cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/n087-xq64
title: NOAA/WDS Paleoclimatology - Pluto Lake, Greenland 9,500 Year Biomarker and Deuterium Data

description: Arctic precipitation is predicted to increase this century. Records of past precipitation seasonality provide baselines for a mechanistic understanding of the dynamics controlling Arctic precipitation. We present an approach to reconstruct Arctic precipitation seasonality using stable hydrogen isotopes (δ2H) of aquatic plant waxes in neighboring lakes with contrasting water residence times and present a case study of this approach in two lakes on western Greenland. Residence time calculations suggest that growing season lake water δ2H in one lake reflects summer precipitation δ2H, while the other reflects amount-weighted annual precipitation δ2H and evaporative enrichment. Aquatic plant wax δ2H in the “summer lake” is relatively constant throughout the Holocene, perhaps reflecting competing effects of local summer warmth and increased distal moisture transport due to a strengthened latitudinal temperature gradient. In contrast, aquatic plant wax δ2H in the “mean annual lake” is 100‰ 2H depleted from 6 to 4 ka relative to the beginning and end of the record. Because there are relatively minor changes in summer precipitation δ2H, we interpret the 100‰ 2H depletion in mean annual precipitation to reflect an increase in winter precipitation amount, likely accompanied by changes in winter precipitation δ2H and decreased evaporative enrichment. Thus, unlike the “summer lake,” the “mean annual lake” records changes in winter precipitation. This dual-lake approach may be applied to reconstruct past changes in precipitation seasonality at sites with strong precipitation isotope seasonality and minimal lake water evaporative enrichment.
description: Leaf wax concentration and deuterium data from Holocene sediments collected in Pluto Lake, Greenland
DOI: 10.25921/nab7-ff56
title: NOAA/WDS Paleoclimatology - Lloyd - Indylyun River - PCOB - ITRDB RUSS205

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: Site was at the confluence of the Indylyun River 
# and the Lena River.  This is a very old stand of 
# mixed Larix cajanderi and Picea obovata, with 
# minimal evidence of human disturbance.  An old 
# survey tower is near the site.  This file contains 
# all of the measured trees.  Trees have been 
# crossdated, but some cores contain persistent problems 
# that were not resolved.  We advise users to examine 
# COFECHA output prior to use-- for climatological 
# studies, users will probably want to eliminate 
# a few cores with persistent problems. 
#  NOAA Template Raw Measurements file added 2019-04-08.
DOI: 10.25921/nt0a-dv08
title: NOAA/WDS Paleoclimatology - Büntgen - DolinaChoch - ABAL - ITRDB POLA024

description: We analyzed growth responses to climate of 24 tree-ring width and four maximum latewood density chronologies from the greater Tatra region in Poland and Slovakia. This network comprises 1183 ring-width and 153 density measurement series from four conifer species (Picea abies (L.) Karst., Larix decidua Mill., Abies alba (L.) Karst., and Pinus mugo (L.)) between 800 and 1550 m a.s.l. Individual spline detrending was used to retain annual to multi-decadal scale climate information in the data. Twentieth century temperature and precipitation data from 16 grid-boxes covering the 48-50 °N and 19-21 °E region were used for comparison. The network was analyzed to assess growth responses to climate as a function of species, elevation, parameter, frequency and site ecology. Twenty ring-width chronologies significantly correlated (P < 0.05) with June-July temperatures, whereas the latewood density chronologies were correlated with the April-September temperatures. Climatic effects of the previous-year summer generally did not significantly influence ring formation, whereas site elevation and frequency of growth variations (i.e., inter-annual and decadal) were significant variables in explaining growth response to climate. Response to precipitation increased with decreasing elevation. Correlations between summer temperatures and annual growth rates were lower for Larix decidua than for Picea abies. Principal component analysis identified five dominant eigenvectors that express somewhat contrasting climatic signals. The first principal component contained highest loadings from 11 Picea abies ring-width chronologies and one Pinus mugo ring-width chronology and explained 42% of the network's variance. The mean of these 12 high-elevation chronologies was significantly correlated at 0.62 with June-July temperatures, whereas the mean of three latewood density chronologies, which loaded most strongly on the fourth principal component, significantly correlated at 0.69 with April-September temperatures (P < 0.001 over the 1901-2002 period in both cases). These groupings allow for a robust estimation of June-July (1661-2004) and April-September (1709-2004) temperatures, respectively. Comparison with reconstructions from the Alps and Central Europe supports the general rule of the dominant influence of growing season temperature on high-elevation forest growth.
description: NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.5281/zenodo.17353921
title: A Methodology for Generating Mobile Applications Through Large Language Models

description: This repository contains the supplementary materials for our paper, titled "A Methodology for Generating Mobile Applications Through Large Language Models". In this work, we present and validate a platform-independent method for generating and evaluating complete mobile applications from high-level natural language descriptions. Our approach utilizes a multi-agent Large Language Model (LLM) framework to manage a three-stage process: App Description Generation, Code Generation, and Evaluation.

 





📂 Repository Structure


This repository is organized into three main directories, corresponding to the stages of our methodology:



├── 1.app-description/        # Natural language app descriptions
│   ├── boobie-goods.txt
│   ├── duolingo.txt
│   └── threads.txt
├── 2.app-generation/         # Generated mobile applications
│   ├── boobie-goods.zip
│   ├── duolingo.zip
│   └── threads.zip
├── 3.evaluation/             # Research evaluation materials
│   ├── boobie-goods.pdf
│   ├── duolingo.pdf
│   ├── threads.pdf
│   └── legend.png
└── README.md                 # This file


 






📝 How to Use This Repository




1. App Description


The 1.app-description/ directory contains the detailed mobile app specification documents generated by the "product manager" LLM agent. These .txt files served as the blueprint for the code generation phase. Each file includes:



App purpose: The main objective of the application.

Detailed Feature List: A comprehensive list of functionalities.

Layout and components: A description of the app's screens and UI elements.

User interaction flow: A complete map of possible user journeys within the app.




2. App Generation


The 2.app-generation/ directory contains the complete source code for the three mobile applications generated by our methodology. The applications were developed using the Flutter framework.

To use these files:



Unzip the desired application file (e.g., unzip boobie-goods.zip).

Navigate into the project directory.

Follow the standard procedure to build and run a Flutter application.




3. Evaluation


The 3.evaluation/ directory contains the reports from our code quality assessment, which was performed using SonarQube. Each PDF file provides a detailed static analysis of the generated source code, focusing on:



Reliability (Bugs)

Security (Vulnerabilities)

Maintainability (Code Smells)

Duplications

Complexity


The legend.png file provides a key to understanding the ratings and metrics used in the SonarQube reports.
DOI: 10.25921/n75k-pb92
title: NOAA/WDS Paleoclimatology - Searles Valley, Brillouin thermometry, latest Pleistocene and Holocene

description: Paleoclimate records from lakes of the southwestern USA have been limited by a lack of independent paleothermometers, resulting in conflicting characterizations of millennial-scale variability in temperature and moisture. Here a novel method called Brillouin thermometry is applied to halite-bearing dry intervals of the late Pleistocene/Holocene (45–0 ka) core record of Searles Lake, California. Temperatures during muddy wetter intervals are available from branched glycerol dialkyl glycerol tetraethers (brGDGTs). Halite from the sediment-water interface records lake bottom temperatures during dry, high salinity periods. Analysis of modern saline lakes of various chemistries, depths, climate zones, and mixing regimes shows that: 1) average bottom water temperature is approximately equal to mean annual air temperature, and 2) annual range of bottom water temperature is inversely proportional to lake depth. Brillouin temperatures for eight halite intervals 30.6 ka to 8.5 ka range from 11.8 ± 3.6 to 22.4 ± 3.2 °C. Bottom water temperature variability indicates paleolake depths of ~10 m during halite precipitation. Temperatures from brGDGTs for mud intervals 44.7 ka to 3.6 ka range from 13.4 ± 2.8 to 23.9 ± 3.0 °C. Comparisons of Brillouin temperatures with predicted equilibrium temperatures of salt crystallization shed light on seasonal processes of evaporite deposition and diagenesis. The multiproxy temperature record of Searles Lake agrees with other regional records at glacial/interglacial timescales but displays a wider degree of millennial-scale variability, with temperatures during the last glacial ranging from 8.3 °C below modern mean annual temperatures to 3.8 °C above.
description: Provided Keywords: Brillouin thermometry, fluid inclusions, evaporites, Searles Lake
DOI: 10.15468/dl.atb2n5
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Tinamiformes)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((-170 50,-160 50,-160 60,-170 60,-170 50))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0021172-251009101135966/datasets/export for details.
DOI: 10.25921/nkgq-rg03
title: NOAA/WDS Paleoclimatology - Pederson - Mohonk Preserve - QUVE - ITRDB NY026

description: Six water emergencies have occurred since 1981 for the New York City region (NYC) despite: 1) its perhumid climate, 2) substantial conservation of water since 1979 and 3) meteorological data showing little severe or extreme drought since 1970. We reconstruct 472 years of moisture availability for the NYC watershed to place these emergencies in long-term hydroclimatic context. Using nested reconstruction techniques, 32 tree-ring chronologies comprised of 12 species account for up to 66.2% of the average May-August Palmer Drought Severity Index. Verification statistics indicate good statistical skill from 1531-2003. The use of multiple tree species, including rarely-used species that can sometimes occur on mesic sites like Liriodendron tulipifera, Betula lenta and Carya spp., seems to aid reconstruction skill. Importantly, the reconstruction captures pluvial events in the instrumental record nearly as well as drought events and is significantly correlated to precipitation over much of the northeastern US. While the mid-1960s drought is a severe drought in the context of the new reconstruction, the region experienced repeated droughts of similar intensity, but greater duration during the 16th and 17th centuries. The full record reveals a trend towards more pluvial conditions since ca 1800 that is accentuated by an unprecedented, 43-year pluvial event that continues through 2011. In the context of the current pluvial, decreasing water usage, but increasing extra-urban pressures, it appears that the water supply system for the greater NYC region could be severely stressed if the current water boom shifts towards hydroclimatic regimes like the 16th and 17th centuries.
description: NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/ne1j-mg89
title: NOAA/WDS Paleoclimatology - European 1400 Year Spring-Summer Temperature Reconstructions

description: Background: The lack of instrumental data before the mid-19th-century limits our understanding of present warming trends. In the absence of direct measurements, we used proxies that are natural or historical archives recording past climatic changes. A gridded reconstruction of spring-summer temperature was produced for Europe based on tree-rings, documentaries, pollen assemblages and ice cores. The majority of proxy series have an annual resolution. For a better inference of long-term climate variation, they were completed by low-resolution data (decadal or more), mostly on pollen and ice-core data.

Methodology/Principal Findings: An original spectral analog method was devised to deal with this heterogeneous dataset, and to preserve long-term variations and the variability of temperature series. So we can replace the recent climate changes in a broader context of the past 1400 years. This preservation is possible because the method is not based on a calibration (regression) but on similarities between assemblages of proxies. The reconstruction of the April-September temperatures was validated with a Jack-knife technique. It was also compared to other spatially gridded temperature reconstructions, literature data, and glacier advance and retreat curves. We also attempted to relate the spatial distribution of European temperature anomalies to known solar and volcanic forcings. 
 
Conclusions: We found that our results were accurate back to 750. Cold periods prior to the 20th century can be explained partly by low solar activity and/or high volcanic activity. The Medieval Warm Period (MWP) could be correlated to higher solar activity. During the 20th century, however only anthropogenic forcing can explain the exceptionally high temperature rise. Warm periods of the Middle Age were spatially more heterogeneous than last decades, and then locally it could have been warmer. However, at the continental scale, the last decades were clearly warmer than any period of the last 1400 years. The heterogeneity of MWP versus the homogeneity of the last decades is likely an argument that different forcings could have operated. These results support the fact that we are living a climate change in Europe never seen in the past 1400 years.
description: Gridded April-September multiproxy European temperature reconstructions 
for the last 1400 years.  An original spectral analog method was used
with 117 proxy records, including tree-rings, documentaries, pollen 
assemblages, and ice cores.  Grid size 5°x5°, spatial extent from 
27.5°N to 72.5°N and from 7.5°W to 57.5°E.  Data are °C anomalies 
relative to the 1961–1990 average. 

ESCARSEL (Secular Evolution of Climate in the circum-Atlantic regions
and Response of eco-lacustrine systems) members are: 
S. Brewer, F. Chalié, V. Daux, J.L. Edouard, O. Girardclos, F. Guibal, 
G. Lambert, V. Masson-Delmotte, G. Pichard, J. Servonnat, D. Swingedouw, 
A. Thomas, and P. Yiou.
DOI: 10.25921/nve7-1816
title: NOAA/WDS Paleoclimatology - Taylor fire data from Northern California - IMPD USNC_001

description: Despite a strong anthropogenic fingerprint on 20th Century wildland fire activity in the American West, climate remains a main driver. A better understanding of the spatiotemporal variability in fire-climate interactions is therefore crucial for fire management. Here, we present annually resolved, tree-ring based fire records for four regions in the American West that extend back to 1400 CE. In all regions, years with high fire activity were characterized by widespread yet regionally distinct summer droughts. Overall fire activity was high in late Medieval times, when much of the American West was affected by mega-droughts. A distinct decline in fire activity in the late 16th Century corresponds with anomalously low temperatures during the Little Ice Age and a decline in Native American fire use. The high spatiotemporal resolution of our fire record discloses a time-frequency dependent climatic influence on wildfire regimes in the American West that needs to be accounted for in fire models.
description: These fire-scar records were provided via a USDI/USDA 
Interagency Joint Fire Sciences Program database project (Taylor, 
A. H., C. N. Skinner, A. M. Carleton, and S. L. Stephens. 2007.
Fire climate interactions and predicting fire season severity in the
Mediterranean climate areas of California, southern Oregon, and western
Nevada. Rep. 03-1-1-22. Joint Fire Sci. Program, Boise, Idaho.). Fire 
scar-records were selected from individual trees that were recording 
fire prior to the year 1500. These records were compiled from data 
from the following original sites:
Site Name, Latitude (degrees N), Longitude (degrees W), Principal Investigator
Adin Pass,41.34,120.99,Skinner
Bluff Lake,41.34,122.55,Skinner
Cedar Basin,41.22,122.49,Skinner
Coggins Saddle,42.15,122.69,Skinner
Crater Creek,41.38,122.58,Skinner
Dog Valley,39.59,120.03,Taylor
El Capitan,37.73,119.76,Taylor
Goosenest,41.53,121.85,Skinner
Grayback,42.14,123.45,Skinner
Hayfork,40.5,123.2,Taylor
Lake Tahoe Basin,39.05,119.93,Taylor
Prospect Peak,42.56,121.69,Taylor
Stampede Reservoir,39.45,120.13,Taylor
DOI: 10.25921/nze2-x612
title: NOAA/WDS Paleoclimatology - Knight - Greenwood Plantation - PIPA - ITRDB GA015

description: The depth of the 2006-9 drought in the humid, southeastern US left several metropolitan areas with only a 60-120 day water supply. To put the region's recent drought variability in a long-term perspective, a dense and diverse tree-ring network-including the first records throughout the Apalachicola-Chattahoochee-Flint river basin - is used to reconstruct drought from 1665 to 2010 CE. The network accounts for up to 58.1% of the annual variance in warm-season drought during the 20th century and captures wet eras during the middle to late 20th century. The reconstruction shows that the recent droughts are not unprecedented over the last 346 years. Indeed, droughts of extended duration occurred more frequently between 1696 and 1820. Our results indicate that the era in which local and state water supply decisions were developed and the period of instrumental data upon which it is based are amongst the wettest since at least 1665. Given continued growth and subsequent industrial, agricultural and metropolitan demand throughout the southeast, insights from paleohydroclimate records suggest that the threat of water-related conflict in the region has potential to grow more intense in the decades to come.
description:  NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/nh9g-zg26
title: NOAA/WDS Paleoclimatology - New Zealand South Island 30KYr Speleothem Stable Isotope Data

description: The occurrence of speleothems in New Zealand with reversed magnetism indicates that secondary calcite deposition in caves has occurred for more than 780 thousand years (ka). 394 uranium-series dates on 148 speleothems show that such deposition has taken place somewhere in the country with little interruption for more than 500 ka. A relative probability distribution of speleothem ages indicates that most growth occurred in mild, moist interglacial and interstadial intervals, a conclusion reinforced by comparing peaks and troughs in the distribution with time series curves of speleothem d18O and d13C values. The stable isotope time series were constructed using data from 15 speleothems from two different regions of the country. The greater the number of overlapping speleothem series (i.e. the greater the sample depth) for any one region, the more confidence is justified in considering the stacked record to be representative of the region.  Revising and extending earlier work, composite records are produced for central-west North Island (CWNI) and north-west South Island (NWSI). Both demonstrate that over the last 15 ka the regions responded similarly to global climatic events, but that the North Island site was also influenced by the waxing and waning of regional subtropical marine influences that penetrated from the north but did not reach the higher latitudes of the South Island. Cooling marking the commencement of the last glacial maximum (LGM) was evident from about 28 ka. There was a mid-LGM interstadial at 23-21.7 ka and Termination 1 occurred around 18.1 ka. The glacial-interglacial transition was marked by a series of negative excursions in d18O that coincide with dated recessional moraines in South Island glaciers. A late glacial cooling event, the NZ Late Glacial Reversal, occurred from 13.4-11.2 ka and this was followed by an early Holocene optimum at 10.8 ka. Comparison of d18O records from NWSI and EPICA DML ice-core shows climatic events in New Zealand to lag those in Antarctica by several centuries to a thousand years. Waxing and waning of subantarctic and subtropical oceanic influences in the Tasman Sea are considered the immediate drivers of palaeoclimatic change.
description: Composite speleothem d18O and d13C data for north-west South Island, 
New Zealand. d18O data are ice volume corrected (ivc) assuming 
1.2 per mil correction at 20 ka.  The original data were published 
in Williams et al. (2005) and were based on 8 speleothems with 
43 TIMS dates. The new record is constructed from the same 8 
speleothems but has 56 dates and 641 stable isotope data points, 
and extends from 500 - 30 000 years BP.	 

Northwest South Island ~42°S, 172°E.