cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.4xrhyg
title: HPC in a Vacuum: Evaluating Future Space Microprocessors

description: Advanced algorithms dictated by future mission needsare pushing space-borne computing requirements. Current platformsused in manned and unmanned spaceflight are limitedby the intersection of radiation tolerance, power consumption,computing performance and safety critical features. Until recently,advanced instruction set architectures (ISAs), algorithmspecific instructions, high speed external interfaces and highperformance on-chip networks were eschewed from processordesigns and current production spacecraft processors are basedon past computing paradigms.Advances in processor manufacturing, emerging ISAs and machinelearning techniques will significantly impact future systemon-chip (SoC) designs, enabling true high-performance spacecomputing. To better understand the computational requirementsof modern spacecraft, a comprehensive set of benchmarksthat include basic system characterization, high performancecomputing, navigation and landing, image recognition, routefinding, data mining and machine learning are necessary tocharacterize candidate architectures. The analysis of these spaceflight focused algorithms will drive the design of next generationspace computing SoCs.
DOI: 10.48577/jpl.0vy0wm
title: OpenCAESAR: Balancing Agility and Rigor in Model-Based Systems Engineering

description: Model-Based System Engineering (MBSE) employs models and formal languages to support the development of complex systems and systems of systems. For many years, NASA Jet Propulsion Laboratory (JPL) has embraced MBSE as a key approach to managing the complexity of system development. Unfortunately, despite the availability of several modeling tools and frameworks, balancing agility and rigor in MBSE has been continuously reported as a challenging task, especially for complex systems and systems of systems that involve multiple domains. This is because existing MBSE approaches may enable agility but compromise rigor, or enhance rigor but impede agility. In this paper, we discuss the challenges of balancing agility and rigor in MBSE across the seven systems engineering architectural functions defined by the Integrated Model-Centric Engineering (IMCE) initiative. We also demonstrate how openCAESAR, an open-source MBSE methodology and framework created at JPL, can be leveraged to strike a balance between agility and rigor through a case study of the Kepler16b project. Our final remarks focus on lessons learned from past projects.
DOI: 10.48577/jpl.gwo9yg
title: A network model for piezoelectric flexure actuators

description: We investigate flexure piezoelectric stacks to produce large force and fine position control. The network model for the free ideal stack with many layers was first worked out by Martin [Martin 1963, 1964a, 1964b]. He noted that the stack impedance model in the limit of large layer number n &gt; 8 that a network model for this case could be developed which is identical in form to the network model of the length-thickness mode with appropriate material coefficients from the length extensional (LE 33) mode of the material. This network model allows for the additional determination of the velocities and displacements of the stack surfaces, as well as the acoustic power deliver to any elastic load. We show that this model can be extended to allow for the modelling of acoustic elements, such as non-piezoelectric endcaps and coupling to other structures including flexures. In order to demonstrate the utility of this modeling, we will present the model for a stack embedded in a simple flexure frame. Embedding the piezoelectric stack in a flexure enables preloading of the piezoelectric so that it does not experience tension during operation. This reduces the overall risk of failure. Additionally, flexures have been demonstrated to amplify in the transverse direction the stroke of the stack at low frequencies by a factor that is proportional to the cotangent of the liftoff angle – the angle the flexure makes with the axis of the stack. Impedance measurements of the flexure stack show two additional modes in addition to the stack fundamental length extensional mode. Investigations on the other modes of the flexured stack actuator show a low frequency flexure mode that is  out of phase with the stack extension and with a resistance at resonance that is smaller by the amplification factor of the flexure. A flexure breathing mode is found just below the stack resonance. At the higher frequency a clamped stack resonance in phase with the flexure displacements is shown. In the paper, we will also discuss how the flexure network model can be implemented into other structures.
DOI: 10.48577/jpl.mukavi
title: NISAR Joint Radar Antenna Deployment Phase Operations

description: The NASA-ISRO Synthetic Aperture Radar (NISAR) mission is an Earth Observatory operating in a near-polar orbit with primary mission objectives to measure changes in Earth’s surfaces and biomass every 12 days using both L-band and S-band radar systems. NISAR is a collaboration between NASA’s Jet Propulsion Laboratory (JPL) and multiple Indian Space Research Organisation (ISRO) centres. The Spacecraft bus and S-band radar are provided by ISRO, while the Radar Payload, consisting of the L-band radar and deployable Radar Antenna are provided by JPL. The Radar Antenna, which is the primary radar aperture for the mission, consists of a 12 meter diameter Radar Antenna Reflector (RAR) mounted to a 9 meter Radar Antenna Boom (RAB), which are both stowed to fit within ISRO’s launch vehicle, a Launch Vehicle Mark II (LVM-II). Deployment of the RAB and RAR from their stowed configuration to a fully deployed science configuration occurs within the designated Deployment Phase of the mission, which begins on mission day 10, after early Commissioning Phase activities are completed post launch, and extends nominally until mission day 17. The Deployment Phase requires close collaboration between ISRO and JPL teams to define the nominal plan for flight operations as well as potential off-nominal scenarios and recovery options, while adhering to several design and operational constraints. To ensure clear communication between organizations, detailed timelines were developed for each deployment day to capture the setup and execution of each daily activity down to the minute. The timelines provide a complete view of ground station coverage, uplink and downlink needs, hardware and software configurations, as well as critical deployment details. Time-ordered lists are generated from the timelines, which are used to develop procedures for on-orbit operations. In the final year leading up to launch and commissioning, planned for early 2024, the ISRO and JPL teams are working closely to plan scenario and operations tests to validate the joint commanding required in flight, and to ensure that on-orbit procedures and operations are fully rehearsed. Final flight tests are conducted as the NISAR Observatory is assembled and tested prior to launch.
DOI: 10.48577/jpl.opbetf
title: Constraints on atmospheric water abundance and cloud deck pressure in the warm Neptune GJ 3470 b via CARMENES transmission spectroscopy

description: Observations of cooler atmospheres of super-Earths and Neptune sized objects often show ŕat transmission spectra. The most likely cause of this trend is the presence of aerosols (i.e. clouds and hazes) in the atmospheres of such objects. Highresolution spectroscopy provides an opportunity to test this hypothesis by targeting molecular species whose spectral line cores extend above the level of such opaque decks. In this work, we analyse high-resolution infrared observations of the warm Neptune GJ 3470 b taken over two transits using CARMENES (R ∼ 80,000) and look for signatures of H2O (previously detected using HST WFC3+Spitzer observations) in these transits with a custom pipeline fully accounting for the effects of data cleaning on any potential exoplanet signal. We őnd that our data are potentially able to weakly detect (∼ 3𝜎) an injected signal equivalent to the best-őt model from previous HST WFC3+Spitzer observations However, we do not make a signiőcant detection using the actual observations. Using a Bayesian framework to simultaneously constrain the H2O Volume Mixing Ratio (VMR) and the cloud top pressure level, we select a family of models compatible with the non detection. These are either very high VMR, cloud-free models, solar-abundance models with a high cloud deck, or sub-solar abundance models with a moderate cloud deck. This is a broader range compared to published results from low-resolution spectroscopy, but is also compatible with them at a 1𝜎 level.
DOI: 10.48577/jpl.wywvlb
title: UAV-borne bistatic SAR and InSAR experiments in support of STV and SDC target observables

description: No abstract available.
DOI: 10.48577/jpl.aknct9
title: Inferred drought-induced plant allocation shifts and their impact on drought legacy at a tropical forest site

description: While droughts predominantly induce immediate reductions in plant carbon uptake, they can also exert long-lasting effects on carbon fluxes through associated changes in leaf area, soil carbon, etc. Among other mechanisms, shifts in carbon allocation due to water stress can contribute to the legacy effects of drought on carbon fluxes. However, the magnitude and impact of these allocation shifts on carbon fluxes and pools remain poorly understood. Using data from a wet tropical flux tower site in French Guiana, we demonstrate that drought-induced carbon allocation shifts can be reliably inferred by assimilating Net Biosphere Exchange (NBE) and other observations within the CARbon DAta MOdel fraMework (CARDAMOM). This model-data fusion system allows inference of optimized carbon and water cycle parameters and states from multiple observational data streams. We then examined how these inferred shifts affected the duration and magnitude of drought's impact on NBE during and after the extreme event. Compared to a static allocation scheme analogous to those typically implemented in land surface models, dynamic allocation reduced average carbon uptake during drought recovery by a factor of 2.8. Additionally, the dynamic model extended the average recovery time by 5 months. The inferred allocation shifts influenced the post-drought period by altering foliage and fine root pools, which in turn modulated gross primary productivity and heterotrophic respiration for up to a decade. These changes can create a bust-boom cycle where carbon uptake is enhanced some years after a drought, compared to what would have occurred under drought-free conditions. Overall, allocation shifts accounted for 65% [46%-75%] of drought legacy effects in modeled NBE. In summary, drought-induced carbon allocation shifts can play a substantial role in the enduring influence of drought on cumulative land-atmosphere CO2 exchanges and should be accounted for in ecosystem models.
DOI: 10.48577/jpl.m09xpq
title: Calibration and Performance of the Spacecraft Atmosphere Monitor, an Air Constituent Monitor for Human Spaceflight

description: The Spacecraft Atmosphere Monitor (S.A.M.) is a miniaturized gas chromatograph mass spectrometer (GC/MS) instrument for monitoring the cabin atmosphere during human spaceflight missions. The first Technology Demonstration Unit (TDU1) operated successfully aboard the International Space Station (ISS) from August 2019 to July 2021. The second unit, TDU2, will be delivered to ISS in 2023. While on-station, TDU2 will continuously monitor the major atmospheric constituents and when commanded perform analysis of the cabin atmosphere for trace organic volatiles. The S.A.M. TDU2 uses the same quadrupole ion trap mass spectrometer (QITMS) sensor as in TDU1, but includes a MEMS preconcentrator, gas chromatograph, and microvalve system. Its miniature, ruggedized form factor allows the S.A.M. to be aisle-deployed to monitor the cabin in different locations and during activities such as exercise and sleep
DOI: 10.48577/jpl.yllwzu
title: Von Karman Lecture Series: EMIT

description: No abstract available.
DOI: 10.48577/jpl.ippi3n
title: OCO-2/3 Calibration Report

description: No abstract available.
DOI: 10.48577/jpl.bcxgkh
title: Rapid Response Missions for Planetary Defense and Planetary Science Targets

description: No abstract available.
DOI: 10.48577/jpl.yjot57
title: Uncertainty Quantification of Heat Microbial Reduction for NASA Planetary Protection

description: No abstract available.
DOI: 10.48577/jpl.oa87ly
title: Imaging Spectroscopy for Earth Science, Applications, and Discovery Through the Solar System

description: No abstract available.
DOI: 10.48577/jpl.vet0yl
title: OCO-2/3 Vicarious Calibration Update

description: No abstract available.
DOI: 10.48577/jpl.n6y2k4
title: High-Throughput Viscoelastic Testing for Composite Laminates

description: Composites are excellent material candidates for large deployable spacecraft structures. Prior to deployment in space, these structures are stowed in the furled configuration for prolonged periods. The mechanical response of composite laminates used in these structures is greatly influenced by the viscoelasticity of the polymer matrix. Characterization of viscoelastic properties is time-consuming because of the necessity to test at multiple temperatures and stress levels. The present study reports an experimental method for testing viscoelastic composites with high data output. The proposed method utilizes an imposed stress variation on the laminates and measures the time histories of the corresponding strain fields using the full-field technique digital image correlation. The proposed method dramatically reduces testing efforts by producing a large amount of data in a single experiment.
DOI: 10.48577/jpl.4okm09
title: Real-Time Planning and Control for Spacecraft Robotic Systems

description: No abstract available.
DOI: 10.48577/jpl.w1dvtq
title: Systems Engineering Applications of UQ in Space Mission Formulation

description: No abstract available.
DOI: 10.48577/jpl.ydscmu
title: Use of Smallsat-Sized Conical- and Cross-Track Scanning Passive Microwave Sensors to Complement the Precipitation Constellation and Facilitate Oceanic Convection Investigations

description: No abstract available.
DOI: 10.48577/jpl.afuwgi
title: Progress Towards NASA’s Surface Topography and Vegetation Observing System

description: No abstract available.
DOI: 10.48577/jpl.oqmzef
title: Work as a Roboticist at NASA Jet Propulsion Lab

description: No abstract available.
DOI: 10.48577/jpl.oa6382
title: Exploring Ocean Worlds: The search for life and interesting chemistry in our Cosmic Backyard

description: No abstract available.
DOI: 10.48577/jpl.crhwxz
title: SWOT Applications - CYGNSS-TROPICS Applications Workshop Panel on Mission Synergies

description: No abstract available.
DOI: 10.48577/jpl.7ikgep
title: Mapping methane and carbon dioxide point sources from space with EMIT

description: No abstract available.
DOI: 10.48577/jpl.rwaiqs
title: AMMOS/POMM Planetary Orbital Mosaicking and Mapping Infrastructure Tools

description: No abstract available.
DOI: 10.48577/jpl.gzq1ok
title: Design Considerations of Lithium-ion Batteries for Lunar Missions

description: No abstract available.
DOI: 10.48577/jpl.jwfe6t
title: Recent Advances on Microcircuit Standards

description: No abstract available.
DOI: 10.48577/jpl.5pwlta
title: Roadmap for future GGG development and application of machine learning to XCO2 diurnal cycles

description: No abstract available.
DOI: 10.48577/jpl.ogszyl
title: CEOS Ecosystem Extent Task Team for SIT-39

description: No abstract available.
DOI: 10.48577/jpl.vaaddm
title: Mars Robots and Robotics at NASA JPL

description: No abstract available.
DOI: 10.48577/jpl.2cgr17
title: How T2SL FPAs have Changed the Infrared Landscape

description: No abstract available.
DOI: 10.48577/jpl.kbiu0r
title: Multiple Uplinks Per Antenna (MUPA): Potential Communication and Navigation Benefits for Smallsats

description: No abstract available.
DOI: 10.48577/jpl.jxnx2a
title: Probing the Atmosphere and Interior Structure of Uranus with Gravity Sounding

description: No abstract available.
DOI: 10.48577/jpl.gqxhbr
title: Overview of JPL Robotics for UC Berkeley

description: No abstract available.
DOI: 10.48577/jpl.jvxzmx
title: Retrieval of the Total Meltwater Amount in the Greenland Ice Sheet Using SMAP L-band Radiometry

description: No abstract available.
DOI: 10.48577/jpl.m8hwdz
title: Applications Opportunities of the NASA-ISRO NISAR Mission

description: No abstract available.
DOI: 10.48577/jpl.9hrupd
title: Microwave Retrieval of Melt Water Amounts over Greenland Ice Sheet: Algorithm Development and Validation

description: No abstract available.
DOI: 10.48577/jpl.lfjvsy
title: A Compact Terahertz Instrument for Continuity Microwave Limb Sounding of Atmosphere

description: No abstract available.
DOI: 10.48577/jpl.vclzg1
title: The Earth Surface Mineral Dust Source Investigation (EMIT) Imaging Spectroscopy Mission on the ISS and SBG VSWIR Update

description: No abstract available.
DOI: 10.48577/jpl.vy1tdc
title: 345 GHz SIS Junction Development for ngEHT

description: No abstract available.
DOI: 10.48577/jpl.lzaikb
title: GGOS External Relations Update

description: No abstract available.
DOI: 10.48577/jpl.ww3qiv
title: Evaluating Robustness and Sensitivity of Optical Flow in Retrieving Atmospheric Motion Vectors

description: No abstract available.
DOI: 10.48577/jpl.f1e6cp
title: The 2024 NASA AfriSAR-2 campaign for tropical forest structure measurements

description: No abstract available.
DOI: 10.48577/jpl.ihzmzc
title: Analogy Cost Estimation for CubeSats using COMPACT

description: No abstract available.
DOI: 10.48577/jpl.zokbgx
title: The Opportunities and Challenges of Enabling Small Spacecraft Missions to Mars

description: No abstract available.
DOI: 10.48577/jpl.iysi7b
title: Modeling the Aerodynamics of Supersonic Parachutes for Mars Applications

description: No abstract available.
DOI: 10.26302/sshade/experiment_zed_20230103_02
title: FIR spectra of phyllosilicate pellets irradiated by He+ and Ar+ ions

description: FIR spectra of phyllosilicate pellets irradiated by $Ar^+$ or $He^+$.
DOI: 10.25346/s6/zek1j0/q6qu3w
title: Figure 6 Panel C.opju
DOI: 10.5281/zenodo.10955618
title: Exploring Beneficial Properties of Haskap Berry Leaf Compounds for Gut Health Enhancement

description: Data and the publication to which they are related
DOI: 10.5281/zenodo.10955619
title: Exploring Beneficial Properties of Haskap Berry Leaf Compounds for Gut Health Enhancement

description: Data and the publication to which they are related
DOI: 10.25346/s6/zek1j0/dxywwd
title: Figure 5 panel A.opju
DOI: 10.3886/e113100v1-148361
title: Replication data for: How Do Patents Affect Follow-On Innovation? Evidence from the Human Genome

description: We investigate whether patents on human genes have affected follow-on scientific research and product development. Using administrative data on successful and unsuccessful patent applications submitted to the US Patent and Trademark Office, we link the exact gene sequences claimed in each application with data measuring follow-on scientific research and commercial investments. Using this data, we document novel evidence of selection into patenting: patented genes appear more valuable—prior to being patented—than non-patented genes. This evidence of selection motivates two quasi-experimental approaches, both of which suggest that on average gene patents have had no quantitatively important effect on follow-on innovation.
DOI: 10.5281/zenodo.10896153
title: ELITE SLWR: global 1km 5-min SLUR at SIN Grid-Terra (2006_228-243)

description: The Essential thermal Infrared remoTe sEnsing (ELITE) product suite currently has four types of products, including land surface temperature (LST: clear-sky and all-sky), emissivity (NBE: narrowband emissivity; BBE: broadband emissivity; and spectral emissivity), the component of surface radiation and energy budget (SLUR: surface longwave upwelling radiation; SLDR: surface longwave downward radiation SLDR; SLNR: surface longwave net radiation), and the component of Earth’s radiation budget (OLR; outgoing longwave radiation; RSR: reflected solar radiation). The spatial-temporal resolutions of the ELITE products are mainly determined by the employed satellite data sources. For more information about ELITE products, please refer to the website (https://elite.bnu.edu.cn).

This dataset is ELITE surface longwave upward radiation (SLUR) product at 1km spatial resolution and 5-min temporal resolution. It is provided on a Sinusoidal grid and ranges from 2000 to 2022 (continuously updated). This dataset was generated from the Moderate Resolution Imaging Spectrometer (MODIS) data using the algorithms developed by Cheng et al. (2016).

This is the ELITE SLUR product in 2006 (DOY: 228-243). Please click here to download the ELITE SLUR product in 2006 (DOY: 244-258).

Dataset Characteristics:



Spatial Coverage: Global

Temporal Coverage: 2006-8-16 ~ 2006-8-31

Spatial Resolution: 1 km

Temporal Resolution: 5-min

Data Format: h5

Projection: Sinusoidal

Scale: 0.05

Offset: -1000


Citation(Please cite these papers when using the data):



Cheng, J., & Liang, S. (2016). Global estimates for high spatial resolution clear-sky land surface upwelling longwave radiation from MODIS data. IEEE Transactions on Geoscience and Remote Sensing, 54, 4115-4129.


If you have any questions, please contact Prof. Jie Cheng (eliteqrs@126.com)
DOI: 10.5281/zenodo.10896154
title: ELITE SLWR: global 1km 5-min SLUR at SIN Grid-Terra (2006_228-243)

description: The Essential thermal Infrared remoTe sEnsing (ELITE) product suite currently has four types of products, including land surface temperature (LST: clear-sky and all-sky), emissivity (NBE: narrowband emissivity; BBE: broadband emissivity; and spectral emissivity), the component of surface radiation and energy budget (SLUR: surface longwave upwelling radiation; SLDR: surface longwave downward radiation SLDR; SLNR: surface longwave net radiation), and the component of Earth’s radiation budget (OLR; outgoing longwave radiation; RSR: reflected solar radiation). The spatial-temporal resolutions of the ELITE products are mainly determined by the employed satellite data sources. For more information about ELITE products, please refer to the website (https://elite.bnu.edu.cn).

This dataset is ELITE surface longwave upward radiation (SLUR) product at 1km spatial resolution and 5-min temporal resolution. It is provided on a Sinusoidal grid and ranges from 2000 to 2022 (continuously updated). This dataset was generated from the Moderate Resolution Imaging Spectrometer (MODIS) data using the algorithms developed by Cheng et al. (2016).

This is the ELITE SLUR product in 2006 (DOY: 228-243). Please click here to download the ELITE SLUR product in 2006 (DOY: 244-258).

Dataset Characteristics:



Spatial Coverage: Global

Temporal Coverage: 2006-8-16 ~ 2006-8-31

Spatial Resolution: 1 km

Temporal Resolution: 5-min

Data Format: h5

Projection: Sinusoidal

Scale: 0.05

Offset: -1000


Citation(Please cite these papers when using the data):



Cheng, J., & Liang, S. (2016). Global estimates for high spatial resolution clear-sky land surface upwelling longwave radiation from MODIS data. IEEE Transactions on Geoscience and Remote Sensing, 54, 4115-4129.


If you have any questions, please contact Prof. Jie Cheng (eliteqrs@126.com)
DOI: 10.15468/dl.kkyx4p
title: Occurrence Download

description: A dataset containing 117 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Euphorbia perennans (Shinners) Warnock & M.C.Johnst."
 ]
}

 The dataset includes 117 records from 24 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0160507-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.