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Kearney Outdoor Learning Area (KOLA) Overlay Results Images from Water Level Analysis in GRIME2 Software (Noon and Midnight only)

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Storage:	The size of this resource is 5.3 GB
Created:	Sep 09, 2025 at 1:01 p.m. (UTC)
Last updated:	Jan 16, 2026 at 1:45 a.m. (UTC)
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Sharing Status:	Public
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Abstract

Water level is one of the most fundamental measurements for monitoring, using and managing water resources. Lake, stream and canal water levels are important for wildlife habitat, recreation, agricultural production and municipal and industrial water use. This study advances the use of trail (game) cameras for water level monitoring by integrating an octagon calibration target with open-source GRIME2 software. This integrated system, including a specialized target background (“stop sign”) installed in the water, enhances reliability and ease of use, delivering consistent and accurate measurements over many months. Maintenance issues, including cleaning the sign to remove biofouling, detecting the presence of ice or snow, and identifying when shadows or other lighting issues impact measurements, are key to successful monitoring. After accounting for these issues, 90% of GRIME2 measurements were within 3 cm (0.1 feet) of traditional pressure transducer measurements over a 26-month period (52,570 images). Importantly, the new system automatically adapts to inevitable shifts in the field of view that occur with ground-based time-lapse cameras.

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Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

KOLA GRIME2 Stream Water Monitoring Site

Longitude

-99.1199°

Latitude

40.6771°

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Related Resources

This resource is referenced by	Gilmore, T. E. (2025). Kearney Outdoor Learning Area (KOLA) Water Levels from Sensor, Staff Gauge, and GRIME2 Image-based Water Level Software, HydroShare, http://www.hydroshare.org/resource/a152931d41c44de2935cc02ced44a5c2, accessed on: 09/08/2025
The content of this resource is derived from	Gilmore, T. E. (2025). Kearney Outdoor Learning Area (KOLA) Noon and Midnight Imagery for Water Level Analysis in GRIME2 Software, HydroShare, http://www.hydroshare.org/resource/f04d7a7260d6482e86b195c19eb8853c, accessed on: 09/09/2025

This resource belongs to the following collections:

Title	Owners	Sharing Status	My Permission
Kearney Outdoor Learning Area (KOLA) Data	Troy Gilmore · Mary Harner	Public & Shareable	Open Access

How to Cite

Gilmore, T. E. (2026). Kearney Outdoor Learning Area (KOLA) Overlay Results Images from Water Level Analysis in GRIME2 Software (Noon and Midnight only), HydroShare, http://www.hydroshare.org/resource/1ea43e4f535f4a77a9aefb78e338422f

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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