cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/kha-b6v-kzf
title: Vexillum vulpecula (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/f9h-h3e-f7l
title: Conus litteratus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/s69-2d6-a6j
title: Conus variegatus Kiener, 1848

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r9m-8d7-6zf
title: Conus ebraeus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cnr-z9y-qd3
title: Pyrgiscus rufus (R. A. Philippi, 1836)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/f8b-80k-vlj
title: Babylonia japonica (Reeve, 1842)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qmy-204-gna
title: Limacina lesueurii (A. d'Orbigny, 1836)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/yhv-46e-ql4
title: Fusiturricula enae Bartsch, 1934

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3x6-47f-9qh
title: Spiralina alpinoligustica (Sacco, 1892)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/sbv-rkb-a8t
title: Marginellidae J. Fleming, 1828

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rg5-rnl-8w3
title: Melampus parvulus L. Pfeiffer, 1856

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/8ql-sk7-xl8
title: Pitar Römer, 1857

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/aep-hxx-f0k
title: Cassidula aurisfelis (Bruguière, 1789)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/2vz-vbh-74q
title: Conus aplustre Reeve, 1843

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kma-929-g52
title: Galba truncatula (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k14-99l-l1j
title: Siphonariidae Gray, 1827

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/0yl-8ht-c2z
title: Mitridae Swainson, 1831

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/c87-agv-wvw
title: Granulina occulta (Monterosato, 1869)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/14x-0gk-ydy
title: Amalda mucronata (G. B. Sowerby I, 1830)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/x6w-y01-q33
title: Vexillum vulpecula (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ly9-hqg-rvr
title: Pyramidellidae J. E. Gray, 1840

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cns-5yc-wq3
title: Anachis fasciata (G. B. Sowerby I, 1825)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/sd6-1te-1qr
title: Conus muriculatus G. B. Sowerby I, 1833

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/5zz-a3g-s48
title: Bullata bullata (Born, 1778)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k7n-98x-ffs
title: Gibberula miliaria (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lz8-1pn-mdj
title: Ancilla albisulcata (G. B. Sowerby I, 1830)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/7ll-tak-hsh
title: Domiporta filaris (Linnaeus, 1771)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/zq3-7ks-nme
title: Dentimargo neglecta (G. B. Sowerby II, 1846)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/n4d-x5l-kh3
title: Agaronia testacea (Lamarck, 1811)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/7vx-e32-4pb
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gfd-njy-3lw
title: Strigatella luctuosa (A. Adams, 1853)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ss8-cy0-2j5
title: Conus archiepiscopus Hwass, 1792

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/580-j5t-8wr
title: Conus textile Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/adk-5y2-1m4
title: Conus musicus Hwass, 1792

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rjh-l24-lcf
title: Lophiotoma acuta (Perry, 1811)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/a2k-v65-z4m
title: Pyramidellidae J. E. Gray, 1840

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/veb-xjj-cjc
title: Ampullaceana balthica (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3ls-l9w-a3p
title: Conus furvus Reeve, 1843

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/dmc-ma1-n2l
title: Eulimella ventricosa (Forbes, 1844)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/092-vsz-8bn
title: Conus omaria Hwass, 1792

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/054-d9f-w7t
title: Conasprella puncticulata (Hwass, 1792)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/73d-0dm-xgf
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/397-j9z-5bm
title: Mytilus edulis Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gz7-fln-kcg
title: Odostomella doliolum (R. A. Philippi, 1844)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ekl-c9a-lwk
title: Harpulina lapponica (Linnaeus, 1767)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/yjk-3dy-lph
title: Siphonaria lateralis A. Gould, 1846

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k1m-yrq-2t3
title: Marginellidae J. Fleming, 1828

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t6z-2sl-spy
title: Oliva oliva (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/v66-nfp-2x6
title: Prunum labrosum (Redfield, 1870)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/a6p-anw-4t8
title: Melo amphora ([Lightfoot, 1786])

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ce8-1hf-qfs
title: Tritia neritea (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/d58-v54-3j4
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/jw3-3zc-ts8
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/59g-3a4-edm
title: Anachis terpsichore (G. B. Sowerby I, 1822)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/80p-jw1-q6q
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/dn5-jeg-0a8
title: Ampullaceana balthica (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qal-ya3-8gj
title: Scaphander lignarius (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/jls-7va-5l5
title: Conus coronatus Gmelin, 1791

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/de7-wr0-6t5
title: Turrilatirus turritus (Gmelin, 1791)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/h0r-905-v6g
title: Oliva reticulata (Röding, 1798)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3jd-4v3-6f7
title: Akera bullata O. F. Müller, 1776

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/x6p-s09-gf0
title: Conus litteratus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/5y8-h0x-xmd
title: Koloonella ignorabilis (Peñas & Rolán, 1997)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/7v3-ksn-32s
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/31j-91d-lpq
title: Ocenebra edwardsii (Payraudeau, 1826)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t0j-ta2-tzn
title: Crassispira affinis (Reeve, 1846)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9ze-698-chw
title: Mitridae Swainson, 1831

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lyr-3dh-tjj
title: Buccinanops cochlidium (Dillwyn, 1817)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/q19-dhc-0qq
title: Oliva bulbosa (Röding, 1798)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/78e-dmm-jy7
title: Costellariidae MacDonald, 1860

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/x12-nse-n98
title: Auriculastra subula (Quoy & Gaimard, 1832)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bwt-6xl-wj3
title: Melampus semiplicatus Pease, 1860

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/mcg-xjb-x7s
title: Planorbis carinatus O. F. Müller, 1774

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/1wj-jhf-9ya
title: Odostomia J. Fleming, 1813

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qzz-v0w-23q
title: Gastropoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/77k-gf4-qzc
title: Conus retifer Menke, 1829

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pr0-992-vz7
title: Ondina de Folin, 1870

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/944-4l7-w6m
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tz7-v59-zq9
title: Conus bandanus Hwass, 1792

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3h1-4hm-vky
title: Lophiotoma abbreviata (Reeve, 1843)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qvn-x66-c7r
title: Aptyxis syracusana (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/q6t-zq1-rvj
title: Harpulina lapponica (Linnaeus, 1767)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r0v-tnb-2bk
title: Marginellidae J. Fleming, 1828

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9as-7wd-f72
title: Cymbiola nivosa (Lamarck, 1804)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/f0y-c38-jb9
title: Radix auricularia (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tls-v7e-f7x
title: Radix ampla (W. Hartmann, 1821)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/npq-2qe-ka3
title: Siphonaria pectinata (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pl9-naz-lt1
title: Costellariidae MacDonald, 1860

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/fd5-177-689
title: Melampus fasciatus (Deshayes, 1830)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/jlb-86t-cwd
title: Williamia gussoni (O. G. Costa, 1829)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9n7-apc-k4s
title: Terebridae Mörch, 1852

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kg1-k4d-w3f
title: Tectura virginea (O. F. Müller, 1776)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ces-2ft-nhd
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r5h-3h5-z2h
title: Bulla Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/8vk-ghk-ekc
title: Conus ermineus Born, 1778

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/m61-7cr-edm
title: Bullidae Gray, 1827

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/w0l-7nt-10t
title: Nassarius papillosus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/etf-rxn-gcc
title: Cymbiola rutila (Broderip, 1826)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3z9-dhs-0aq
title: Costellariidae MacDonald, 1860

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tzg-qnp-zyj
title: Tralia ovula (Bruguière, 1789)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gbz-0ns-mkc
title: Nebularia ferruginea (Lamarck, 1811)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kdc-f7a-0sn
title: Conus textile Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/07n-dwm-pt8
title: Conus tessulatus Born, 1778

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.astbzb
title: Occurrence Download

description: A dataset containing 1810 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is United States of America",
 "DatasetKey is one of (iNaturalist Research-grade Observations, MVZ Mammal Collection (Arctos))",
 "GadmGid is USA.5_1",
 "TaxonKey is Castor canadensis",
 "Year 1814-2025"
 ]
}

 The dataset includes 1810 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006219-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/er8-78w-32k
title: Pitar tumens (Gmelin, 1791)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/hw0-rds-sdy
title: Pleurotomella A. E. Verrill, 1872

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/8jl-qwb-v84
title: Conus quercinus [Lightfoot], 1786

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tkg-5f0-zhz
title: Conus ventricosus Gmelin, 1791

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/24x-j1h-6kc
title: Cylichnidae H. Adams & A. Adams, 1854

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/p5w-5vj-c90
title: Pyramidellidae J. E. Gray, 1840

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9by-fwk-zz3
title: Melo melo ([Lightfoot], 1786)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xc0-04w-7c5
title: Fulgoraria megaspira (G. B. Sowerby I, 1844)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qt1-lte-dw2
title: Tralia ovula (Bruguière, 1789)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tk3-hye-1qg
title: Leucozonia nassa (Gmelin, 1791)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/b77-tag-zc2
title: Florivasum tubiferum (Anton, 1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/nqz-cjc-xgc
title: Melo broderipii (Gray, 1833)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qs0-afd-vmk
title: Ziba carinata (Swainson, 1824)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/dp7-3f3-k1s
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/0dg-6ww-sn3
title: Marginellidae J. Fleming, 1828

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/by2-9k0-664
title: Crassispira sinensis (Hinds, 1843)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/7fh-avl-mg2
title: Vitreolina philippi (de Rayneval & Ponzi, 1854)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.6084/m9.figshare.27323106
title: 100-m resolution Age-Stratified Population Estimation from the 2020 China Census by Township (ASPECT)

description: <b>Introduction</b>: Gridded population datasets are instrumental for modeling the interactions between human and the environment at fine spatial scales. Here, we introduce an Age-Stratified Population Estimation from the 2020 China Census by Township (ASPECT), estimating total population and population by age groups (0-14, 15-59, 60-64, ≥65 years old) at 100m spatial resolution as of year 2020. We used a dasymetric mapping approach to downscale township-level population data (n=40,718 townships) from the 2020 China Census to 100 by 100 m grid cells. The study area is <b>mainland China</b>.<b>Data records</b>: ASPECT includes GEOTIFF files on <b>population dens</b><b>ity</b><b> (persons per hectare) </b>at 100 m spatial resolution. No data areas indicate townships missing the 2020 Census data (n=590) and areas fall outside our study area, mainland China. The files are:population_total_pop: gridded estimates on total populationpopulation_age0_14: gridded estimates on population between 0 and 14 years oldpopulation_age15_59: gridded estimates on population between 15 and 59 years oldpopulation_age60_64: gridded estimates on population between 60 and 64 years oldpopulation_age65above: gridded estimates on population ≥65 years oldpopulation_total_pop_sum: gridded estimates on total population, summed with age-group specific estimates (file 2-5). This file is used to calculate the proportion of each age group.ASPECT also includes GEOTIFF files on <b>the proportion (%) of population by age groups</b> at 100 m spatial resolution. No data areas indicate townships missing the 2020 Census data, places fell outside our study area, and places with zero population. Proportion of a population age group is calculated by dividing its population counts by the sum of population from all age groups (i.e., grid cell values from the “population_total_pop_sum.zip” file). The files are:proportion_age0_14: the proportion of population between 0 and 14 years oldproportion_age15_59: the proportion of population between 15 and 59 years oldproportion_age60_64: the proportion of population between 60 and 64 years oldproportion_age65above: the proportion of population ≥65 years oldAll GEOTIFF files are projected with WGS 1984 geographic coordinate system (EPSG: 4326). The files are compressed in zip format. Once uncompressed, the GEOTIFF files can processed by GIS software such as ArcGIS, and by programing language packages such as Rasterio in Python.<b>Reference</b>: 100-m resolution Age-Stratified Population Estimation from the 2020 China Census by Township (ASPECT), published by Scientific Data [link]<b>Citation</b>: Ju, Y., Liang, Y., Kong, J., Wang, X., Wen, S., Shang, H., & Wang, X. (2025). 100-m resolution Age-Stratified Population Estimation from the 2020 China Census by Township (ASPECT). <i>Scientific Data</i>, <i>12</i>(1), 1058. https://doi.org/10.1038/s41597-025-05401-1