety guarantees and don’t yield an intuitive representation of the learnedgait. We propose a hybrid method that first identifies sidewinding gaits for novel bend-twist kinematicchains using RL, before distilling the gait into an equivalent open-loop parametric representation.Our method avoids the twist-windup problem (a key challenge we identified with priorwork) while combining task-space learning with interpretable policy approximation. Simulationand hardware experiments demonstrate our proposed method generates parametric gaits for a simpleline-following task where an existing optimization-based curve-fitting method cannot.Keywords: reinforcement learning, snake robotics, gait design, parametric curve fitting.
DOI: 10.1594/pangaea.759185
title: Physical oceanography during Håkon Mosby cruise HM99/3
DOI: 10.1594/pangaea.728669
title: (Table 5) Paleogene calcareous nannofossil stratigraphy of ODP Site 120-749

description: Species abundance: A = abundant (&gt;50%), C = common (10-50%), F = few (&lt;10%), R = rare (one to few specimens), - = absent
DOI: 10.1594/pangaea.781228
title: (Table T3) Growth characteristics of prokaryotes in enrichment cultures of rock samples from ODP Leg 187 sites

description: Growth was observed by phase-contrast microscopy and is shown as "+" (growth) or "-" (no growth). A blank space means that no enrichment culture was started for this particular sample and medium.
DOI: 10.1594/pangaea.744435
title: Physical oceanography during Tridens cruise Tridens98/1 to the North Sea
DOI: 10.1594/pangaea.801780
title: (Table 1) Calcareous nannofossil biohorizons at ODP Leg 135 sites
DOI: 10.1594/pangaea.793325
title: (Table 13) Diatom biostratigraphy of ODP Site 167-1022 sediments

description: DEPTH, sediment is given in mbsf. Abundance estimates as follows: A = abundant, C = common, F = few, R = rare, T = trace, and B = barren, - = not found.
DOI: 10.1594/pangaea.726349
title: (Table 5) Chemical composition of sulfide deposits from hydrothermal edifices of the Lucky Strike hydrothermal field
DOI: 10.1594/pangaea.760924
title: (Table 6) Contents of Ba and P in the surface layer of silts from the area of the Spitsbergen (Svalbard) Archipelago
DOI: 10.1594/pangaea.763629
title: (Table 1a) Chemical composition of bottom waters from the White Sea, June 1978
DOI: 10.1594/pangaea.733644
title: (Table 16) Chemical composition of orthopyroxenes from peridotites of the Cape Verde fault

description: Samples marked by * have been analyzed by G.V. Karpova in the Geological Institute, USSR Acad. Sci., other samples - in the Institute of Earth Physics, USSR Acad. Sci.
DOI: 10.1594/pangaea.808264
title: Bacteria and cyanobacteria abundance measured on water bottle samples during HUDSON cruise HUD92/37

description: Bacterial countsSamples for enumeration of bacterial abundance were drawn from Niskin bottles and immediately preserved in 20 mL glass scintillation vials with 0.2 µm filtered (Millex-GS, Millipore Corp.) formalin (2% final concentration). Preserved samples were stored dark in a refrigerator. Each sample was poured over triplicate polycarbonate membranes (0.2 µm black Nuclepore) underlain by pre-wetted backing filters (Sartorius #11306) which aid in distributing cells in an even manner on the Nuclepore surface. Cells were stained for 10 minutes with DAPI at a final concentration of 2 µg/ml and then drawn through the filters at a vacuum pressure of about 150 mm Hg. The filters were examined by epifluorescence microscopy (Leitz Orthoplan) under ultraviolet excitation from a mercury arc lamp (HBO 100W).Cyanobacterial countsSamples for enumeration of cyanobacterial abundance (20-100 ml) were freshly filtered in triplicate onto 0.2 µm black Nuclepore membranes which were underlain by backing filters. The membranes were stored refrigerated after having been covered in a drop of immersion oil. Cyanobacteria were enumerated by epifluorescence microscopy under green excitation (Leitz block N2).
DOI: 10.1594/pangaea.760163
title: Concentrations of particulate organic carbon in the Kara Sea and in the Obskaya Guba (Ob River estuary) in September 1993

description: Contents and distribution of particulate lipids were studied by thin-layer chromatography technique with flame ionization detection (Iatroscan TH-10) along the transect from the Ob River towards the Kara Sea. Lipid contents range from 18.4 to 266 µg/l with, average 84.97 µg/l, which comprises from 4.06 to 58.32 % of total particulate organic matter. Principal constituents of particulate lipids are hydrocarbons (32.14 % of total lipids on the average), polar compounds (29.85 %), wax and sterol esters (13.04 %), and mono- and diglycerides (12.52 %). Secondary components are presented by fatty acid esters (5.14 %), free fatty acids (4.56 %), triglycerides (2.32 %), and sterols (1.04 %). Specific composition of particulate lipids along the Ob River - Kara Sea transect is formed under strong impact of river run-off. Particulate lipid composition reflects differences between processes of organic matter transformation in estuarine and marine parts of the transect, as well as peculiarities of species composition of Arctic living organisms.
description: Supplement to: Alexandrova, Olga A; Shevchenko, Vladimir P (1997): Particulate lipid composition in the waters of the Ob River estuary and in the Kara Sea. Translated from Okeanologiya, 1997, 37(5), 715-722, Oceanology, 37(5), 643-650
DOI: 10.48577/jpl.4quzz0
title: Towards Space Edge Computing and Onboard AI for Real-Time Teleoperations

description: This paper presents a summary of findings related to some current developments and emerging applications of the space edge-computing and onboard artificial intelligence (AI) as discussed at a workshop by the IEEE Future Directions Low- Earth Orbit Satellites and Systems (LEO SatS) Initiative. It focuses on the state-of-the-art AI techniques across various layers of the space communication link, benchmarking of deep-learning models and flight software applications evaluated on embedded processors on board the ISS, a mission for in-orbit experiments of AI and edge computing, and AI safety and security with applications in the context of Dataspaces and satellites for Earth observations.
DOI: 10.1594/pangaea.733639
title: (Table 11) Composition of clino- and orthopyroxenes

description: Analyses have been carried out in the Borok Geophysical Observatory (Institute of Earth Physics, USSR Acad. Sci.).
DOI: 10.1594/pangaea.815053
title: (Table 2) Clay minerals at DSDP Site 71-513
DOI: 10.1594/pangaea.808271
title: Bacteria abundance measured on water bottle samples during HUDSON cruise HUD98/23

description: Samples for enumeration of bacterial abundance were drawn from Niskin bottles and immediately preserved in 20 mL glass scintillation vials with 0.2 µm filtered (Millex-GS, Millipore Corp.) formalin (2% final concentration). Preserved samples were stored dark in a refrigerator. Each sample was poured over triplicate polycarbonate membranes (0.2 µm black Nuclepore) underlain by pre-wetted backing filters (Sartorius #11306) which aid in distributing cells in an even manner on the Nuclepore surface. Cells were stained for 10 minutes with DAPI at a final concentration of 2 µg/ml and then drawn through the filters at a vacuum pressure of about 150 mm Hg. The filters were examined by epifluorescence microscopy (Leitz Orthoplan) under ultraviolet excitation from a mercury arc lamp (HBO 100W).
DOI: 10.1594/pangaea.823560
title: (Table 6) Test of pore connectiveness by comparison of measured and predicted wet-bulk densities for basalts from DSDP Leg 54 Holes
DOI: 10.1594/pangaea.744203
title: Physical oceanography during Dana II cruise Dana92/1 to the North Sea
DOI: 10.1594/pangaea.746200
title: (Table 28) Chemical composition of sulfide deposits from the Eiffel Tower hydrothermal mound, Lucky Strike hydrothermal field
DOI: 10.1594/pangaea.690434
title: (Table 3) Projected ages of radiolarian events of DSDP Site 63-470 in the eastern North Pacific

description: Ages were obtained from age/depth plots based on diatom, foraminifer, calcareous nannofossil and magnetostratigraphic events
DOI: 10.1594/pangaea.738420
title: (Table 23) Chemical composition of rocks from the ferrodiorite-granodiorite series of the Peyve Seamount
DOI: 10.1594/pangaea.744424
title: Physical oceanography during Tridens cruise Tridens87 to the North Sea
DOI: 10.1594/pangaea.744426
title: Physical oceanography during Tridens cruise Tridens89/3 to the North Sea
DOI: 10.1594/pangaea.684351
title: (Table 1) Age determination of planktonic foraminiferal datums in DSDP Site 94-610 from the North Atlantic

description: Age calculated from age/depth curves based on paleomagnetic data (Clement and Robinson, 1987)
DOI: 10.1594/pangaea.790863
title: (Table 1) Grain-size composition of sediments obtained during R/V Professor Logachev cruise PL28, Krasnov field
DOI: 10.1594/pangaea.744050
title: (Appendix 1) Age, Ge/Si ratio, aluminium and opal contents in ODP Sites 175-1081 and 175-1084

description: As a result of both culture and sediment core studies, the ratio of germanium (Ge) to silicon (Si) in diatom shells has been proposed as a proxy for monitoring whole-ocean changes in seawater Ge/Si, a ratio affected by changes in continental weathering. However, because of the difficulties of extracting and cleaning diatom frustules from deep-sea sediments, only samples from highly pure diatom oozes in the Antarctic region have been previously analyzed. Here we present data on diatom Ge/Si ratios, (Ge/Si)opal, for the time interval between 3.1 and 1.9 Ma from a mid-latitude, coastal upwelling area where significant terrigenous sediment input complicated the sample processing and analyses. In general, our (Ge/Si)opal values show the same decreasing trend after 2.6 Ma than previously measured in Antarctic sediments (Shemesh et al., 1989. Paleoceanography 4, 221-231), but with a noisier background that may reflect the local imprint of proximal continental input superimposed upon global changes in the ocean reservoir. The time of initiation of large-scale North Hemisphere glaciation at ~2.6 Ma is characterized by a declining pattern of diatom Ge/Si ratios, which could have resulted from a global increase in the input of riverine Si due to enhanced silica weathering and/or equatorward (northward) intrusions of subantarctic waters enriched in silica. High (Ge/Si)opal ratios are associated with high opal contents from the same sediment samples and with warm climate as indicated by depleted benthic foraminiferal d18O values from the North and Equatorial Atlantic. Cold periods signified by enriched benthic d18O values, on the contrary, are associated with lower (Ge/Si)opal ratios. We interpret diatom Ge/Si values to reflect the prevailing weathering state on the continents, with greater chemical weathering during warm and wet periods of the Pliocene and less during cooler and drier intervals.
DOI: 10.1594/pangaea.745495
title: (Table 4) Distribution of silicoflagellates, actiniscidians, and ebridians in selected samples from ODP Site 112-688

description: R = rare, F = few, C = common, A = abundant, * = displaced, - = not observed. Sample 112-688E-27R-CC barren.
DOI: 10.1594/pangaea.815301
title: (Table 3) Distribution of calcareous nannofossil species at DSDP Holes 25-239, 25-240, and 25-241

description: Abundance - V = very abundant, (more than 10 specimens/field of view); A = abundant, (1 to 10 specimens/field of view); C = common, (1 specimen/2-10 fields of view); F = few, (1 specimen/11-100 fields of view); R = rare, (1 specimen/101-1000 fields of view); - = none found. Preservation - P = poor, M = moderate, G = good. 25-239-14-1,38-40 to 25-239-16-1,112-114; 25-239-17-2,124-126; 25-239-18-1,101-103; 25-239-18-3,130-132; 25-239-19-2,77-79 and 25-241-19-1,62-64 to 25-241-21-5,95-97 were barren. 25-239-17-5,52-54 and 25-239-19-1,55-57 include occasional placolith rim.
DOI: 10.1594/pangaea.726346
title: (Table 3) Chemical composition of sulfide deposits from the Sintra edifice of the Lucky Strike hydrothermal field
DOI: 10.1594/pangaea.891439
title: Ultra-violet measurements from station Payerne (2012-04)

description: UV reflect values might contain errors.
DOI: 10.1594/pangaea.770728
title: (Table 3) Representative pyroxene composition of ash layers in ODP Leg 125 holes

description: Cation proportions on the basis of six oxygen atoms, and end-member enstatite, ferrosilite and wollastonite proportions.
DOI: 10.1594/pangaea.653333
title: Hydrochemistry measured on water bottle samples during ARGOS cruise Argos91/1
DOI: 10.1594/pangaea.759182
title: Physical oceanography during Håkon Mosby cruise HM98/4
DOI: 10.1594/pangaea.781232
title: (Table T4) Presence of metabolic products in enrichment cultures of rock samples from ODP Leg 187 sites

description: All analyses of metabolic products were performed after ~1 month of incubation. + = presence, - = absence of metabolic product.
DOI: 10.1594/pangaea.818107
title: (Table 7) Geochemistry of sulfides at DSDP Site 65-482
DOI: 10.1594/pangaea.880310
title: (Table 1, page 381) Chemical composition of metalliferous sediments from DOMES Site C, Pacific Ocean

description: Quaternary sediments cored in the northeast Pacific nodule area (DOMES site C, 14°N, 126°W) contain a significant amount of hydrothermal metalliferous mud. Water content, color, mineralogy, and chemical composition are analogous to metalliferous sediments of the subequatorial East Pacific Rise. Correction for contribution of pelagic clay indicates the metalliferous fraction to be about 40% of the sediment. SiO2 and Mg are major components in the corrected composition, as they are for other metalliferous sediments similarly corrected from a variety of East Pacific Rise and DSDP metalliferous sediments. A correlation between Mg and SiO2 for these corrected sediments could indicate a hydrothermal origin for a significant portion of the SiO2. Results from DSDP in the nodule area suggest that metalliferous globules are a ubiquitous minor component of the Clipperton Oceanic Formation, which underlies much of the Pacific ferromanganese nodule belt. This indicates that deposition of hydrothermal precipitates is not confined to spreading centers.
description: Samples have been oven dried at 110°C.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis..) not present in the NOAA-MMS database.
description: Supplement to: Bischoff, James L; Rosenbauer, Robert J (1977): Recent metalliferous sediment in the North Pacific manganese nodule area. Earth and Planetary Science Letters, 33(3), 379-388
DOI: 10.1594/pangaea.805345
title: (Table 7) Chemical composition of illite/smectite mixed layers from ODP Holes 161-976B and 161-977A

description: Sediment depth is given in mbsf. Number of cations is calculated on the basis of 11 oxygen atoms
DOI: 10.1594/pangaea.853732
title: Annotated record of the detailed examination of Mn deposits from CAPRICORN Expedition stations

description: The cores described in this report were taken on the CAPRICORN Expedition in September 1952 to February 1953 by the Scripps Institution of Oceanography from the R/V Spencer F. Baird and the R/V Horizon. A total of 147 cores and dredges were recovered and are available at Scripps for sampling and study.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
DOI: 10.1594/pangaea.805782
title: (Table 1) Rare earth element and trace element abundances at DSDP Leg 82 Holes

description: Sediment depth is given in mbsf. Values used to normalize abundances to chondrites: La=0.33; Ce=0.88; Nd=0.6; Sm=0.181; Eu=0.069; Yb=0.2; Lu=0.034.
DOI: 10.1594/pangaea.805902
title: (Table 3) Statistic analysis of geochemical variables from DSDP/ODP Hole 504B
DOI: 10.1594/pangaea.783466
title: (Table 3) Major element bulk composition of microtektites from the microtektite/micrometeorite trapps from the Victoria Land Transantarctic Mountains

description: Cr2O3, MnO and NiO were always below detection limits (Cr2O3 = 0.19 wt%, MnO = 0.12 wt%, NiO = 0.19 wt%)
DOI: 10.1594/pangaea.818545
title: (Table 8) Elemental atomic ratios to Al and calculated protodolomite composition in protodolomite samples at DSDP Leg 64 Holes

description: Sediment depth is given in mbsf. Blank spaces indicate that no data were obtained. The composition of the protodolomites was calculated as follows: The Ca/Al, Mg/Al, and Fe/Al ratios were corrected for background values calculated for the nondolomite sediments (Ca/Al = 0.4 upper 150 m, Ca/Al = 0.1 below 150 m; Mg/Al = 0.3 upper 150 m, Mg/Al = 0.2 below 150 m; Fe/Al = 0.2 below 150 m). The percentage of CaCO3, MgCO3, and FeCO3 was then calculated from the corrected ratios. It was assumed that all other constituents of the protodolomites were &lt;1%. The estimated errors were ± 3% of the CaCO3 value, ±4% of the MgCO3 value, and ± 10% of the FeCO3 value. These estimated errors were obtained by taking a low and a high correction for Ca/Al, Mg/Al, and Fe/Al and calculating the spread for the corrected values of several samples containing high Al.
DOI: 10.1594/pangaea.884562
title: Ichthyoplankton composition from SUDEPE cruise 4, Southern Brazilian Shelf, in 1971

description: The cruises of this series were carried out by the "Superintendência de Desenvolvimento da Pesca" (SUDEPE), through the "Grupo Especial para Execução de Pesquisas Marítimas e Lacustres" (GEEPMAL) from the state of Rio Grande do Sul, with support from the "Programa de Desenvolvimento Pesqueiro do Brasil" (PDP). Ichthyoplankton was obtained during 14 exploratory demersal fishing cruises, carried out in 1970, 1971 and 1976 by the Mestre Jerônimo and Cruz Del Sur Research Ships. Because they represent a continuity of sampling during the same time of year, cruises 1, 2 and 3 of 1970 were aggregated in a single cruise (SUDEPE_1, Winter), cruises 7 and 8 of 1970 (SUDEPE_2, Spring), cruises 1 and 2 of 1971 (SUDEPE_3, Winter), cruises 3 and 4 of 1971 (SUDEPE_4, Spring) , and cruises 5 and 6 of 1976 (SUDEPE_8, Winter).In the cruises conducted in 1970 and 1971 two sampling strategies were used. Horizontal trawls of 5 min duration, at 4-5 m depth and at a speed of 3 knots, using Gulf net of 0.18 m of mouth diameter and 500 µm mesh. Vertical trawls with 0.70 m diameter Nansen net and 500 µm mesh, from 50 m depth to the surface, or from the bottom at stations with depths of less than 50 m (Weiss et al. , 1976; Weiss & Souza, 1977). In the cruises made in 1976 the horizontal trawls were obtained at 8 m depth, and only in the first (SUDEPE_5, Summer) were horizontal and vertical trawls conducted. The samples of the cruises 5 and 6 of 1976 (SUDEPE_8) were obtained by the Cruz Del Sur Research Ship through vertical trawls with a conical net of 0.50 m in diameter and 200 µm mesh, from 50 m depth to the surface, or from the bottom at stations with depths less than 50 m (Weiss & Souza, 1977). The volume of filtered water in each trawl was calculated from the measurements obtained from the flowmeter coupled in the nets, and used to standardize the abundance of eggs and fish larvae per 100 m3 of filtered water.
DOI: 10.1594/pangaea.772236
title: Major and trace element data for the Mehmetalan (ME), Mollatopuz (MO), and Alabayir (C) diabase dykes in turkey

description: The diabases cut across the ophiolites as parallel and variably thick dyke-swarms. Geochemistry of the diabases reveals three distinct groups, including a) supra-subduction zone (SSZ) type, which is characterized by marked Nb-anomaly and normal mid-ocean ridge basalt (N-MORB) like HFSE distribution, b) enriched MORB (E-MORB) type, showing some degree of enrichment relative to N-MORB, c) oceanic-island basalt (OIB) type with characteristic hump-backed trace element patterns, coupled with fractionated REE distribution.
description: no reference given; data submission at http://issues.pangaea.de/browse/PDI-850
DOI: 10.1594/pangaea.774821
title: (Table 14) Composition of suspended matter from waters of the Baltic Sea
DOI: 10.1594/pangaea.846298
title: Urban forest health survey on Rožnik in Ljubljana in 2013 by ICP Forests
DOI: 10.1594/pangaea.733188
title: Physical oceanography during Wecoma cruise HOT-46 on section PRS2
DOI: 10.1594/pangaea.777991
title: (Table T6b) Chronological list of radiolarian events from ODP Site 199-1218 in combination with sediment core EW9709-07PC

description: Sediment depth is given in mcd.