Niche Modeling http://landshape.org/enm The Power of Numeracy Sat, 20 Dec 2014 02:56:44 +0000 en-US hourly 1 WhyWhere – An R package implementation for species distribution modelling http://landshape.org/enm/whywhere-r-package-implementation-species-distribution-modelling/ http://landshape.org/enm/whywhere-r-package-implementation-species-distribution-modelling/#comments Sat, 20 Dec 2014 02:54:38 +0000 http://landshape.org/enm/?p=6540 This package implements the species modelling algorithm called WhyWhere documented in the article “Improving ecological niche models by data mining large environmental datasets for surrogate models” by David R.B. Stockwell in Ecological Modelling Volume 192, Issues 1–2, 15 February 2006, Pages 188–196. (< href="http://arxiv.org/pdf/q-bio/0511046.pdf">PDF). Download the package WhyWhere_0.1.tar

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Anomaly – a new R package for detecting and correcting instrument errors http://landshape.org/enm/anomaly-an-r-package/ http://landshape.org/enm/anomaly-an-r-package/#comments Sat, 20 Dec 2014 00:17:58 +0000 http://landshape.org/enm/?p=6529 This package performs operations known as “homogenization” on time series data that is subject to various non-natural anomalies such as instrument baseline changes and spikes. Preliminary testing indicates that it has a considerably higher sensitivity to small baseline shifts than a Chow test. Below is a scatterplot of the size of a single shift on […]

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Book: Niche Modeling http://landshape.org/enm/book-niche-modeling/ http://landshape.org/enm/book-niche-modeling/#comments Fri, 28 Nov 2014 22:20:09 +0000 http://landshape.org/enm/?p=6517 Using theory, applications, and examples of inferences, Niche Modeling: Predictions from Statistical Distributions demonstrates how to conduct and evaluate niche modeling projects in any area of application. It features a series of theoretical and practical exercises for developing and evaluating niche models.

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BoM copies me, inadequately http://landshape.org/enm/bom-copies-me-inadequately/ http://landshape.org/enm/bom-copies-me-inadequately/#comments Fri, 31 Oct 2014 01:06:19 +0000 http://landshape.org/enm/?p=6478 Yesterday’s post noted the appearance of station summaries at the BoM adjustment page attempting to defend their adjustments to the temperature record at several stations. Some I have also examined. Today’s post compares and contrasts their approach with mine. Deniliquin The figures below compare the minimum temperatures at Deniliquin with neighbouring stations. On the left, […]

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BoM publishing station summaries justifying adjustments http://landshape.org/enm/bom-publishing-station-summaries-justifying-adjustments/ http://landshape.org/enm/bom-publishing-station-summaries-justifying-adjustments/#comments Thu, 30 Oct 2014 06:30:03 +0000 http://landshape.org/enm/?p=6472 Last night George Christensen MP gave a speech accusing the Bureau of Meteorology of “fudging figures”. He waved a 28 page of adjustments around, and called for a review. These adjustments can be found here. While I dont agree that adjusting to account for station moves can necessarily be regarded as fudging figures, I am […]

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Kerang: Where is the daily data? http://landshape.org/enm/kerang-where-is-the-daily-data/ http://landshape.org/enm/kerang-where-is-the-daily-data/#comments Sat, 25 Oct 2014 10:17:32 +0000 http://landshape.org/enm/?p=6453 Been looking forward to doing Kerang as I knew it was another dud series from ACORN-SAT. The report is here: Kerang The first thing to notice in plotting up the time series data for the raw CDO and ACORN-SAT is that while the ACORN-SAT data goes back to 1910 the CDO data is truncated at […]

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Scorecard for ACORN-SAT Quality Assurance – the score so far. http://landshape.org/enm/scorecard-for-acorn-sat-quality-assurance-the-score-so-far/ http://landshape.org/enm/scorecard-for-acorn-sat-quality-assurance-the-score-so-far/#comments Wed, 22 Oct 2014 05:57:32 +0000 http://landshape.org/enm/?p=6437 Three more quality tests of stations in the ACORN-SAT series have been completed: Wilcannia Cape Otway Lighthouse Amberley The test measures the deviation of the trend of the series from its neighbours since 1913 (or residual trend). A deviation of plus or minus 0.05 degrees per decade is within tolerance (green), 0.05 to 0.1 is […]

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Williamtown RAAF – an interesting case http://landshape.org/enm/williamtown-raaf-an-interesting-case/ http://landshape.org/enm/williamtown-raaf-an-interesting-case/#comments Mon, 20 Oct 2014 11:21:23 +0000 http://landshape.org/enm/?p=6432 Williamtown RAAF is one case where the quality control test indicates that the adjustments were justified, even though the homogenization in ACORN-SAT produced a strong change in trend. My report is here and Ken has posted graphs for Williamtown, along with a number of sites with large changes in trend by ACORN-SAT. . This illustrates […]

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Panel tests of the ACORN-SAT temperature network – first results http://landshape.org/enm/panel-tests-of-the-acorn-sat-temperature-network-first-results/ http://landshape.org/enm/panel-tests-of-the-acorn-sat-temperature-network-first-results/#comments Sun, 19 Oct 2014 03:34:10 +0000 http://landshape.org/enm/?p=6419 You may have read Ken Stewart’s excellent blog on the official Australian temperature record. With the publication of the “adjustments.xls” file of the offical adjustments to the raw data in the ACORN-SAT dataset, as reported on JoNova’s blog, there has been a flurry of work behind the scenes, so to speak. Jennifer Marohasy has been […]

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New energy source confirmed in third party test http://landshape.org/enm/new-energy-source-confirmed-in-thrid-party-test/ http://landshape.org/enm/new-energy-source-confirmed-in-thrid-party-test/#comments Thu, 09 Oct 2014 20:37:07 +0000 http://landshape.org/enm/?p=6409 As previously covered here, Andre Rossi appears to have delivered the goods… Cold fusion reactor verified by third-party researchers, seems to have 1 million times the energy density of gasoline Andrea Rossi’s E-Cat — the device that purports to use cold fusion to generate massive amounts of cheap, green energy – has been verified by […]

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