cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.856844
title: Greenland and Antarctic ice sheet topography, cavity geometry, and global bathymetry (RTopo-2), links to NetCDF files

description: The ocean plays an important role in modulating the mass balance of the polar ice sheets by interacting with the ice shelves in Antarctica and with the marine-terminating outlet glaciers in Greenland. Given that the flux of warm water onto the continental shelf and into the sub-ice cavities is steered by complex bathymetry, a detailed topography data set is an essential ingredient for models that address ice–ocean interaction. We followed the spirit of the global RTopo-1 data set and compiled consistent maps of global ocean bathymetry, upper and lower ice surface topographies, and global surface height on a spherical grid with now 30 arcsec grid spacing. For this new data set, called RTopo-2, we used the General Bathymetric Chart of the Oceans (GEBCO, 2014) as the backbone and added the International Bathymetric Chart of the Arctic Ocean version 3 (IBCAOv3) and the International Bathymetric Chart of the Southern Ocean (IBCSO) version 1. While RTopo-1 primarily aimed at a good and consistent representation of the Antarctic ice sheet, ice shelves, and sub-ice cavities, RTopo-2 now also contains ice topographies of the Greenland ice sheet and outlet glaciers. In particular, we aimed at a good representation of the fjord and shelf bathymetry surrounding the Greenland continent. We modified data from earlier gridded products in the areas of Petermann Glacier, Hagen Bræ, and Sermilik Fjord, assuming that sub-ice and fjord bathymetries roughly follow plausible Last Glacial Maximum ice flow patterns. For the continental shelf off Northeast Greenland and the floating ice tongue of Nioghalvfjerdsfjorden Glacier at about 79° N, we incorporated a high-resolution digital bathymetry model considering original multibeam survey data for the region. Radar data for surface topographies of the floating ice tongues of Nioghalvfjerdsfjorden Glacier and Zachariæ Isstrøm have been obtained from the data centres of Technical University of Denmark (DTU), Operation Icebridge (NASA/NSF), and Alfred Wegener Institute (AWI). For the Antarctic ice sheet/ice shelves, RTopo-2 largely relies on the Bedmap-2 product but applies corrections for the geometry of Getz, Abbot, and Fimbul ice shelf cavities.
description: To enable communication with RTopo-2 users, the authors would appreciate a notification when using the data sets or errors are found.
description: Supplement to: Schaffer, Janin; Timmermann, Ralph; Arndt, Jan Erik; Kristensen, Steen Savstrup; Mayer, Christoph; Morlighem, Mathieu; Steinhage, Daniel (2016): A global, high-resolution data set of ice sheet topography, cavity geometry, and ocean bathymetry. Earth System Science Data, 8(2), 543-557
DOI: 10.5067/terra/misr/mi1b2e_l1.003
title: MISR Level 1B2 Ellipsoid Data HDF-EOS File - Version 3
DOI: 10.14768/mistrals-hymex.1388
title: SAFRAN analysis over Spain

description: SAFRAN is a mesoscale analysis of near surface meteorological variables. This dataset contains the analysis performed within the FP7 eartH2Observe project. The first guess used is ERA-Interim. The station data comes from AEMET. Thus, there is no station data in Portugal. WARNING: The arrays cover Portugal, but as Portuguese station data was not available, Portugal should be masked out.
DOI: 10.26165/juelich-data/fxsayy
title: Experimental data for: Uptake of iodine by cement hydration phases: Implications for radioactive waste disposal

description: This data set contains the following experimental data: specific surface area (SSA) of cement hydration phases and HCP used in the sorption experiments, pH of aqueous solutions equilibrated with various cement hydration phases and crushed HCP prepared from CEM I used in sorption experiments and distribution ratios Rd for the uptake of I- and IO3- by cement hydration phases in different solutions.
DOI: 10.5065/d6fq9tn2
title: In situ spectral reflectance and depth of a supraglacial lake in Greenland
DOI: 10.5067/aura/mls/data2004
title: MLS/Aura L2 Chlorine Monoxide (ClO) Mixing Ratio - Version 4
DOI: 10.5067/terra/misr/mi1b2t_l1.003
title: MISR Level 1B2 Terrain Data HDF-EOS File - Version 3
DOI: 10.5067/terra/misr/mib2geop_l1.002
title: MISR Geometric Parameters HDF-EOS File - Version 2
DOI: 10.5067/terra/misr/mil2asae_l2.002
title: MISR Level 2 Aerosol Parameters HDF-EOS File - Version 2
DOI: 10.5258/soton/wp00645
title: Global 100m Population

description: RF-based gridded population distribution datasets produced in the framework of the Global Project - Funded by The Bill and Melinda Gates Foundation (OPP1134076)
DOI: 10.5285/18be23f8-d252-482d-8af9-5d6a2d40990c
title: CRU TS3.22: Climatic Research Unit (CRU) Time-Series (TS) Version 3.22 of High Resolution Gridded Data of Month-by-month Variation in Climate (1901-2013)

description: Climatic Research Unit (CRU) TS (time-series) datasets are month-by-month variations in climate over the last century or so. These are calculated on high-resolution (0.5x0.5 degree) grids, which are based on an archive of monthly average daily maximum and minimum temperatures provided by more than 4000 weather stations distributed around the world. They allow variations in climate to be studied. CRU TS 3.22 variables are cloud cover, diurnal temperature range, frost day frequency, PET, precipitation, daily mean temperature, monthly average daily maximum and minimum temperature, vapour pressure and wet day frequency for the period Jan. 1901 - Dec. 2013. In addition to updating the dataset with 2013 data, the v3.22 release corrects an error in the v3.21 dataset. This is summarised in the document, 'CRU_Advisory_v3.2x_NE_Africa.txt', and affects PRE and WET variables only. There are several known issues with the current dataset which cannot be resolved in the timeframe of this release; they will be addressed in the future.
DOI: 10.5439/1052554
title: Sacramento Municipal Utility District (SMUD): Rotating Shadowband Radiometer (RSR); Anatolia - Rancho Cordova, California (Data)

description: A partnership with industry and U.S. Department of Energy's National Renewable Energy Laboratory (NREL) to collect solar data to support future solar power generation in the United States.  The measurement station monitors global horizontal, direct normal, and diffuse horizontal irradiance to define the amount of solar energy that hits this particular location. The solar measurement instrumentation is also accompanied by meteorological monitoring equipment to provide scientists with a complete picture of the solar power possibilities.
DOI: 10.5676/dwd_emir/v001
title: Total column water vapour from the Microwave Radiometer (MWR) instruments onboard ERS-1, ERS-2, and ENVISAT

description: The Microwave Radiometer (MWR) flown on-board Envisat, ERS-1, and ERS-2 has provided a time series of global microwave observations over a period of nearly 21 years between 1991 and 2012. A successor instrument with very similar characteristics will be carried on-board the Sentinel-3 suite of satellites, which will extend the availability of the MWR observations from early 2016 well into the mid-2020s and possibly beyond. 
Unlike methods relying on infrared or visible/near-infrared techniques, microwave observations allow for accurate retrievals of total column water vapour (TCWV) and liquid water path (LWP) also under cloudy conditions. In order to improve the quality and usefulness of MWR observations, the European Space Agency (ESA) has commissioned the project "ERS/Envisat MWR Recalibration and Water Vapour Thematic Data Record Generation" (EMiR) as part of their Long-Term Data Preservation (LTDP) activities. In this context, fully re- and inter-calibrated data records of MWR brightness temperatures and derived TCWV have been generated. In support of ocean altimetry, the wet tropospheric delay has been additionally calculated from the EMiR TCWV and ERA-Interim atmospheric fields.
The EMiR dataset is provided for individual orbits at MWR's native spatial resolution of typically 20 km (Level-2) as well in a gridded form for monthly mean values in spatial resolutions of 2° × 2° and 3° × 3° (Level 3). The EMiR dataset is available for the global ice-free ocean. 

The following issues are known:
- ERS-1 data between prior to 1992/10/23 have not been used for the generation of the EMiR dataset since the altimeter time tag is not available for this period. 
- There are a number of observation gaps in the EMiR dataset, the longest one between 1993/12/21 and 1994/04/09 (ERS-1). 
- Closer than ca. 50 km to the coastline, the product quality is reduced due to land contamination. 
- Product quality is also reduced in the presence of heavy precipitation.

The data can be accessed as follows:
- Level 2, swath-based data:  ftp://ftp-cmsaf.dwd.de/MWR/EMIR_MWR_full_newset_v1.0/Level2/
- Level 3, monthly mean values at 2° × 2° and 3° × 3°:  ftp://ftp-cmsaf.dwd.de/MWR/EMIR_MWR_full_newset_v1.0/Level3/ 

The EMiR dataset was assembled as a service to the atmospheric and oceanic research community. No warranties to the correctness and accuracy of the information therein can be made. 

The EMiR dataset should be cited as follows: Bennartz, R., M. Stengel, M. Schröder, R. Hollmann, B. Picard, and F. Fell (2016): Total column water vapour from the Microwave Radiometer (MWR) instruments onboard ERS-1, ERS-2, and ENVISAT, doi:10.5676/DWD_EMIR/V001.
DOI: 10.6073/pasta/ea06e6d53df8b1cdf7c1d50d025b77fd
title: MCR LTER: Coral Reef: Benthic Photosynthetically Active Radiation (PAR), ongoing since 2009

description: These data contain a time-series from sequential deployments of an ALW-CMP PAR sensor recording quanta of photosynthetically active radiation underwater between wavelengths 400 nm to 700 nm every two seconds. The sensor window is wiped free of algae periodically to prevent fouling. Deployments are three to six months in length. The sensor was mounted at 17 m depth on the fore reef, and at 2 m depth on the Backreef. PAR irradiance is measured as quanta in micromoles of photons per square meter per second.
DOI: 10.5067/terra+aqua/ceres/syn1deg3hour_l3.003a
title: CERES Level 3 SYN1deg-3Hour Terra+Aqua HDF file - Edition 3A
DOI: 10.15468/dl.uetx5u
title: Occurrence Download

description: A dataset containing 438 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Coscinasterias acutispina (Stimpson, 1862)"
 ]
}

 The dataset includes 438 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021505-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yf667f
title: Occurrence Download

description: A dataset containing 25332 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Marthasterias glacialis (Linnaeus, 1758)"
 ]
}

 The dataset includes 25332 records from 157 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021506-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14738481
title: CFCl3 wB97XD/aug-cc-pvdx propyl ethanoate as solvent

description: Gaussian 16 (C01) calculation
DOI: 10.15468/dl.rayxjv
title: Occurrence Download

description: A dataset containing 231298 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cydalima perspectalis (Walker, 1859)"
 ]
}

 The dataset includes 231298 records from 548 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021503-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.pzraxf
title: Occurrence Download

description: A dataset containing 454654 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is North America",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Month is February",
 "OccurrenceStatus is Present",
 "TaxonKey is Picidae",
 "Year 2020-2020"
 ]
}

 The dataset includes 454654 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021504-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.t3fhpp
title: Occurrence Download

description: A dataset containing 72 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Greece",
 "DatasetKey is one of (Lund University Biological Museum - Botanical collection (LD), Natural History Museum (London) Collection Specimens, Steiermärkisches Landesmuseum Joanneum - Herbarium GJO, Natural History Museum, Vienna - Herbarium W, Colección de plantas vasculares del herbario de la Universitat de València (VAL), CeDoc de Biodiversitat Vegetal: BCN-Cormophyta, Naturalis Biodiversity Center (NL) - Botany)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Linum arboreum L."
 ]
}

 The dataset includes 72 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021507-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cdudbn
title: Occurrence Download

description: A dataset listing the 1151 species recorded in GBIF matching the query:
{
 "and" : [
 "Continent is Asia",
 "Country is China",
 "DatasetKey is EOD – eBird Observation Dataset",
 "GadmGid is CHN",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Month is one of (May, June, January, February, March, April, July, August, September, October, November, December)",
 "Year 2017-2017"
 ]
}

 The dataset's 1151 records were derived from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021502-250127130748423/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.34943/73b4aed0-058a-4849-9c43-c854b4056b34
title: Hercules Navigation System Deployed 2021-08-06

description: The Hercules ROV Navigation 01 was deployed on 2021-08-06 on Hercules. This Remotely Operated Vehicle is operated by Ocean Exploration Trust. This device is a Navigation System. Navigational instruments are used to measure and record positional information of ships, buoys, and autonomous underwater vehicles (AUVs). Typical sensors include latitude, longitude, speed, heading, pitch, roll, and depth. It was deployed on a mobile platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 3.0 digital infrastructure, with quality assurance and derived data products following established practices.
DOI: 10.34943/6bd25d26-24a4-466c-96ed-590921b9282c
title: Hercules Temperature Sensor Deployed 2021-08-06

description: The Temperature Probe on Hercules ROV was deployed on 2021-08-06 on Hercules. This Remotely Operated Vehicle is operated by Ocean Exploration Trust. This device is a Temperature Sensor. Temperature sensors measure water or ground temperatures. It was deployed on a mobile platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 3.0 digital infrastructure, with quality assurance and derived data products following established practices.
DOI: 10.5281/zenodo.14839711
title: DAtos_practica_Mater

description: Datos necesarios para una práctica de CVD
DOI: 10.5281/zenodo.14839712
title: DAtos_practica_Mater

description: Datos necesarios para una práctica de CVD
DOI: 10.48577/jpl.oqxdqi
title: Miniaturized Bulk Metallic Glass Gripping Structures for Robotic Mobility Platforms

description: Advancements in bulk metallic glass thermoplastic forming unleash the potential to fabricate microscale metallic features with unparalleled precision and durability, i.e. microspine gripping structures for mobility platforms on planetary or in-space robots. Four designs of grippers were fabricated and rigorously tested. Coefficient of friction on four test surfaces were measured and compared to SiC paper and Velcro. The hardness and elasticity of the bulk metallic glasses make them a game-changer in the field, offering a superior alternative to conven tional nonmetallic grippers.
DOI: 10.48577/jpl.egfxyp
title: ELSA: Europa Lander Lidar Sensor Assembly – Field Testing and Performance Analysis

description: To enable safe landing on unknown terrain, such as Europa, JPL has been developing next-generation dual-mode lidars that can provide long range altimetry as well as dense 3D mapping in real-time during landing. In this paper, we discuss the design, integration, and performance of one of the lidars built in partnership with industry. A form, fit, function and performance equivalent lidar model was field-tested on a fully instrumented helicopter platform over natural terrains and man-made targets. We present some of the highlights from the various flight tests.
DOI: 10.48577/jpl.j6ohh5
title: Enabling Fast Flyby Small Body Science with Onboard Navigation

description: Small body exploration via fast flybys is a fast and relatively inexpensive way to explore small bodies. Typically, the most important data gained by the flyby happens at closest approach. However, because the speed of the flybys is often quite fast, when using standard ground navigation techniques science has to be compromised due to lack of knowledge of where the body is located at the point of closest approach. In the late 1990s, the advent of onboard navigation methods has greatly improved the science return in these types of missions by using images on approach to continually improve the onboard knowledge of the trajectory. The technique has enabled missions like Deep Impact to hit a small body at high speed, as well as continually maintain lock on the object for flybys. In this paper, the basic challenge of fast flybys is explained, and the results of using onboard navigation to solve this problem shown for several historic missions.
DOI: 10.48577/jpl.6bfkup
title: InSight Mission: Prime Mission Operations

description: The InSight Mission has been conducting science operations on Mars since successfully landing on November 26, 2018. The Deployment Phase included evaluation of the Lander health, surveying the area around the Lander for instrument placement, and deployment of the instruments to the Martian surface. Deployment of instruments directly to the Martian surface has never been done before, and allows the instruments direct contact with Mars. Science data collection started during the Deployment Phase, and the Science Monitoring Phase started immediately after instrument deployment completed. InSight has uncovered the geophysical characteristics of Mars. This allows for a better understanding of formation and evolution of Mars (and other terrestrial planets by comparison). Several instruments and sensors, a subset of which were from international partners, are used to gather the science data. Although operations of the lander and instruments have been very successful, there have been challenges along the way. The challenges involved the lander, instruments, and Mars itself. The largest of these challenges was the Heat Probe and Physical Properties (HP3) mole's difficulty in penetrating the Martian surface. The Project/NASA has invested in an extensive almost two-year Mole Recovery effort that itself posed more challenges. The mole recovery involved performing operations never envisioned and went beyond the original designs of the HP3 and the Instrument Deployment System (IDS). This paper will give a background of the mission describe the surface mission operations, describe overcoming operational challenge, and results of the mission so far.
DOI: 10.48577/jpl.38aukv
title: Resonant photonic oscillators and regenerative frequency dividers

description: Optical Kerr frequency combs can be generated when a nonlinear optical microcavity is pumped with coherent light. The frequency combs demodulated on a fact photodiode can produce low noise microwave signals. A photonic system involving a laser, a nonlinear optical cavity and a fast photodiode, as well as auxiliary parts, forms a microwave photonic oscillator. The microwave photonic oscillators involving optical cavities experienced fast development over last decade. The devices based on Kerr frequency combs demonstrated signals with carrier frequencies exceeding 10 GHz and phase noise below -130 dBc/Hz at 10 kHz and -150 dBc/Hz at &gt;1MHz frequency offsets. Packaging the devices in less than 1 cm3 form factors and achieving exceptional environmental insensitivity was demonstrated. Improvement of the spectral purity and stability of the comb oscillators as well as observation of curious optical phenomena, such as formation of discrete time crystals, was realized when a coherent dichromatic optical pump was involved in the comb generation. We here highlight a few recent achievements in realization and study of the microwave photonic oscillators based on Kerr optical frequency comb generated in ultra-high Q whispering gallery mode (WGM) resonators. We also would like to attract attention to the feasibility of generation of low noise microwave signals using lasers self-injection locked to monolithic Fabry-Perot resonators.
DOI: 10.48577/jpl.5vqajk
title: Laboratory analogues of black smoker hydrothermal vent mineral facies relevant to planetary science

description: Hydrothermal systems form when mineral rich vent fluid is released through cracks in the ocean crust, causing a precipitation reaction. These systems are currently, or were previously, present on a variety of planetary bodies in this Solar System, including Earth, Mars and possibly Europa and Enceladus. Hydrothermal systems support diverse ecosystems and provide insight into the origins of life. They contain a number of gradients (e.g., temperature, pH, mineralogy), making the environment a complex system to untangle. Deep ocean hydrothermal vents are difficult to access, requiring ocean cruises, and limited monitoring opportunities. For these reasons, laboratory analogue studies can provide accessible ways to test the primary controls on hydrothermal vent formation, in systems where variables can be better controlled. Past and future planetary missions, like Cassini and Europa Clipper, contain instrument suites capable of detecting organic materials and other environmental data to better determine the ability of a planetary environment to contain life. Due to the importance of hydrothermal environments for future space-flight missions, it is important to consider geochemical conditions in how reactions would proceed, particularly regarding hydrothermal chimney growth. This project explores the growth of laboratory analogues of hydrothermal chimneys, focusing on the mineralogical gradient from interior to exterior and how chemical composition affects the morphology of the chimney. In these experiments, chimneys with different elemental compositions (namely, sulfide rich and sulfide poor iron chimneys) were grown via an injection method to explore how chimneys grow in an environment devoid of life. A primary challenge in these studies is maintaining anoxic conditions; in this paper we explore how these challenges might manifest during experimental set up and analysis. Keywords: anoxic experiments, hydrothermal systems, iron sulfide, ocean worlds