corpus.blog
41554 blogs · [ { "id": "01a0876c-3d19-7382-9c2b-2c2f3c1d3e1c", "title": "Wrangling and joining 130M points...in 2026", "url": "https://dewey.dunnington.ca/post/2026/wrangling-and-joining-130m-points...in-2026/", "published_at": "2026-04-24T04:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f3c43d361", "title": "Day 24: The Mud Lakes of Nova Scotia", "url": "https://dewey.dunnington.ca/post/2025/day-24-the-mud-lakes-of-nova-scotia/", "published_at": "2025-11-23T04:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f3cb87cff", "title": "Day 6: Dimensions", "url": "https://dewey.dunnington.ca/post/2025/day-6-dimensions/", "published_at": "2025-11-06T04:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f3cec76fd", "title": "Day 5: Earth", "url": "https://dewey.dunnington.ca/post/2025/day-5-earth/", "published_at": "2025-11-05T04:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f3de828d0", "title": "Day 2: Lines", "url": "https://dewey.dunnington.ca/post/2025/day-2-lines/", "published_at": "2025-11-02T04:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f3ed3d534", "title": "Day 1: Points", "url": "https://dewey.dunnington.ca/post/2025/day-1-points/", "published_at": "2025-11-01T04:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f3f83c5f0", "title": "Lazy GeoParquet reading in SedonaDB, DuckDB, GeoPandas, and GDAL", "url": "https://dewey.dunnington.ca/post/2025/lazy-geoparquet-reading-in-sedonadb-duckdb-geopandas-and-gdal/", "published_at": "2025-10-16T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f406e387c", "title": "(Geo)Data cleaning with Arrow and SedonaDB", "url": "https://dewey.dunnington.ca/post/2025/geodata-cleaning-with-arrow-and-sedonadb/", "published_at": "2025-10-06T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f41416efe", "title": "Stream network traversal with SedonaDB", "url": "https://dewey.dunnington.ca/post/2025/stream-network-traversal-with-sedonadb/", "published_at": "2025-09-26T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f41d8f3b0", "title": "Apache...Sedona, you say?", "url": "https://dewey.dunnington.ca/post/2025/apache...sedona-you-say/", "published_at": "2025-01-08T16:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f421b4fe9", "title": "Partitioning strategies for bigger-than-memory spatial data", "url": "https://dewey.dunnington.ca/post/2024/partitioning-strategies-for-bigger-than-memory-spatial-data/", "published_at": "2024-12-02T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f426d337c", "title": "Wrangling and joining 130M points with DuckDB + the open source spatial stack", "url": "https://dewey.dunnington.ca/post/2024/wrangling-and-joining-130m-points-with-duckdb--the-open-source-spatial-stack/", "published_at": "2024-12-02T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4291ed73", "title": "GDAL 3.6, ADBC, nanoarrow, and the humble ArrowArrayStream", "url": "https://dewey.dunnington.ca/post/2022/gdal-3.6-adbc-nanoarrow-and-the-humble-arrowarraystream/", "published_at": "2022-11-10T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4298f6cb", "title": "wk version 0.7.0!", "url": "https://dewey.dunnington.ca/post/2022/wk-version-0.7.0/", "published_at": "2022-10-13T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f435ffe08", "title": "Profiling point representations in GeoArrow", "url": "https://dewey.dunnington.ca/post/2022/profiling-point-representations-in-geoarrow/", "published_at": "2022-09-21T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f43b73609", "title": "geos version 0.2", "url": "https://dewey.dunnington.ca/post/2022/geos-version-0.2/", "published_at": "2022-08-28T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f44271767", "title": "s2 version 1.1.0", "url": "https://dewey.dunnington.ca/post/2022/s2-version-1.1.0/", "published_at": "2022-07-18T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f44e59799", "title": "Building Bridges: Arrow, Parquet, and Geospatial Computing", "url": "https://dewey.dunnington.ca/post/2022/building-bridges-arrow-parquet-and-geospatial-computing/", "published_at": "2022-05-18T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f455381a6", "title": "Profiling point-in-polygon joins in R", "url": "https://dewey.dunnington.ca/post/2022/profiling-point-in-polygon-joins-in-r/", "published_at": "2022-03-12T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f462c9fa8", "title": "wk version 0.6.0!", "url": "https://dewey.dunnington.ca/post/2021/wk-version-0.6.0/", "published_at": "2021-12-24T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f46772c7e", "title": "argodata: An R interface to oceanographic data from the International Argo Program", "url": "https://dewey.dunnington.ca/publication/dunnington_etal21/", "published_at": "2021-12-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f46a4dfad", "title": "Application of the paleolimnological method to assess metal contaminant distribution (As, Cu, Pb, Zn) in pulp mill stabilization basin sediments, Nova Scotia, Canada", "url": "https://dewey.dunnington.ca/publication/davidson_etal21/", "published_at": "2021-10-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f479e8e4a", "title": "Evaluating the multidecadal response of historic seawater incursion events and salinity-induced meromixis at Laytons Lake, Nova Scotia, Canada", "url": "https://dewey.dunnington.ca/publication/mcguire_etal21/", "published_at": "2021-10-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4846def5", "title": "Prototyping an Apache Arrow representation of geometry", "url": "https://dewey.dunnington.ca/post/2021/prototyping-an-apache-arrow-representation-of-geometry/", "published_at": "2021-09-14T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f48d61a42", "title": "wk version 0.5.0!", "url": "https://dewey.dunnington.ca/post/2021/wk-version-0.5.0/", "published_at": "2021-07-13T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f492719f0", "title": "Relative importance of organic- and iron-based colloids in six Nova Scotian lakes", "url": "https://dewey.dunnington.ca/publication/anderson_etal21/", "published_at": "2021-04-04T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f49bbb690", "title": "Stream networks using R and GEOS", "url": "https://dewey.dunnington.ca/post/2021/stream-networks-using-r-and-geos/", "published_at": "2021-04-02T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f49d6a10a", "title": "wk version 0.4.0!", "url": "https://dewey.dunnington.ca/post/2021/wk-version-0.4.0/", "published_at": "2021-03-03T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4a5418d6", "title": "Using R's cross-platform iconv wrapper from cpp11", "url": "https://dewey.dunnington.ca/post/2021/using-rs-cross-platform-iconv-wrapper-from-cpp11/", "published_at": "2021-02-08T00:37:02+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4af600b1", "title": "Chemical recovery and browning of Nova Scotia surface waters in response to declining acid deposition", "url": "https://dewey.dunnington.ca/publication/redden_etal21/", "published_at": "2021-02-02T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4b6ec746", "title": "Hacking Seabird HEX files using R and the tidyverse", "url": "https://dewey.dunnington.ca/post/2020/hacking-seabird-hex-files-using-r-and-the-tidyverse/", "published_at": "2020-12-05T14:10:14+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4bb2044a", "title": "Comparing the Predictive Performance, Interpretability, and Accessibility of Machine Learning and Physically Based Models for Water Treatment", "url": "https://dewey.dunnington.ca/publication/dunnington_etal20b/", "published_at": "2020-11-11T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4c429df9", "title": "Using High-Throughput Paleolimnological Methods to Evaluate the Distribution and Transport of Lead in Northeastern North America", "url": "https://dewey.dunnington.ca/publication/dunnington20/", "published_at": "2020-08-30T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4cdcb360", "title": "New article: The distribution and transport of Pb in northeastern North America", "url": "https://dewey.dunnington.ca/post/2020/pb-in-northeastern-north-america/", "published_at": "2020-06-22T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4dc5e88d", "title": "The distribution and transport of lead over two centuries as recorded by lake sediments from northeastern North America", "url": "https://dewey.dunnington.ca/publication/dunnington_etal20a/", "published_at": "2020-06-06T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4e9caca6", "title": "Getting started with Zotero, Better BibTeX, and RMarkdown", "url": "https://dewey.dunnington.ca/post/2020/getting-started-zotero-better-bibtex-rmarkdown/", "published_at": "2020-05-09T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f4f77c7d0", "title": "The forthcoming {wk} package preview!", "url": "https://dewey.dunnington.ca/post/2020/wk-package-preview/", "published_at": "2020-05-06T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f5009bd7d", "title": "Evaluating the performance of calculated elemental measures in sediment archives", "url": "https://dewey.dunnington.ca/publication/dunnington_etal20/", "published_at": "2020-05-05T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f50b03d18", "title": "Hydrologic assessment of a small maritime hydrometric monitoring network using a combined inductive-deductive process-informed catchment classification system", "url": "https://dewey.dunnington.ca/publication/conf_johnston_etal20/", "published_at": "2020-05-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f50fc76c4", "title": "Calculating lake outlets using R", "url": "https://dewey.dunnington.ca/post/2020/calculating-lake-outlets-using-r/", "published_at": "2020-04-22T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f51c20587", "title": "Calling QGIS3 from R", "url": "https://dewey.dunnington.ca/post/2020/calling-qgis-from-r/", "published_at": "2020-04-16T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f51d4dd41", "title": "Stream networks using R and sf", "url": "https://dewey.dunnington.ca/post/2020/stream-networks-using-r-and-sf/", "published_at": "2020-04-14T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f51e27960", "title": "Cribbage in R using R6 and vctrs", "url": "https://dewey.dunnington.ca/post/2020/cribbage-in-r-using-r6-and-vctrs/", "published_at": "2020-02-23T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f52ab7e5d", "title": "Using GEOS in Rcpp", "url": "https://dewey.dunnington.ca/post/2020/using-geos-in-rcpp/", "published_at": "2020-02-11T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f5366cbc4", "title": "Large-Scale Rock Slope Deformation from the Tablelands and Lookout Hills of Western Newfoundland, Canada", "url": "https://dewey.dunnington.ca/publication/spooner_etal20/", "published_at": "2020-02-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f53b81477", "title": "The Strativerse: an interactive collection of time-stratigraphic records of environmental change", "url": "https://dewey.dunnington.ca/publication/conf_dunnington20a/", "published_at": "2020-02-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f540d1333", "title": "A paleolimnological assessment of factors affecting metal deposition and productivity in upland hydroelectric reservoirs, Nova Scotia, Canada", "url": "https://dewey.dunnington.ca/publication/conf_muzak-ruff_etal20/", "published_at": "2020-01-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f54861f5e", "title": "Best practices for programming with ggplot2", "url": "https://dewey.dunnington.ca/publication/conf_dunnington20b/", "published_at": "2020-01-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f553b3bba", "title": "Classifying the Hydrologic Regime of Nova Scotia Watersheds and Analysis of the Current Hydrometric Monitoring Network", "url": "https://dewey.dunnington.ca/publication/conf_johnston_etal20a/", "published_at": "2020-01-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f55939c9c", "title": "Really basic Stan", "url": "https://dewey.dunnington.ca/post/2019/really-basic-stan/", "published_at": "2019-12-15T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f55a91552", "title": "Bathymetry & Lake Volume Estimation using R", "url": "https://dewey.dunnington.ca/post/2019/bathymetry-lake-volume-estimation-using-r/", "published_at": "2019-11-14T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f560b613e", "title": "Establishing the timing of stable Pb deposition in Maritime-Canadian Lakes", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_etal19b/", "published_at": "2019-11-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f569428c6", "title": "Evaluating the biological response of drinking water reservoirs to lake recovery using invertebrate abundance and environmental DNA", "url": "https://dewey.dunnington.ca/publication/conf_mcguire_etal19/", "published_at": "2019-11-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f56bf48d6", "title": "Using a Hexagonal Grid for Canada's Election Map", "url": "https://dewey.dunnington.ca/post/2019/canada-ridings-hex/", "published_at": "2019-10-21T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f575e2ee5", "title": "Depth-Time visualization using R, the tidyverse, and ggplot2", "url": "https://dewey.dunnington.ca/post/2019/depth-time-heatmaps/", "published_at": "2019-09-20T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f575efa7f", "title": "Public Data Dive: Canada's Elections", "url": "https://dewey.dunnington.ca/post/2019/public-data-dive-elections-canada/", "published_at": "2019-09-06T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f576afb56", "title": "A Summer of RStudio and ggplot2", "url": "https://dewey.dunnington.ca/post/2019/a-summer-of-rstudio-and-ggplot2/", "published_at": "2019-07-22T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f57e458b7", "title": "Purposeful Issue Organizing", "url": "https://dewey.dunnington.ca/post/2019/purposeful-issue-organizing/", "published_at": "2019-07-22T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f57f03573", "title": "Doing Bayesian Lead-210 interpretation", "url": "https://dewey.dunnington.ca/post/2019/doing-bayesian-lead-210-interpretation/", "published_at": "2019-05-01T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f588c1da2", "title": "Summarising SQL Translation for multiple dbplyr backends", "url": "https://dewey.dunnington.ca/post/2019/summarising-sql-translation-for-multiple-dbplyr-backends/", "published_at": "2019-04-09T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f59857fc3", "title": "Visualizing Canadian Climate Normals", "url": "https://dewey.dunnington.ca/post/2019/visualizing-canadian-climate-normals/", "published_at": "2019-03-26T00:00:00+00:00" }, { "id": "01a0876c-3d19-7382-9c2b-2c2f5a080b2a", "title": "Public Data Dive: 2018 Boeing 737 MAX flights", "url": "https://dewey.dunnington.ca/post/2019/public-data-dive-2018-boeing-737-max-flights/", "published_at": "2019-03-17T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014ef99dd0cd", "title": "Evaluating the utility of elemental measurements obtained from factory-calibrated field-portable X-Ray fluorescence units for aquatic sediments", "url": "https://dewey.dunnington.ca/publication/dunnington_etal19/", "published_at": "2019-03-03T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efa69e506", "title": "Land-use controls on spatiotemporal trace metal accumulation in Maritime Canadian lakes", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_spooner19/", "published_at": "2019-02-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efb5e691e", "title": "Reconstructing a coagulant optimization model using R and Shiny", "url": "https://dewey.dunnington.ca/post/2019/reconstructing-a-coagulant-optimization-model-using-r-and-shiny/", "published_at": "2019-01-30T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efbe45d76", "title": "Evaluating long-term reservoir water quality trends using sediment chemistry and historical invertebrate abundance at Cape Breton, Nova Scotia, Canada", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_etal18d/", "published_at": "2018-09-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efbf9b4a1", "title": "Pourbaix-ish diagrams using PHREEQC and R", "url": "https://dewey.dunnington.ca/post/2018/pourbaix-ish-diagrams-using-phreeqc-and-r/", "published_at": "2018-08-16T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efc045a95", "title": "Stratigraphic diagrams with tidypaleo & ggplot2", "url": "https://dewey.dunnington.ca/post/2018/stratigraphic-diagrams-with-tidypaleo-ggplot2/", "published_at": "2018-08-14T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efc68f3dd", "title": "Keeping data in context: using metadata-friendly, computer-readable storage formats for research data", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_spooner18b/", "published_at": "2018-08-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efcefd623", "title": "Anthropogenic activity in the Halifax region, Nova Scotia, Canada, as recorded by bulk geochemistry of lake sediments", "url": "https://dewey.dunnington.ca/publication/dunnington_etal18/", "published_at": "2018-06-06T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efddd9deb", "title": "Using Lake Sediment to predict future treatment challenges: A case study from Halifax, Nova Scotia", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_etal18e/", "published_at": "2018-06-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efe0aae3d", "title": "The Circumpolar Diatom Database using R, the tidyverse, and mudata2", "url": "https://dewey.dunnington.ca/post/2018/the-circumpolar-diatom-database-using-r-the-tidyverse-and-mudata2/", "published_at": "2018-04-09T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014efed9bc0c", "title": "Comparing approaches to age-depth modelling in R", "url": "https://dewey.dunnington.ca/post/2018/comparing-approaches-to-age-depth-modelling-in-r/", "published_at": "2018-03-15T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014eff3e4cf8", "title": "Using a linked table-based structure to encode self-describing multiparameter spatiotemporal data", "url": "https://dewey.dunnington.ca/publication/dunnington_spooner18/", "published_at": "2018-03-03T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014eff9284b3", "title": "Application of the paleolimnological method in the environmental assessment of effluent-influenced freshwater sediment: an example from northern Nova Scotia", "url": "https://dewey.dunnington.ca/publication/conf_holmes_etal18a/", "published_at": "2018-03-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014effbca96c", "title": "Evaluating the utility of field-portable X-ray fluorescence (pXRF) for the rapid measurement of landscape change proxies", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_etal18c/", "published_at": "2018-03-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f00afbb02", "title": "Impact of historical logging and hydroelectric development on an upland river system, Nova Scotia, Canada: a paleolimnological perspective", "url": "https://dewey.dunnington.ca/publication/conf_godfrey_etal18/", "published_at": "2018-03-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f01ab8302", "title": "Modifying facet scales in ggplot2", "url": "https://dewey.dunnington.ca/post/2018/modifying-facet-scales-in-ggplot2/", "published_at": "2018-02-28T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f026f77b5", "title": "Verbifying nouns and using the pipe in ggplot2", "url": "https://dewey.dunnington.ca/post/2018/verbifying-nouns-and-using-the-pipe-in-ggplot2/", "published_at": "2018-02-27T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f034cb011", "title": "Application of the paleolimnological method in the environmental assessment of effluent-influenced freshwater sediment: an example from northern Nova Scotia", "url": "https://dewey.dunnington.ca/publication/conf_holmes_etal18/", "published_at": "2018-02-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f03c6c324", "title": "Environmental data for future generations: storage formats for multi-parameter, spatiotemporal data", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_spooner18a/", "published_at": "2018-02-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f0479825c", "title": "How to look up timezones for 8,000 locations in R", "url": "https://dewey.dunnington.ca/post/2018/how-to-look-up-timezones-for-8000-locations-in-r/", "published_at": "2018-01-08T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f04ce3664", "title": "Abbreviating journal titles using BibTex & R", "url": "https://dewey.dunnington.ca/post/2017/abbreviating-journal-titles-using-bibtex-r/", "published_at": "2017-11-04T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f059d09c2", "title": "A paleolimnological approach to understanding metal retention and mobility associated with salt-water inundation at Laytons Lake, Nova Scotia.", "url": "https://dewey.dunnington.ca/publication/conf_mcguire_etal17/", "published_at": "2017-10-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f061a6874", "title": "Spatiotemporal assessment of metal concentrations of pre-effluent estuarine sediments in a freshwater kraft pulp mill taillings pond in Pictou County, Nova Scotia, using paleolimnological methods", "url": "https://dewey.dunnington.ca/publication/conf_davidson_etal17/", "published_at": "2017-10-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f063e5fd4", "title": "Late Holocene Records of Changing Moisture Regime from Wetlands in Southwestern Nova Scotia, Canada: Implications for Wetland Conservation and Restoration", "url": "https://dewey.dunnington.ca/publication/spooner_etal17/", "published_at": "2017-09-09T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f069009f0", "title": "Using Lake Sediment to predict future treatment challenges: A case study from Halifax, Nova Scotia", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_etal17b/", "published_at": "2017-09-01T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f071bfa6c", "title": "R data structures for Chemical Modeling", "url": "https://dewey.dunnington.ca/post/2017/r-data-structures-for-chemical-modeling/", "published_at": "2017-08-25T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f07c91e61", "title": "Using the tidyverse to wrangle core data", "url": "https://dewey.dunnington.ca/post/2017/using-the-tidyverse-to-wrangle-core-data/", "published_at": "2017-08-24T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f08b7df5b", "title": "Environment Canada HYDAT data in R", "url": "https://dewey.dunnington.ca/post/2017/environment-canada-hydat-data-in-r/", "published_at": "2017-07-21T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f0966b7d4", "title": "10,000 Years of Metal Dynamics in the Tantramar Marshes", "url": "https://dewey.dunnington.ca/post/2017/10000-years-of-metal-dynamics-in-the-tantramar-marshes/", "published_at": "2017-05-27T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f09ba96b1", "title": "A paleolimnological archive of metal sequestration and release in the Cumberland Basin Marshes, Atlantic Canada", "url": "https://dewey.dunnington.ca/publication/dunnington_etal17/", "published_at": "2017-05-05T00:00:00+00:00" }, { "id": "01a0876c-3d1a-72a3-848d-014f0a7eccdc", "title": "A unified stable Pb sediment chronology for Halifax, Nova Scotia, Canada", "url": "https://dewey.dunnington.ca/publication/conf_dunnington_etal17a/", "published_at": "2017-05-01T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84ce3a375c", "title": "Line-by-line, row-by-row...", "url": "https://dewey.dunnington.ca/post/2017/line-by-line-row-by-row.../", "published_at": "2017-03-27T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84ce4805be", "title": "The Mineralogical Paragram", "url": "https://dewey.dunnington.ca/post/2017/the-mineralogical-paragram/", "published_at": "2017-03-19T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84cee1db34", "title": "Modeling sediment deformation using R & RMarkdown", "url": "https://dewey.dunnington.ca/post/2017/modeling-sediment-deformation-using-r-rmarkdown/", "published_at": "2017-02-17T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84cfb27f9a", "title": "Modeling the effect of convex upward sediment deformation and horizontal core sectioning on paleolimnological data", "url": "https://dewey.dunnington.ca/publication/dunnington_spooner17/", "published_at": "2017-02-02T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84cfe4e1b0", "title": "Processing sub-bottom profiling data in Python", "url": "https://dewey.dunnington.ca/post/2016/processing-sub-bottom-profiling-data-in-python/", "published_at": "2016-11-17T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84d09a7494", "title": "Using PySerial, PyNMEA2, and Raspberry Pi to log NMEA output", "url": "https://dewey.dunnington.ca/post/2016/using-pyserial-pynmea2-and-raspberry-pi-to-log-nmea-output/", "published_at": "2016-11-15T00:00:00+00:00" }, { "id": "01a0876c-3d1b-7270-a26a-8b84d157551b", "title": "A geochemical perspective on the impact of development at Alta Lake, British Columbia, Canada", "url": "https://dewey.dunnington.ca/publication/dunnington_etal16/", "published_at": "2016-11-11T00:00:00+00:00" } ] posts Claim your blog
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dewey.dunnington.ca

2026

Wrangling and joining 130M points...in 2026original ↗
24 Apr 2026

2025

Day 24: The Mud Lakes of Nova Scotiaoriginal ↗
23 Nov 2025
Day 6: Dimensionsoriginal ↗
6 Nov 2025
Day 5: Earthoriginal ↗
5 Nov 2025
Day 2: Linesoriginal ↗
2 Nov 2025
Day 1: Pointsoriginal ↗
1 Nov 2025
Lazy GeoParquet reading in SedonaDB, DuckDB, GeoPandas, and GDALoriginal ↗
16 Oct 2025
(Geo)Data cleaning with Arrow and SedonaDBoriginal ↗
6 Oct 2025
Stream network traversal with SedonaDBoriginal ↗
26 Sept 2025
Apache...Sedona, you say?original ↗
8 Jan 2025

2024

Partitioning strategies for bigger-than-memory spatial dataoriginal ↗
2 Dec 2024
Wrangling and joining 130M points with DuckDB + the open source spatial stackoriginal ↗
2 Dec 2024

2022

GDAL 3.6, ADBC, nanoarrow, and the humble ArrowArrayStreamoriginal ↗
10 Nov 2022
wk version 0.7.0!original ↗
13 Oct 2022
Profiling point representations in GeoArroworiginal ↗
21 Sept 2022
geos version 0.2original ↗
28 Aug 2022
s2 version 1.1.0original ↗
18 Jul 2022
Building Bridges: Arrow, Parquet, and Geospatial Computingoriginal ↗
18 May 2022
Profiling point-in-polygon joins in Roriginal ↗
12 Mar 2022

2021

wk version 0.6.0!original ↗
24 Dec 2021
argodata: An R interface to oceanographic data from the International Argo Programoriginal ↗
1 Dec 2021
Application of the paleolimnological method to assess metal contaminant distribution (As, Cu, Pb, Zn) in pulp mill stabilization basin sediments, Nova Scotia, Canadaoriginal ↗
1 Oct 2021
Evaluating the multidecadal response of historic seawater incursion events and salinity-induced meromixis at Laytons Lake, Nova Scotia, Canadaoriginal ↗
1 Oct 2021
Prototyping an Apache Arrow representation of geometryoriginal ↗
14 Sept 2021
wk version 0.5.0!original ↗
13 Jul 2021
Relative importance of organic- and iron-based colloids in six Nova Scotian lakesoriginal ↗
4 Apr 2021
Stream networks using R and GEOSoriginal ↗
2 Apr 2021
wk version 0.4.0!original ↗
3 Mar 2021
Using R's cross-platform iconv wrapper from cpp11original ↗
8 Feb 2021
Chemical recovery and browning of Nova Scotia surface waters in response to declining acid depositionoriginal ↗
2 Feb 2021

2020

Hacking Seabird HEX files using R and the tidyverseoriginal ↗
5 Dec 2020
Comparing the Predictive Performance, Interpretability, and Accessibility of Machine Learning and Physically Based Models for Water Treatmentoriginal ↗
11 Nov 2020
Using High-Throughput Paleolimnological Methods to Evaluate the Distribution and Transport of Lead in Northeastern North Americaoriginal ↗
30 Aug 2020
New article: The distribution and transport of Pb in northeastern North Americaoriginal ↗
22 Jun 2020
The distribution and transport of lead over two centuries as recorded by lake sediments from northeastern North Americaoriginal ↗
6 Jun 2020
Getting started with Zotero, Better BibTeX, and RMarkdownoriginal ↗
9 May 2020
The forthcoming {wk} package preview!original ↗
6 May 2020
Evaluating the performance of calculated elemental measures in sediment archivesoriginal ↗
5 May 2020
Hydrologic assessment of a small maritime hydrometric monitoring network using a combined inductive-deductive process-informed catchment classification systemoriginal ↗
1 May 2020
Calculating lake outlets using Roriginal ↗
22 Apr 2020
Calling QGIS3 from Roriginal ↗
16 Apr 2020
Stream networks using R and sforiginal ↗
14 Apr 2020
Cribbage in R using R6 and vctrsoriginal ↗
23 Feb 2020
Using GEOS in Rcpporiginal ↗
11 Feb 2020
Large-Scale Rock Slope Deformation from the Tablelands and Lookout Hills of Western Newfoundland, Canadaoriginal ↗
1 Feb 2020
The Strativerse: an interactive collection of time-stratigraphic records of environmental changeoriginal ↗
1 Feb 2020
A paleolimnological assessment of factors affecting metal deposition and productivity in upland hydroelectric reservoirs, Nova Scotia, Canadaoriginal ↗
1 Jan 2020
Best practices for programming with ggplot2original ↗
1 Jan 2020
Classifying the Hydrologic Regime of Nova Scotia Watersheds and Analysis of the Current Hydrometric Monitoring Networkoriginal ↗
1 Jan 2020

2019

Really basic Stanoriginal ↗
15 Dec 2019
Bathymetry & Lake Volume Estimation using Roriginal ↗
14 Nov 2019
Establishing the timing of stable Pb deposition in Maritime-Canadian Lakesoriginal ↗
1 Nov 2019
Evaluating the biological response of drinking water reservoirs to lake recovery using invertebrate abundance and environmental DNAoriginal ↗
1 Nov 2019
Using a Hexagonal Grid for Canada's Election Maporiginal ↗
21 Oct 2019
Depth-Time visualization using R, the tidyverse, and ggplot2original ↗
20 Sept 2019
Public Data Dive: Canada's Electionsoriginal ↗
6 Sept 2019
A Summer of RStudio and ggplot2original ↗
22 Jul 2019
Purposeful Issue Organizingoriginal ↗
22 Jul 2019
Doing Bayesian Lead-210 interpretationoriginal ↗
1 May 2019
Summarising SQL Translation for multiple dbplyr backendsoriginal ↗
9 Apr 2019
Visualizing Canadian Climate Normalsoriginal ↗
26 Mar 2019
Public Data Dive: 2018 Boeing 737 MAX flightsoriginal ↗
17 Mar 2019
Evaluating the utility of elemental measurements obtained from factory-calibrated field-portable X-Ray fluorescence units for aquatic sedimentsoriginal ↗
3 Mar 2019
Land-use controls on spatiotemporal trace metal accumulation in Maritime Canadian lakesoriginal ↗
1 Feb 2019
Reconstructing a coagulant optimization model using R and Shinyoriginal ↗
30 Jan 2019

2018

Evaluating long-term reservoir water quality trends using sediment chemistry and historical invertebrate abundance at Cape Breton, Nova Scotia, Canadaoriginal ↗
1 Sept 2018
Pourbaix-ish diagrams using PHREEQC and Roriginal ↗
16 Aug 2018
Stratigraphic diagrams with tidypaleo & ggplot2original ↗
14 Aug 2018
Keeping data in context: using metadata-friendly, computer-readable storage formats for research dataoriginal ↗
1 Aug 2018
Anthropogenic activity in the Halifax region, Nova Scotia, Canada, as recorded by bulk geochemistry of lake sedimentsoriginal ↗
6 Jun 2018
Using Lake Sediment to predict future treatment challenges: A case study from Halifax, Nova Scotiaoriginal ↗
1 Jun 2018
The Circumpolar Diatom Database using R, the tidyverse, and mudata2original ↗
9 Apr 2018
Comparing approaches to age-depth modelling in Roriginal ↗
15 Mar 2018
Using a linked table-based structure to encode self-describing multiparameter spatiotemporal dataoriginal ↗
3 Mar 2018
Application of the paleolimnological method in the environmental assessment of effluent-influenced freshwater sediment: an example from northern Nova Scotiaoriginal ↗
1 Mar 2018
Evaluating the utility of field-portable X-ray fluorescence (pXRF) for the rapid measurement of landscape change proxiesoriginal ↗
1 Mar 2018
Impact of historical logging and hydroelectric development on an upland river system, Nova Scotia, Canada: a paleolimnological perspectiveoriginal ↗
1 Mar 2018
Modifying facet scales in ggplot2original ↗
28 Feb 2018
Verbifying nouns and using the pipe in ggplot2original ↗
27 Feb 2018
Application of the paleolimnological method in the environmental assessment of effluent-influenced freshwater sediment: an example from northern Nova Scotiaoriginal ↗
1 Feb 2018
Environmental data for future generations: storage formats for multi-parameter, spatiotemporal dataoriginal ↗
1 Feb 2018
How to look up timezones for 8,000 locations in Roriginal ↗
8 Jan 2018

2017

Abbreviating journal titles using BibTex & Roriginal ↗
4 Nov 2017
A paleolimnological approach to understanding metal retention and mobility associated with salt-water inundation at Laytons Lake, Nova Scotia.original ↗
1 Oct 2017
Spatiotemporal assessment of metal concentrations of pre-effluent estuarine sediments in a freshwater kraft pulp mill taillings pond in Pictou County, Nova Scotia, using paleolimnological methodsoriginal ↗
1 Oct 2017
Late Holocene Records of Changing Moisture Regime from Wetlands in Southwestern Nova Scotia, Canada: Implications for Wetland Conservation and Restorationoriginal ↗
9 Sept 2017
Using Lake Sediment to predict future treatment challenges: A case study from Halifax, Nova Scotiaoriginal ↗
1 Sept 2017
R data structures for Chemical Modelingoriginal ↗
25 Aug 2017
Using the tidyverse to wrangle core dataoriginal ↗
24 Aug 2017
Environment Canada HYDAT data in Roriginal ↗
21 Jul 2017
10,000 Years of Metal Dynamics in the Tantramar Marshesoriginal ↗
27 May 2017
A paleolimnological archive of metal sequestration and release in the Cumberland Basin Marshes, Atlantic Canadaoriginal ↗
5 May 2017
A unified stable Pb sediment chronology for Halifax, Nova Scotia, Canadaoriginal ↗
1 May 2017
Line-by-line, row-by-row...original ↗
27 Mar 2017
The Mineralogical Paragramoriginal ↗
19 Mar 2017
Modeling sediment deformation using R & RMarkdownoriginal ↗
17 Feb 2017
Modeling the effect of convex upward sediment deformation and horizontal core sectioning on paleolimnological dataoriginal ↗
2 Feb 2017

2016

Processing sub-bottom profiling data in Pythonoriginal ↗
17 Nov 2016
Using PySerial, PyNMEA2, and Raspberry Pi to log NMEA outputoriginal ↗
15 Nov 2016
A geochemical perspective on the impact of development at Alta Lake, British Columbia, Canadaoriginal ↗
11 Nov 2016
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