cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17169/refubium-46986
title: The Impact of Arctic Amplification on Mid-latitude Winter Weather: An Analysis of the Stratospheric Pathway

description: The dataset includes climate model simulation output for three simulations with constant boundary conditions: pre-industrial (ts1850), present (ts2020) and future (ts2100).
description: Data is provided on a regular 128×64 longitude-latitude grid covering the globe. Some datasets are available for the Northern Hemisphere only. Height-resolved data spans pressure levels from 1000 hPa to 0.01 hPa.
description: This study explores the stratospheric pathway of the Arctic mid-latitude linkage (AML), a mechanism that connects Arctic amplification (AA) to cold winter weather in mid-latitudes. Using the chemistry-climate model EMAC, we investigate the transition of the AML signal between the troposphere and the stratosphere, focusing on changes in wave activity. Three timeslice experiments were analyzed, covering pre-industrial (1850), present (2020), and future (2100) climates. Compared to a pre-industrial state, both climate change simulations reveal increasing wave propagation and wave breaking in the stratosphere, accompanied by a higher occurrence of sudden stratospheric warmings (SSWs). This intensified wave activity enters the stratosphere particularly from the North Pacific and the Atlantic/European region. An evaluation of subseasonal wave activity episodes reveals more frequent tropopause-level wave input events during winter. While we found a significant rise in SSW events in our climate change simulations, their downward influence on mid-latitude winter weather appears to diminish, likely due to a warmer Arctic and the reduced severity of cold air outbreaks. Furthermore, we relate the changes in planetary wave generation to tropospheric baroclinicity, which is controlled by horizontal temperature gradients and static stability. Notably, AA suppresses baroclinic wave formation by weakening horizontal temperature gradients in the lower troposphere. In contrast, the enhanced wave generation in the mid-latitude upper troposphere could be attributed to temperature modifications at nearby altitudes, driven by tropical warming and lower-stratospheric cooling. Finally, considered in isolation, the polar jet was not found to weaken or become more wavy, as proposed by the AML hypothesis.
DOI: 10.17169/refubium-46925
title: Sedimentological data of three sediment cores from a backfilled Weser paleo-meander near Rinteln, Lower Saxony (Germany)
title: Sedimentologische Daten von drei Sedimentkernen aus einem verfüllten Weser-Paläomeander bei Rinteln, Niedersachsen (Deutschland)

description: We present sedimentological data from 3 sediment cores (RI 05, RI 12 and RI 13), which were obtained from a backfilled Weser paleo-meander near the town of Rinteln in Lower Saxony, Germany. The sediment cores were extracted during two field campaigns in April and August of 2023 using a petrol-driven Wacker hammer (BHF 30 S) with closed steel tubes equipped with PVC liners (5 cm diameter). In the Laboratory for Physical Geography of the Freie Universität Berlin the PVC liners were opened and extracted sediments were cleaned and documented. The presented sedimentological parameters include: raw data of elemental composition derived by a portable energy-dispersive X-ray fluorescence spectrometer (Thermo Scientific Niton XL3t, see Hoelzmann et al. 2017; https://doi.org/10.5194/gi-6-93-2017) and volume-specific magnetic susceptibility (frequency 0.46 kHz, with an MS2C core scanning sensor and an MS3 meter; Bartington Instruments), both measured on the split sediment cores. Raw measurements of grain size distributions were done using a Beckmann Coulter LS13320 with PIDS (six measurements per sample). Carbonates were dissolved using 17 % HCl and organic material was removed by applying 30 % H2O2 for several days in a 40 °C water bath. Prior to measuring, 0.5 g Na4P2O7 was added as an anti-coagulation agent, the samples were placed in an overhead shaker for 24 h and exposed to ultrasonic. Loss on Ignition was investigated following the procedure described by Dean (1974; https://doi.org/10.1306/74D729D2-2B21-11D7-8648000102C1865D) and calculated after Heiri et al. (2001; https://doi.org/10.1023/A:1008119611481). pH values and electric conductivity were determined on subsamples of 5 g in a solution of 12.5 ml bi-distilled water with the eco Testr pH2 and the HANNA DiST HI 98303. All subsamples were measured twice and the results averaged.
DOI: 10.17169/refubium-47085
title: Phylogenetic position and genetic diversity of three German Caryophyllaceae of responsibility for conservation – first insights

description: Germany has three species of high responsibility for conservation that belong to the closely related genera Spergula and Spergularia. A comprehensive sampling including all three species of responsibility from herbarium material and grown from seeds was used to do Sanger sequencing. Four different markers (ITS, trnKmatK, rpl16, trnL-trnF) were sequenced, phylogenetic and network approaches were used to identify closely lineages of the species of interest, infer monophyly of the species and establish first insights into the diversity of the species. Spergula morisonii is widely distributed in Germany and closely related to S. pentandra. The five samples have several haplo- and ribotypes, without a clear geographic pattern. Spergularia segetalis is one of the first branches of Spergularia and shows a clear isolation-by-distance pattern of diversity. Spergularia echinsoperma belongs to a group of European widespread species, but the included samples all share the same haplo- and ribotype. A population genetic study is needed to get a clear picture of the diversity of S. morisonii and Sp. echinosperma in Germany.
DOI: 10.17169/refubium-39210
title: Replication Data for: Formation of Apollo 16 impactites and the composition of late accreted material: Constraints from Os isotopes, highly siderophile elements and sulfur abundances.

description: The data set contains concentration data for highly siderophile elements (Ru, Rh, Pd, Re, Os, Ir, Pt, and Au) analyzed by isotope dilution inductively coupled plasma mass spectrometry. We analyzed 5 impact melt breccias sampled from the Cayley formation, during the Apollo 16 mission to the lunar highlands. All samples we allocated by NASA/JSC and analyzed in the Geochemistry Laboratories at Freie Universität Berlin, Germany.
DOI: 10.17169/refubium-39194
title: Replication Data for: The Diverse Planetary Ingassing/Outgassing Paths Produced over Billions of Years of Magmatic Activity

description: The C-H-O-N-S elements that constitute the outgassed atmosphere and exosphere have likely been delivered by chondritic materials to the Earth during planetary accretion and subsequently processed over billions of years of planetary differentiation. Although these elements are generally considered to be volatile, a large part of the accreted C-H-O-N-S on Earth must have been sequestered in the core and mantle, with the remaining part concentrated at the Earth’s surface (exosphere: atmosphere+ocean+crust). The likely reason for this is that, depending on the prevailing pressure (P), temperature (T) and oxidation state (oxygen fugacity, fO2) in the planet’s interior, the C-H-O-N-S elements can behave as siderophile, lithophile, refractory, magmatophile, or atmophile. It is not clear if these elements might be sequestered in the interiors of planets elsewhere, since the governing parameters of P-T-fO2 during the diverse magmatic processes controlling magmatic differentiation vary greatly over time and from planet to planet. The magma ocean outgassed the first atmosphere, which was probably also the largest in terms of mass, but its nature and composition remain poorly known. Meanwhile, a significant, but unknown, part of the accreted C-H-O-N-S elements was sequestered in the core. These will probably never be liberated into the atmosphere. A secondary atmosphere was then fuelled by volcanism, driven by mantle convection and most likely enhanced by plate tectonics. The Earth still has active volcanism, and the volume and volatile contents of its magma are closely linked to geodynamics. Earth’s volcanoes have long emitted relatively oxidized gases, in contrast to Mars and Mercury. Mantle oxidation state seems to increase with planetary size, although the role of plate tectonics in changing the Earth’s mantle oxidation state remains poorly understood. Water contents of magma from elsewhere in the solar system are not so different from those produced by the Earth’s depleted mantle. Other elements (e.g. N, S, C) are unevenly distributed. A great diversity of speciation and quantity of magmatic gas emitted is found in planetary systems, with the key inputs being: 1 – degassing of the magma ocean, 2 – mantle oxidation state (and its evolution), and 3 – plate tectonics (vs. other styles of mantle convection). Many other parameters can affect these three inputs, of which planetary size is probably one of the most important.
DOI: 10.17169/refubium-39202
title: Replication Data for: Synthesis of Large Amounts of Volatile Element-Bearing Silicate Glasses Using a Two-Stage Melting Process

description: The evaporation of volatile and moderately volatile elements from silicate glasses is an important topic in geosciences, environmental, and materials sciences. Glasses that contain volatile elements are used in a wide range of experimental studies, but the synthesis of volatile-bearing glasses at high temperatures as well as the choice of starting materials is challenging. Here, we present a new method for the synthesis of 15–20 g of moderately volatile- and volatile element-bearing boron-aluminosilicate glasses using a two-stage melting process. Results show that the glasses contain between 7000 and 10,000 μg/g Zn, Cu, or Te and ∼3000 μg/g S. In situ analyses with scanning electron microscopy and electron microprobe analysis confirm that all glasses are homogeneous for major and trace elements within the analytical uncertainties.
DOI: 10.17169/refubium-39185
title: Replication Data for: Late accretionary history of Earth and Moon preserved in lunar impactites.

description: Abstract: Late accretion describes the final addition of Earth’s mass following Moon formation and includes a period of Late Heavy Bombardment (LHB), which occurred either as a short-lived cataclysm triggered by a late giant planet orbital instability or a declining bombardment during late accretion. Using genetically characteristic ruthenium and molybdenum isotope compositions of lunar impact–derived rocks, we show that the impactors during the LHB and the entire period of late accretion were the same type of bodies and that they originated in the terrestrial planet region. Because a cataclysmic LHB would have, in part, resulted in compositionally distinct projectiles, we conclude that the LHB reflects the tail end of accretion. This implies that the giant planet orbital instability occurred during the main phase of planet formation. Last, because of their inner solar system origin, late-accreted bodies cannot be the primary source of Earth’s water.
DOI: 10.17169/refubium-39199
title: Replication Data for: Asteroid 2008 TC3, not a polymict ureilitic but a polymict C1 chondrite parent body? Survey of 249 Almahata Sitta fragments

description: On October 7, 2008, the asteroid 2008 TC3 exploded as it entered the Earth’s atmosphere, producing significant dust (in the atmosphere) and delivering thousands of stones in a strewn field in Sudan, collectively known as the Almahata Sitta (AhS) stones. About 600 fragments were officially recovered in 2008 and 2009. Further rocks were collected since the fall event by local people. From these stones, 249 were classified at the Institut für Planetologie in Münster (MS) known as MS-xxx or MS-MU-xxx AhS subsamples. Most of these rocks are ureilitic in origin (168; 67%): 87 coarse-grained ureilites, 60 fine-grained ureilites, 15 ureilites with variable texture/mineralogy, four trachyandesites, and two polymict breccias. We identified 81 non-ureilitic fragments, corresponding to 33% of the recovered samples studied in Münster. These included chondrites, namely 65 enstatite chondrites (43 EL; 22 EH), 11 ordinary chondrites (OC), one carbonaceous chondrite, and one unique R-like chondrite. Furthermore, three samples represent a unique type of enstatite achondrite. Since all AhS stones must be regarded as individual specimens independent from each other, the number of fresh ureilite and enstatite chondrite falls in our meteorite collections has been increased by several hundred percent. Overall, the samples weigh between &lt;1 and 250 g and have a mean mass of ~15 g. If we consider—almost 15 years after the fall—the mass calculations, observations during and after the asteroid entered the atmosphere, the mineralogy of the C1 stones AhS 91A and AhS 671, and the experimental work on fitting the asteroid spectrum (e.g., Goodrich et al., 2019; Jenniskens et al., 2010; Shaddad et al., 2010), the main portion of the meteoroid was likely made of the fine-grained (carbonaceous) dust and was mostly lost in the atmosphere. In particular, the fact that C1 materials were found has important implications for interpreting asteroid 2008 TC3's early spectroscopic results. Goodrich et al. (2019) correctly suggested that if scientists had not recovered the “water-free” samples (e.g., ureilites, enstatites, and OC) from the AhS strewn field, 2008 TC3 would have been assumed to be a carbonaceous chondrite meteoroid. Considering that the dominating mass of the exploding meteoroid consisted of carbonaceous materials, asteroid 2008 TC3 cannot be classified as a polymict ureilite; consequently, we state that the asteroid was a polymict carbonaceous chondrite breccia, specifically a polymict C1 object that may have formed by late accretion at least 50–100 Ma after calcium–aluminum-rich inclusions.
DOI: 10.17169/refubium-39214
title: Replication Data for: Nd isotope variation between the Earth–Moon system and enstatite chondrites

description: Abstract: Reconstructing the building blocks that made Earth and the Moon is critical to constrain their formation and compositional evolution to the present. Neodymium (Nd) isotopes identify these building blocks by fingerprinting nucleosynthetic components. In addition, the <sup>146</sup>Sm–<sup>142</sup>Nd and <sup>147</sup>Sm–<sup>143</sup>Nd decay systems, with half-lives of 103 million years and 108 billion years, respectively, track potential differences in their samarium (Sm)/Nd ratios. The difference in Earth’s present-day <sup>142</sup>Nd/<sup>144</sup>Nd ratio compared with chondrites (Burkhardt et al., Nature, 2016; Bouvier et al., Nature, 2016), and in particular enstatite chondrites, is interpreted as nucleosynthetic isotope variation in the protoplanetary disk. This necessitates that chondrite parent bodies have the same Sm/Nd ratio as Earth’s precursor materials (Bouvier et al., Nature, 2016). Here we show that Earth and the Moon instead had a Sm/Nd ratio approximately 2.4 ± 0.5 per cent higher than the average for chondrites and that the initial <sup>142</sup>Nd/<sup>144</sup>Nd ratio of Earth’s precursor materials is more similar to that of enstatite chondrites than previously proposed (Burkhardt et al., Nature, 2016; Bouvier et al., Nature, 2016). The difference in the Sm/Nd ratio between Earth and chondrites probably reflects the mineralogical distribution owing to mixing processes within the inner protoplanetary disk. This observation simplifies lunar differentiation to a single stage from formation to solidification of a lunar magma ocean (McLeod, et al., Earth Planet. Sci. Lett., 2014). This also indicates that no Sm/Nd fractionation occurred between the materials that made Earth and the Moon in the Moon-forming giant impact.
DOI: 10.17169/refubium-39200
title: Replication Data for: Ruthenium isotopic fractionation in primitive achondrites: Clues to the early stages of planetesimal melting

description: Primitive achondrites derive from the residual mantle of incompletely differentiated planetesimals, from which partial silicate and metallic melts were extracted. As such, primitive achondrites are uniquely useful to examine the early stages of planetesimal melting and differentiation. To better understand this early melting and melt segregation as well as the nature of the melts involved, we obtained mass-dependent Ru isotopic compositions of 17 primitive achondrites, including winonaites, acapulcoite-lodranites, ureilites, brachinites, and two ungrouped samples. Most primitive achondrites with subchondritic Ru concentrations are characterized by heavy Ru isotopic compositions relative to chondrites, likely reflecting the extraction of isotopically light partial metallic melts. While the segregation of early-formed partial Fe-Ni-S melts likely had no effect on the Ru isotope compositions, the subsequent extraction of S-free partial metallic melts at higher temperatures provides a viable mechanism for producing the observed Ru isotopic fractionation and fractionated highly siderophile element ratios among primitive achondrites. Together, these observations indicate that differentiation of primitive achondrite parent bodies involved the segregation of distinct partial metallic melts over a range of temperatures, and that these melts ultimately formed a partial core with fractionated and light Ru isotopic composition. This contrasts with the unfractionated Ru isotope signatures previously estimated for bulk iron meteorite cores, which therefore indicates quantitative metal segregation during core formation in the iron meteorite parent bodies. The less efficient metal segregation in primitive achondrite parent bodies most likely reflects lower initial amounts of heat-producing 26Al due to later accretion or impact disruption of the parent bodies during differentiation.
DOI: 10.17169/refubium-39209
title: Replication Data for: Nucleosynthetic zinc isotope anomalies reveal a dual origin of terrestrial volatiles

description: • Nucleosynthetic isotope anomalies for volatile element zinc. • Same nucleosynthetic NC-CC dichotomy as for non-volatile elements. • Terrestrial zinc mixture of ~70% NC and ~ 30% CC. • Same mixing proportions for hydrogen and nitrogen. • Terrestrial volatiles predominantly from inner and not outer Solar System.
DOI: 10.17169/refubium-40890
title: Replication Data for: Age and genetic relationships among CB, CH and CR chondrites

description: Hf-W, Mo, and Ti isotope as well as age data for: Age and genetic relationships among CB, CH and CR chondrites. Abstract: The carbonaceous Bencubbin-like (CB), high-metal (CH), and Renazzo-like (CR) chondrites are metal-rich chondrites that have been suggested to be genetically linked and are sometimes grouped together as the CR chondrite clan. Of these, the CB and CH chondrites are thought to have formed in an impact-generated vapor-melt plume from material that may be isotopically akin to CR chondrites. We report Mo, Ti, Cr, and Hf-W isotopic data for CB and CH chondrites in order to determine their formation time, to assess whether these chondrites are genetically related, and to evaluate their potential link to CR chondrites. An internal Hf-W isochron for the CH chondrite Acfer 182 yields an age of 3.8±1.2 Ma af¬ter formation of Ca-Al-rich inclusions, which is indistinguishable from the mean Hf-W model age for CB metal of 3.8±1.3 Ma. The Mo isotopic data for CB and CH chondrites indicate that both contain some of the same metal and silicate components, which themselves are isotopically distinct. As such, the different Mo isotopic compositions of bulk CB and CH chondrites reflect their distinct metal-to-silicate ratios. CR metal exhibits the same Mo isotopic composition as CB and CH metal, but CR silicates have distinct Mo and Ti isotopic compositions compared to CB and CH silicates, indicating that CB/CH chondrites may be genetically related to CR metal, but not to CR silicates. Together, the new isotopic data are consistent with formation of CB and CH chondrites in different regions of a common impact-generated vapor-melt plume and suggest that the CB and CH metal may derive from a metal-rich precursor genetically linked to CR chondrites. The Hf-W systematics of CH and CB chondrites indicate that the impact occurred at 3.8±0.8 Ma after the formation of Ca-Al-rich inclusions and, hence, up to ~1 Ma earlier than previously inferred based on Pb-Pb chronology.
DOI: 10.17169/refubium-46029
title: Coverages of HiRISE images by fan and blotch deposits

description: This dataset presents detailed coverage information derived from catalogs of CO₂ jet deposit features—fans and blotches—observed at the Martian South Pole. Generated using high-resolution HiRISE imagery from the Mars Reconnaissance Orbiter (MRO), the dataset quantifies the spatial extent and distribution of these seasonal deposits across multiple Martian years. The coverage data is crucial for understanding the dynamics of CO₂ sublimation and its interaction with surface and atmospheric processes. The coverage metrics were calculated from annotated features compiled through contributions from the citizen science project Planet Four and advanced clustering algorithms. Each dataset entry includes coverage percentages, and the tile and image identifiers. The data spans several key regions of interest, providing insights into Martian polar processes. This coverage dataset is a valuable resource for planetary scientists, climate modelers, and researchers focused on Martian seasonal dynamics and atmospheric coupling.
DOI: 10.60635/c3hp5c
title: Monthly summary_San Lorenzo Crane

description: San Lorenzo (Formerly know as Fort Sherman) Canopy Access Crane.Data Summaries, Excel spread sheet. Provides daily, monthly and yearly summaries. Contains interval averages, maximum, minimum and variability statistics, plus graphsParameters: air temperature, relative humidity, wind speed and direction,precipitation, solar radiation (pyranometer)Established in 1997, the San Lorenzo canopy crane (9.281031°, -79.974518°) is located approximately 11 km South West from the city of Colon, in the middle the Parque Natural San Lorenzo (formerly known as Fort Sherman) and is surrounded by 300-year old, low-land tropical rainforest.
DOI: 10.15468/dl.sze7pk
title: Occurrence Download

description: A dataset containing 3459 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Tirumala septentrionis (Butler, 1874)"
 ]
}

 The dataset includes 3459 records from 61 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020833-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17169/refubium-39154
title: Replication Data for: A New Tool to Account for Crater Obliteration Effects in Crater Size-Frequency Distribution Measurements

description: • Our new application applies crater measurement techniques to shapeﬁle geometries • The tool uses open software libraries and supports multicore and 64 bit data processing • Workarounds for geodesic measurements and polygon modiﬁcations were implemented
DOI: 10.17169/refubium-39218
title: Replication Data for: Constraining the presence of amphibole and mica in metasomatized mantle sources through halogen partitioning experiments.

description: • Fluorine and Cl partition coefficient for amphibole and mica • Melting model of metasomatized mantle sources • Halogen geochemical ratios of metasomatized mantle sources • Identification of hydrous phases in mantle sources
DOI: 10.17169/refubium-44785
title: Replication Data for: Experimental constraints on the origin of the lunar high-Ti basalts

description: The data contain Microprobe analytical information of experimental samples. The files contain EPMA methods, raw data, additional information, and all results published in 'related publication'. Piston cylinder experiments were conducted to produce high-Ti and low-Ti basalt compositions from the lunar sample compendium by melting hybrid lunar mantle compositions.