cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.xnqsvx
title: Imaging the abrupt collapse of the Sacramento Valley 1 aquifer over the 2021-2022 California drought

description: Ground deformation over aquifer systems reflects changes in water pressure 5 at depth and provides critical insight into groundwater management. Recov6 erable displacement implies sustainable groundwater exploitation, while irre7 versible compaction indicates permanent aquifer damage and compromised 8 long-term groundwater availability. However, the transition between these 9 regimes is not well understood. Here we use space-based and in situ measure10 ments of ground deformation and groundwater levels to capture this critical 11 transition in the Sacramento Valley over the recent California drought. While 12 deformation was primarily poroelastic during the 2016-2020 inter-drought pe13 riod, subsidence accelerated sharply in 2021, indicating significant inelastic 14 compaction and permanent loss of aquifer storage capacity of 0.2 km3/year.
DOI: 10.48577/jpl.cmhw9n
title: Tsunami genesis of strike-slip earthquakes revealed in the 2018 Indonesian Palu event

description: The devastating tsunami after the 2018 Indonesian Sulawesi-Palu strike-slip earthquake was a surprise because strike-slip faulting is a known phenomenon of primarily lateral movement of land, while tsunamis are believed to be caused by vertical movements of seafloor or landslides. Here we demonstrated how the strike-slip faulting could create enough oceanic kinetic energy in the lateral directions that might have powered the tsunami. We constructed three earthquake inversion solutions from seismographs, satellite radar and optical imagery, and used an open-source ocean circulation model to replicate the tsunami. Our experiments revealed three new results: (1) the main force of the tsunami could be created by the horizontal displacement of deeper-water slopes along the Makassar coast, evidenced by the Pantoloan tide-gauge record that has two distinguished crests, propagating southward into the Palu Bay, twice higher than the local resonance waves; (2) the Mamuju tide-gauge recorded two types of tsunamis: the “early arrival” tsunami originated from nearby coast and the “later arrival” larger tsunami originated from the Palu Bay; and (3) the eyewitness account of the whirlpool circulation in the Palu Bay could be better explained by the horizontal strike-slip forcing of the two involved tectonic plates. Our findings suggest that the tsunami formation mechanism of strike-slip earthquakes is more complex than previously thought.
DOI: 10.48577/jpl.u0fbrl
title: Atmospheric CO2 Depletion near the Surface in the Martian Polar Regions

description: The kinetic temperature of the martian seasonal caps is controlled by the partial pressure of atmospheric CO2 at the surface. When carbon dioxide condenses, typically near the poles, light non-condensable species (Ar, N2, CO, etc.) accumulate in the atmosphere, resulting in a decrease of the CO2 partial pressure and depressing the local frost point temperature. The buoyant air should mix laterally and vertically within the polar vortices. Observations show that the Martian seasonal caps’ kinetic temperatures are ~ 0-4 K below the expected CO2 frost point, depending on latitude and season, indicating atmospheric CO2 gas depletion at the surface/atmosphere interface. In the North and South, we find relatively similar non-condensable peak enhancement factors (e.g., EFNC ~ 6-8, up to ~8.7 in the North) at most latitudes, confirming the efficient meridional mixing within the polar vortices, despite steep surface condensation gradients. In the South, this surface enhancement is similar to column-integrated values derived from Gamma Ray Spectrometer data, indicating efficient vertical mixing. But in the North, the surface depletion is much larger than in the entire column, suggesting poor vertical mixing. Reduced infrared emission of the seasonal caps stemming from CO2 depletion is not a major energy balance factor. This work illustrates how the atmosphere’s composition at the surface can be significantly different from column-integrated values.
DOI: 10.48577/jpl.8ujegz
title: Simultaneous Radio and X-ray Observations of the Magnetar Swift J1818.0-1607

description: Swift J1818.0−1607 is a radio-emitting magnetar that was discovered in X-ray outburst in March 2020. Starting four days after this outburst, we began a nearly five month multi-frequency observing campaign at 2.2, 8.4, and 32 GHz using telescopes in the NASA Deep Space Network. Using a dual-frequency observing mode, we were able to observe Swift J1818.0−1607 simultaneously at either 2.2 and 8.4 GHz or 8.4 and 32 GHz. We find that the flux density increases substantially and the spectrum changes from uncharacteristically steep (alpha &lt; −2.2) to the essentially flat (alpha \approx 0) spectrum typical of radio-emitting magnetars. In addition to the expected profile evolution on timescales of days to months, we find that Swift J1818.0−1607 also exhibits mode switching where the pulse profile changes between two distinct shapes on timescales of seconds to minutes. For two of the radio observations, we also had accompanying X-ray observations using the Neutron Star Interior Composition Explorer (NICER) telescope that occurred on the same day. We find a near anti-alignment (0.40 phase cycles) between the peaks of the radio and X-ray pulse profiles, which is most likely explained by an intrinsic misalignment between the X-ray and radio emitting regions.
DOI: 10.48577/jpl.weuior
title: Analysis of experimental spectra of phosphine in the Tetradecad range near 2.3 μm using ab initio calculations

description: Due to its major interest for the chemistry of planetary atmospheres and exobiology, accurate spectroscopy data of phosphine are required for the search of signatures of this molecule in astronomical observations. In this work, high resolution infrared laboratory spectra of phosphine were analyzed for the first time in the full Tetradecad region (3769 - 4763 cm-1) involving 26 rotationally resolved bands. Overall, 3242 lines were assigned in spectra previously recorded by Fourier transform spectroscopy at temperatures 200 K and 296 K, using a combined theoretical model based on ab initio calculations. The total nuclear motion Hamiltonian of PH3 including ab initio potential energy surface, was reduced to an effective Hamiltonian using the high-order contact transformation method adapted to vibrational polyads of the AB3 symmetric top molecules, followed by empirical optimization of the parameters. At this step, the experimental line positions were reproduced with a standard deviation of 0.0026 cm-1 that provided unambiguous identification of observed transitions. The effective dipole transition moments of the bands were obtained by fitting to the intensities obtained from variational calculations using the ab initio dipole moment surface. The assigned lines were used to newly determine 1609 experimental vibration-rotational levels up to Jmax= 18 with energy in the range 3896-6037 cm-1 that represents significant extension towards higher energies compared to previous works. Transitions for all 26 sublevels of the Tetradecad were identified but with noticeably fewer transitions for fourfold excited bands because of their weaker intensity. At the final step, pressure-broadened half widths were attached to each transition and a composite line list adopting ab initio intensities and empirical line positions corrected to the accuracy of about 0.001 cm-1 for strong and medium transitions was validated against experimental spectra available in the literature.
DOI: 10.48577/jpl.fuv3mr
title: Using InSight data to calibrate seismicity from remote observations of surface faulting

description: We use a scaling relationship between fault length and scalar moment to predict seismicity from the Cerberus Fossae graben using shear modulus and fault lengths. Cerberus Fossae is 20-40° from the InSight lander, and matches the location of 21 recorded seismic events with Mw ≥ 3. These unique seismic observations make an ideal laboratory to test our method of predicting seismicity on another planet using surface fault observations. Terrestrial faults have observed patterns of rupture depth distributions and segmentation. We use these patterns and magnitudes of detected marsquakes to predict moment release of events in Cerberus Fossae over a range of plausible Martian rupture vertical slip extents (VSEs) of 2, 20, and 40 km, which are rooted in estimates of crustal thickness, elastic thickness, and seismicity depth. We sum individual events for each case to determine cumulative moment release, and use deformation duration to determine annual moment release. Predicted seismicity rates are dependent on duration of deformation, which in this case is well constrained to 2-10 Ma. We compare our results to events recorded at Cerberus Fossae by InSight, and find that seismicity rates for the cases with a 40 km maximum VSE or no limit on VSE are within an order of magnitude of observed seismicity. However, faults with maximum VSEs of 2 km best match observed magnitudes. Our approach, using only observed fault lengths, segmentation, estimates of seismogenic thickness, and deformation duration, produces seismicity seismicity that are as accurate as methods taking into account rupture offset.
DOI: 10.48577/jpl.kcabpc
title: Phase-locking of THz QC-VECSELs to a microwave reference

description: High resolution frequency study and phase-locking have been performed on terahertz quantum-cascade vertical-external-cavity surface-emitting-lasers at 2.5 THz and 3.4 THz. A subharmonic diode mixer is used to downconvert the THz signal to a gigahertz intermediate frequency (IF). Feedback from reflections at the mixer are observed to have a strong influence on the free-running QC-VECSEL frequency stability as a result of efficient coupling to free space compared to more typical ridge waveguide lasers. Instabilities in feedback result in free-running linewidths of tens of MHz, and at times &gt;100 MHz. The QC-VECSEL IF signal is phase-locked to a 100 MHz reference using the bias on the device as a means of error correction. Between 90-95% of the QC-VECSEL signal is locked within 2 Hz of the multiplied RF reference, and amplitude fluctuations on the order of 1-10% are observed, depending on the bias point of the QC-VECSEL. The bandwidth of the locking loop is ~1 MHz. Many noise peaks in the IF signal corresponding to mechanical resonances in the 10 Hz-10 kHz range are observed. These peaks are generally -30 to -60 dB below the main tone, and are below the phase noise level of the multiplied RF reference which ultimately limits the phase noise of the locked QC-VECSEL.
DOI: 10.48577/jpl.usd5on
title: Assessment of Surface Fractional Water Impacts on SMAP Soil Moisture Retrieval

description: Fractional water (FW) correction of satellite microwave brightness temperature (Tb) observations is a prerequisite for accurate soil moisture (SM) mapping over mixed land and water areas. Failure to adequately account for the influence of FW within a satellite footprint can bias the Tb signals over land, resulting in SM retrieval error. Here, we evaluated the FW impacts on NASA Soil Moisture Active Passive (SMAP) Lband (1.4 GHz) SM retrievals using two water masks including (a) the NASA Terra Moderate Resolution Imaging Spectroradiometer (MODIS) Land Water Mask version 6 (MOD44W) multi-year (2015-2019) water record and (b) the Ocean Discipline Processing System (ODPS) water mask previously used for SMAP global operational Tb and SM processing. The MOD44W and ODPS data were first compared with the European Commission's Joint Research Centre (JRC) Landsat-based water record averaged for non-frozen months from 2015 to 2019 over a 1-km global grid, excluding ocean and permanent snow/ice areas. MOD44W showed major improvements in land/water classifications relative to the ODPS, with producer accuracy increasing from 50.02% to 95.02%, and user accuracy from 53.93% to 91.73% for water pixels. For assessing the FW impacts on SM retrievals, the same single channel V-polarization (SCA-V) algorithm was applied to enhanced resolution (9-km) SMAP Tb datasets corrected using ODPS and MOD44W water masks separately. MOD44W showed overall greater FW values (mean FW increase of 0.006 for landdominated grid cells) relative to the ODPS, leading to relatively drier SM retrievals (mean decrease: -0.012 m3 /m3 ). However, the majority (~77%) of SMAP grid cells showed minimal FW coverage (FW ≤ 0.01), where associated impacts on SM retrievals are negligible (Root Mean Square Difference or RMSD 0.009 m3 /m3 ). Additional comparisons with globally distributed SM measurements confirmed consistently lower SM retrieval biases (mean decrease 0.04 m3 /m3 ) and higher correlations (mean increase 0.06) of the MOD44W-based results relative to those based on the ODPS over five station groups with absolute FW difference higher than 0.01. Our results revealed non-negligible SM retrieval uncertainty introduced from the underlying ancillary FW data for areas with substantial water presence (e.g. FW&gt;0.01). More accurate representation of FW conditions over the SMAP era (post-2015) is expected to further improve the SMAP SM retrieval accuracy.
DOI: 10.48577/jpl.o7xkgf
title: INCUS as RainCube and TEMPEST-D Legacy

description: RainCube (Radar in a CubeSat) and TEMPEST-D (Temporal Experiment for Storms and Tropical Systems - Demonstration) demonstrated in 2018 that deployment of active and passive microwave sensors to monitor storms and precipitation from space is possible on platforms as small as 6U CubeSats. Despite their implementation as high-risk technology demonstrations, with very low budgets compared to their predecessors, they both survived more than two years in orbit (well beyond their commitments). These demonstrations opened the gates to satisfy several long-standing unmet needs by the scientific and operational weather and climate communities. Among them is the need to observe the evolution of the vertical structure of convective storms in the Tropics at the temporal scales relevant to convective processes (i.e. tens of seconds to few minutes) in order to advance our understanding of convective processes and the environmental conditions behind them via modeling and analysis. The INCUS (Investigation of Convective Updrafts) mission concept aims at addressing this need by deploying 3 small satellites each carrying an augmented version of the RainCube radar. One of the 3 small satellites also includes a millimeter wave radiometer inherited from TEMPEST-D. In this presentation we illustrate some of the challenges, opportunities and achievements critical for the transition of the INCUS mission concept from being purely aspirational to viable in the span of a decade.
DOI: 10.48577/jpl.rjb0hj
title: SMAP Science and Application Results

description: Science and application results appearing in peer- reviewed journal papers in 2021 are highlighted in this paper. With over six years of science data acquisition, science data products of the NASA Soil Moisture Active Passive (SMAP) satellite project are now being applied in diverse subdisciplines in Earth System science. In 2021 there were close to two-hundred papers appearing in peer-reviewed disciplinary journals. In this paper we highlight a few of the research findings and applications that were reported in the calendar year.
DOI: 10.48577/jpl.up0hbm
title: Evaluating Terrain-Dependent Performance for Martian Frost Detection in Visible Satellite Observations

description: Seasonal frosting and defrosting on the surface of Mars is hypothe- sized to drive both climate processes and the formation and evolu- tion of geomorphological features such as gullies. Past studies have focused on manually analyzing the behavior of the frost cycle in the northern mid-latitude region of Mars using high-resolution visible observations from orbit. Extending these studies globally requires automating the detection of frost using data science techniques such as convolutional neural networks. However, visible indica- tions of frost presence can vary significantly depending on the geologic context on which the frost is superimposed. In this study, we (1) present a novel approach for spatially partitioning data to reduce biases in model performance estimation, (2) illustrate how geologic context affects automated frost detection, and (3) propose future work to further mitigate observed biases in automated frost detection work.
DOI: 10.48577/jpl.xdctue
title: AIRS Pulse Tube Coolers Performance Update – 20 Years in Space

description: No abstract available.
DOI: 10.48577/jpl.teruw9
title: The Sea, the Cloud Back Again:A Postdoc’s Tale

description: No abstract available.
DOI: 10.15482/usda.adc/1529103
title: Data from: Evaluating plant biodiversity measurements and exotic species detection in National Resources Inventory Sampling protocols using examples from the Northern Great Plains of the USA

description: Plant biodiversity data and associated soils, ecological site, and livestock management data that were collected at the USDA-ARS Northern Great Plains Research Laboratory in 2011 and 2013. Data were collected using the modified Whittaker technique. The unique design of the Whitaker method reduces autocorrelation among subplots, which is common in standard transect methods (Goslee, 2006). Grassland scientists worldwide use this standard technique to quantify and monitor plant diversity on, for example, Serengeti grasslands (Anderson et al., 2006), South African serpentine grasslands (Reddy et al., 2009), and rangelands in Turkey (Firinciglu et al., 2007) among many other environments. In addition, Sanderson at the NGPRL and Goslee at ARS University Park have developed a large database on plant species diversity of grazing lands in the U.S. (nearly 300 sites sampled using the Whitaker plot method). The use of the standardized Whitaker plot method allows us to combine data from the northern Great Plains with other databases worldwide for larger-scale meta-analyses. The multiscale technique also enables comparison of vegetation dynamics at multiple scales.
Resources in this dataset:


Resource Title: NGPRL modified Whittaker data
File Name: NGPRL_ModWhit.csv


Resource Title:  Ancillary data for NGPRL modified Whittaker plots
File Name: NGPRL_ModWhit_Ancillary data.csv


Resource Title: Data dictionary for NGPRL modified Whittaker data
File Name: Modified Whittaker dataset dictionary.csv


Methods for NGPRL modified Whittaker data
File Name: modWhit methods and metadata.docx
DOI: 10.5281/zenodo.7971823
title: Compact RINEX dataset of: Optimizing simultaneous water level and wave measurements from multi-GNSS interferometric reflectometry over one year at an exposed coastal site

description: Compact-RINEX files (Hatanaka-compressed format) for each day of the deployment. Sampling frequency is 1 Hz.
DOI: 10.5281/zenodo.6471657
title: The Rasendramaṅgala: Manuscript Transcriptions

description: For details of this project, see https://wujastyk.github.io/Rasendramangala/ change: Added the ṭippaṇa files and word breaks
DOI: 10.5281/zenodo.6484115
title: The Rasendramaṅgala: Manuscript Transcriptions

description: For details of this project, see https://wujastyk.github.io/Rasendramangala/ change: Added the ṭippaṇa files and word breaks
DOI: 10.5519/qd.ry7xryu9
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (559 records)
DOI: 10.6084/m9.figshare.23202659
title: Supplementary materials 5.25.23

description: This is the supplementary data file linked with the Physiological Genomics manuscript titled: Novel whole blood transcriptome signatures of changes in maximal aerobic capacity in response to endurance exercise training in healthy women. <br> ABSTRACT Maximal aerobic exercise capacity (V̇O2max) is one of the strongest predictors of morbidity and mortality. Aerobic exercise training can increase V̇O2max, but inter-individual variability is marked and unexplained physiologically. The mechanisms underlying this variability have major clinical implications for extending human healthspan. Here, we report the first comprehensive, RNA-seq study of circulating transcriptome signatures related to ΔV̇O2max. We used RNA-seq to characterize transcriptomic predictors of ΔV̇O2max in healthy women who completed a 16-week, randomized controlled trial comparing higher vs. lower aerobic exercise training volume and intensity (four training groups, fully crossed). We found striking baseline gene expression differences in subjects who responded to aerobic exercise training with robust (R) vs. little/no (NR) ΔV̇O2max.
DOI: 10.6084/m9.figshare.23202659.v1
title: Supplementary materials 5.25.23

description: This is the supplementary data file linked with the Physiological Genomics manuscript titled: Novel whole blood transcriptome signatures of changes in maximal aerobic capacity in response to endurance exercise training in healthy women. <br> ABSTRACT Maximal aerobic exercise capacity (V̇O2max) is one of the strongest predictors of morbidity and mortality. Aerobic exercise training can increase V̇O2max, but inter-individual variability is marked and unexplained physiologically. The mechanisms underlying this variability have major clinical implications for extending human healthspan. Here, we report the first comprehensive, RNA-seq study of circulating transcriptome signatures related to ΔV̇O2max. We used RNA-seq to characterize transcriptomic predictors of ΔV̇O2max in healthy women who completed a 16-week, randomized controlled trial comparing higher vs. lower aerobic exercise training volume and intensity (four training groups, fully crossed). We found striking baseline gene expression differences in subjects who responded to aerobic exercise training with robust (R) vs. little/no (NR) ΔV̇O2max.
DOI: 10.26030/vsya-2v22
title: Artificial gravity partially protects space-induced neurological deficits in Drosophila melanogaster

description: Spaceflight poses risks to the central nervous system (CNS), and understanding neurological responses is important for future missions. We report CNS changes in Drosophila aboard the International Space Station in response to spaceflight microgravity (SFμg) and artificially simulated Earth gravity (SF1g) via inflight centrifugation as a countermeasure. While inflight behavioral analyses of SFμg exhibit increased activity, postflight analysis displays significant climbing defects, highlighting the sensitivity of behavior to altered gravity. Multi-omics analysis shows alterations in metabolic, oxidative stress and synaptic transmission pathways in both SFμg and SF1g; however, neurological changes immediately postflight, including neuronal loss, glial cell count alterations, oxidative damage, and apoptosis, are seen only in SFμg. Additionally, progressive neuronal loss and a glial phenotype in SF1g and SFμg brains, with pronounced phenotypes in SFμg, are seen upon acclimation to Earth conditions. Overall, our results indicate that artificial gravity partially protects the CNS from the adverse effects of spaceflight. This study derives results from the in-flight video analysis (video recording assay).
DOI: 10.34740/kaggle/dsv/5777146
title: Top 500 anime rating
DOI: 10.6084/m9.figshare.23203346
title: Data - Di Martino et al 2023

description: Image annotations used to train the computer vision model behind DeepBryo. Images are divided into train and val sets. The corresponding annotations are inside each folder. Annotations follow the COCO JSON format.