by Katie Simmons | Jul 5, 2013 | Forest Inventory, LiDAR
A team of researchers at Interpine recently completed a case study where stand attributes were derived from field measurements and LiDAR data using an approach known as nearest neighbor (kNN) imputation. The study was highly successful and produced unbiased and...
by David Herries | May 6, 2013 | Forest Inventory, GIS and Mapping, LiDAR
Hamish Marshall, Jonathan Dash and David Herries from Interpine recently lead a workshop series in collaboration with Future Forest Research and SCION. This covered the use of Remote Sensing for Resource Assessment, and was held in Christchurch and...
by David Herries | Feb 7, 2013 | Forest Inventory, PlotSafe
Featured this week on Hyundai Country Calendar, Farm Forester Gabrielle Walton believes landowners should look beyond pine and plant a wider range of timber trees on their farms. She and her parents, Cloie and David Blackley, grow a mix of specialty timbers on...
by David Herries | Nov 6, 2012 | Carbon Inventory, DataPlus Mobile, Emissions Trading Scheme, Forest Inventory, LUCAS
Interpine has completed ahead of time, the Nationwide Forest Carbon Inventory for Re-measurement of Post 1989 Forests completed over the winters of 2011,2012. A total of 202 and 193 plots were established or re-measured across the country in 2011 and 2012...
by admin | Aug 16, 2012 | Forest Inventory, LiDAR
Interpine have been doing several research projects looking at the potential of using LiDAR as an auxiliary variable in regression sampling. The results are looking very promising and we have a range of production field trials underway to move the application of LiDAR...
by admin | Jul 19, 2012 | Forest Inventory, GIS and Mapping, GPS, LiDAR
One question that has been raised in the Interpine team in our LiDAR analysis work is; “Just how important is the co-location of the LiDAR and ground survey plots ?” “and hence how much do we have to spend on a GNSS/GPS receivers for fixing LiDAR...
by David Herries | Apr 24, 2012 | Forest Inventory, PlotSafe
A recent feature we have updated in PlotSafe is the representation of diameters recorded at the stem description level. This allows for increasing diameters to be easily recorded against the stem description. Previous versions of PlotSafe had an inbuilt rule not to...
by David Herries | Feb 24, 2012 | Forest Inventory, GIS and Mapping, GPS, LUCAS
Recently, we looked at GPS Precision (EPE). A few questions were also raised about plot location and I thought it might also be good to look at how accurate we could expect to locate the survey point inside the forest under a range of conditions and forest canopies....
by David Herries | Feb 7, 2012 | Forest Inventory, GIS and Mapping, GPS
The use of recreational grade GPS (for example Garmin 60csx or Garmin 62S) is now standard practice for the location of forest inventory plots in New Zealand and Australia. We recently reviewed a few questions regarding the accuracy and precision of these GPS units,...
by David Herries | Feb 7, 2012 | Forest Inventory
A discussion recently arose on “what should be considered as the starting point for measurement of diameter breast height, that is at what point does the stump height / tree stem start”. Seems simple doesn’t it; “high side of the tree at ground...
by admin | Feb 4, 2012 | Forest Inventory, YTGEN
History of Stem / Tree Taper Equation Development Taper equations can be used to provide predictions of inside bark diameter at any point along the tree stem and stem volume based on widely recorded tree dimensions. Equations that can accurately predict tree diameter...
by David Herries | Jan 20, 2012 | Forest Inventory, Log Scaling, PlotSafe
Interpine is working closely with Halgof Sweden in 2012 to review the cost effectiveness of deployment of a range of Haglof forest mensuration equipment in NZ and Australia. Based in Northern Sweden, Haglof has been developing and building professional measurement...
by David Herries | Jan 14, 2012 | Carbon Inventory, Emissions Trading Scheme, Forest Inventory, PlotSafe
A freely available publication and data collection template is now available to help forest owners and forest inventory providers with electronically capturing carbon forest inventory data for the MPI Emission Trading Scheme (ETS) Forest Measurement Approach (FMA)....
by David Herries | Dec 9, 2011 | Forest Inventory, GIS and Mapping, LiDAR, Outside NZ
ForestTech 2011 has held in late 2011 in both Australia and New Zealand. Interpine’s Jonathan Dash and Hamish Marshall presented a discussion on Interpine’s involvement in a range of trial work relating to LiDAR analysis. A quick overview of use and role...
by David Herries | Sep 14, 2011 | Carbon Inventory, Emissions Trading Scheme, Forest Inventory, PlotSafe
The New Zealand ForestTech 2011 conference was held recently in Rotorua. Interpine’s David Herries presented to the delegates a review of a standardised data collection system for electronic collection, storage and export of carbon forest inventory measurement...
by David Herries | Sep 2, 2011 | Carbon Inventory, Emissions Trading Scheme, Forest Inventory
As of 1 Sept 2011, MAF have now released the New Zealand Emission Trading Scheme Forest Measurement Approach (FMA). Participates can now register to apply for their sample locations, and begin to organise field measurement operations. Interpine has been involved in...
by David Herries | May 18, 2011 | Forest Inventory, LiDAR
Alvaro Ramirez Carreno recently received the Mary Sutherland award for a student studying Forestry at the Annual NZ Institute of Forestry (NZIF) Conference, held in Auckland in May 2011. Alvaro started with Interpine working within our field inventory operations and...
by David Herries | May 17, 2011 | Forest Inventory, LiDAR
Susana Gonzalez Aracil recently won the NZ Institute of Forestry Annual Conference Student Research Poster Competition. Susana’s poster was based on some of her research work on LiDAR metrics and plot modelling. Susana is completing her internship in New Zealand...
by David Herries | Mar 27, 2011 | Forest Inventory, PlotSafe
A recent minor update to PlotSafe has seen prune height features stand out more to end users in the field. This will enable them to check the prune height carefully through a quick visual glance at the screen. Through user and client feedback we recognise pruned parts...
by David Herries | Jan 25, 2011 | Forest Inventory, Outside NZ, PlotSafe, YTGEN
2010 saw some interesting projects undertaken both here in New Zealand and overseas. One of these was a trip to China, looking at inventory systems and techniques used for forest sale and purchase transactions in several different provinces. China is a very large...
