Geographic Resource Solutions

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Geographic Resource Solutions

Welcome to GRS

  • viewto80822bGRS, located in Arcata CA, was founded in 1989 to provide superior-quality resource information development, technical, and consulting services.
  • GRS is a leader in the implementation of ecologically-based field data collection methodologies designed to provide comprehensive, quantitative, and detailed species-specific cover estimates of the botanical and abiotic features that comprise the ecosystems we must accurately describe.

  • GRS offers "state-of-the-art" natural resource inventory and land cover mapping services based on the application of our unique Discrete Classification Mapping Methodology in combination with traditional vendor provided applications; GRS maps (not models) species-specific cover as a continuous variable, along with other landscape and abiotic characteristics to develop comprehensive resource inventory information.

  • GRS offers complex resource analyses that include natural resource inventory, growth projection, long-term sustained yield projection, long-term harvest scheduling, and change detection.
  • GRS offers total GIS solutions including GIS consulting; data set development, analysis, quality control, and processing; application development; and software sales.

  • GRS has extensive experience designing and developing superior solutions for a wide range of applications, users, and organizations.

 

GRS Completes Second (2017) Kuskokwim River Forest Inventory Field Season

July 31, 2017 - For Immediate Release

Geographic Resource Solutions completed its second BLM Alaska Forest Inventory field season in the eastern portion of the middle Kuskokwim River drainage.  Field sampling took place over a three-week period, beginning on July 10th and ending on July 29th,  during which field staff sampled 66 field sites and visited an additional 14 field sample areas while traveling approximately 270 miles starting in Lime Village along the Stony River and then continuing along the Kuskokwim River and portions of the Swift, Cheeneetnuk, and Selatna rivers, sampling as far east on the Kuskokwim River as 10 miles north of the mouth of the Selatna River.  Sample stands were selected for use in GRS's subsequent application of their Discrete Classification Mapping Methodology (DCMM) based on the processing of Landsat 8 imagery from 2015 and 2016.  Sample stands were selected on the basis of image stratification results that identified the largest homogeneous areas of the different spectrally determined strata that represented the different forestlands in the middle Kuskokwim River drainage.  Sample sites were accessed from points traveled to by boat along the river(s) and then cross-country hiking.

GRS staff implemented the line-point transect sampling methodology to develop the usual species/landscape feature-specific canopy cover estimates, but which GRS has adapted to also develop forest inventory estimates that include species-specific estimates of trees/acres, heighth, cubic volume, and biomass (dry tons/acre).  All trees, shrubs, herbaceous and non-vascular plants were recorded, as well as landscape features that represented abiotic site features related to the sampled plant communities.  Integrated in this sampling approach were Brown's transects to estimate both counts of both coarse by decay class and fine woody debris by fuel class.  The resulting sample area summary data produced species-specific estimates of canopy cover, quadratic mean diameter, trees/acre, average heighth, cubic volume/acre, and biomass (dry tons)/acre.

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GRS Completes First (2016) Kuskokwim River Forest Inventory Field Season

July 31, 2016 - For Immediate Release

Geographic Resource Solutions completed its first BLM Alaska Forest Inventory field season in the middle Kuskokwim River drainage.  Field sampling took place over a five-week period, beginning on June 13th and ending on July 16th,  during which field staff sampled 148 field sites while traveling approximately 210 miles from east to west along the Kuskokwim River.  Sample stands were selected for use in GRS's subsequent application of their Discrete Classification Mapping Methodology (DCMM) based on the processing of Landsat 8 imagery from 2014 and 2015.  Sample stands were selected on the basis of image stratification results that identified the largest homogeneous areas of the different spectrally determined strata that represented the different forestlands in the middle Kuskokwim River drainage.  Sample sites were accessed from points traveled to by boat along the river(s) and then cross-country hiking.

GRS staff implemented the line-point transect sampling methodology to develop the usual species/landscape feature-specific canopy cover estimates, but which GRS has adapted to also develop forest inventory estimates that include species-specific estimates of trees/acres, heighth, cubic volume, and biomass (dry tons/acre).  All trees, shrubs, herbaceous and non-vascular plants were recorded, as well as landscape features that represented abiotic site features related to the sampled plant communities.  Integrated in this sampling approach were Brown's transects to estimate both counts of both coarse by decay class and fine woody debris by fuel class.  The resulting sample area summary data produced species-specific estimates of canopy cover, quadratic mean diameter, trees/acre, average heighth, cubic volume/acre, and biomass (dry tons)/acre.

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UN-FAO Resource Sampling Study Recommends Use of Line-point Transect and GRS Densitometer


October 30, 2015 - For Immediate Release

"The line-point transect forest cover assessment method was the most accurate,least expensive, and most easily applied among the four methods tested. This method is scientifically accurate and records forest canopy and floor cover as a set."

This is the major conclusion of a recent study undertaken by the Food and Agriculture Organization of the United Nations (FAO) when they recently presented the results of their study "Testing Field Methods for Assessing the Forest Protective Function for Soil and Water" this past September at the XVI World Forestry Congress held in Durban, South Africa.  In conjunction with this study the FAO has also published a second paper "Field Guide for Rapid Assessment of Forest Protective Function for Soil and Water" that describes their recommended use of the line- point transect and GRS Densitometer to assess forest ecosystems.

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GRS Awarded BLM Alaska Forest Inventory Serivces Contract


November 12, 2015 - For Immediate Release

Geographic Resource Solutions (GRS) was recently awarded a 5-year Blanket Purchase Agreement by the Bureau of Land Management, Alaska (BLM ALaska) to provide forest inventory and mapping services.  In awarding this contract, BLM Alaska recognized that the integrated field inventory and mapping methodologies that GRS has developed can be used in forest inventory applications to estimate and map tree volume and biomass, in addition to the species-specific canopy cover, fire fuel, and plant association/alliance type mapping similar to the results GRS produced during the Galena Forest Biomass Inventory and Planning Project and the Tonsina Valley Forest Inventory and Mapping Projects.

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GSA# GS-10F-0451NESRI Consultant