Canopy Monitoring Articles

London System kWp: 2.8 Area: 44.2 m sq Inverter: Kaco Modules Used: PS-C Transparent Series Polysolar supplied BIPV glazing units for a walkway canopy at Prior Weston Primary School, Barbican, London. Objective: Play area canopy designed to offer a dry and safe school yard extension, whilst reducing heat gain and glare in classrooms and providing renewable ...

Feb. 1, 2017

By Polysolar Limited

BRE-Watford System kWp: 2.25 Area: 28.6 m sq Inverter: Mastervolt Modules Used: PS-C Transparent Polysolar designed and supplied a retrofit roof garden canopy for Willmott Dixon Healthcare Campus at BRE Innovation Park, Watford. Objective: To provide a weather proof canopy designed to offer a warm light but shaded area for sitting out in while also contributing to ...

Feb. 1, 2017

By Polysolar Limited

Clients regularly ask us for advice when planning their purchases. A common question concerns the electric pump sets: What is the advantage of an electric pump with a canopy compared to an open frame version? Whether it’s a mobile unit or a permanent installation used in the open air, electric pump sets with a closed canopy are growing in popularity every year. ...

Jun. 19, 2016

By BBA Pumps

Project: Classroom building Client: Ringwood School Completed: February 2015 Floor Area: 344m² Duration: 12 Weeks Value: £500,000 Turnkey service elements completed: ...

Jan. 31, 2015

By Modulek

A good method for sampling reflectance of vegetation canopies is to connect a flexible, lightweight fiber optic cable (also referred to as “Foreoptic”) of a desired length to the detector. This requires a fiber optic with an SMA type connector at one end (to thread on to the detector) and a foreoptic with a defined field-of-view (FOV) at the other end (to limit the field of view to a ...

Jun. 14, 2012

By PP Systems

Project Name: Sarducci’s Restaurant Product: Gravelpave2 permeable parking lot Application: Parking City: San Juan Capistrano ...

Jan. 13, 2011

By Invisible Structures, Inc.

Nitrogen available to support corn (Zea mays L.) production can be highly variable within fields. Canopy reflectance sensing for assessing crop N health has been proposed as a technology to base side-dress variable-rate N application. Objectives of this research were to evaluate the use of active-light crop-canopy reflectance sensors for assessing corn N need, and derive the N fertilizer rate ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

Eastern gamagrass [Tripsacum dactyloides (L.) L.] (EG), a native warm-season perennial grass, lacks evaluation for use in grazing systems. Our objective was to test EG in a 4-yr experiment to estimate forage mass (FM) that maximizes steer (Bos taurus) performance and pasture productivity. Pasture canopy characteristics, diet selection by grazing steers, and stand persistence from EG continuously ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

Within-field variability of corn (Zea mays L.) N need calls for development of precision fertilizer application strategies. One approach many are investigating is in-season canopy reflectance sensing. Justification for this strategy partly rests with the premise it will improve N use and reduce N loss from fields. The objective of this study was to determine the potential environmental benefits ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

In nitrogen (N) limited ecosystems fertilization by increases in N deposition may enhance plant growth and thus impact carbon (C) sequestration. However in many experimental N fertilization experiments that test this interaction, soils and not plants are the main fate of additional N. A key methodological feature in many N deposition-C sequestration experiments is the addition of N directly to ...

May 31, 2009

By University of Maine

The detailed processes in photosynthesis are complicated and hard to model. In many cases, however, it’s possible to simplify the model by focusing on one or more of the limitations to assimilation. Carbon Assimilation Simplified: Light and WaterIn simplest terms, carbon assimilation involves the chemical transformation of carbon dioxide and water to carbohydrate and oxygen within the leaves of ...

Mar. 26, 2009

By METER Group, Inc.

Growth of alfalfa (Medicago sativa L.) following the correction of a water deficit will depend in part on the characteristics of the canopy grown during the water deficit. The current study was undertaken to determine the extent to which canopy structure and photosynthetic capacity are affected in alfalfa plants regrowing following defoliation while exposed to a water deficit. The effects of five ...

Mar. 16, 2009

By Soil Science Society of America (SSSA)

Active canopy sensors can be used to assess corn (Zea mays L.) N status and direct spatially-variable in-season N application. The goal of this study was to determine optimal sensor spacing for controlling whole- and/or split-boom N application scenarios for a hypothetical 24-row applicator. Sensor readings were collected from 24 consecutive rows at eight cornfields during vegetative growth in ...

Jan. 7, 2009

By Soil Science Society of America (SSSA)

With the increasing cost of fertilizer N, there is a renewed emphasis on developing new technologies for quantifying in-season N requirements for corn (Zea mays L.). The objectives of this research are (i) to evaluate different vegetative indices derived from an active reflectance sensor in estimating in-season N requirements for corn, and (ii) to consider the influence of the N:Corn price ratio ...

Oct. 20, 2008

By Soil Science Society of America (SSSA)

The distribution of chemical species in desert soils is a complex function of atmospheric inputs, rock weathering, chemical equilibria, soil leaching, and plant cycling. In this study of the surface 1 m of desert soils at the Nevada Test Site, we examined the distribution of soluble soil elements beneath plant canopies and in intershrub zones. We extracted water-soluble chemical species using ...

Sep. 29, 2008

By Soil Science Society of America (SSSA)

Reductions in potato (Solanum tuberosum L.) canopy growth are observed with mild water stress. Potato growth is enhanced by elevated atmospheric carbon dioxide ([CO2]), but interactions of [CO2] and water stress on canopy formation and dry matter partitioning have not been studied. Two soil-plant-atmosphere research (SPAR) experiments were conducted at 370 or 740 µmol mol–1 [CO2] and six ...

Jul. 4, 2008

By Soil Science Society of America (SSSA)

Determining when to dig peanut (Arachis hypogea L.) is complicated because of its indeterminate growth habit. Pod mesocarp color is often used an indicator of pod maturation. However, this process is time consuming and is usually based on a relatively small subsample of pods from peanut fields. Research was conducted during 2003–2005 to determine if reflectance of the peanut canopy, using ...

Feb. 25, 2008

By Soil Science Society of America (SSSA)

A multi-layer model, combining Lagrangian dispersion at the canopy level with Ohm's Law analogy at the leaf level, was used in numerical simulations to assess the leaf-to-canopy scale translation of surface resistances. The model produced unique profiles of fluxes and scalar concentrations that satisfied both the dispersion and leaf models. Environmental factors and canopy architecture were ...

Oct. 14, 2007

By Soil Science Society of America (SSSA)

Understanding patterns of ecosystem properties is important if we are to effectively monitor ecosystem change due to a variety of reasons (e.g. global changes, human management). Remote sensing provides a great tool for monitoring the earth's surface at different temporal and spatial scales. Patterns of vegetation and biodiversity dynamics are important ecosystem properties, with strong links to ...

Aug. 2, 2006

By PP Systems

The UniSpec-SC, commonly referred to as a “Reflectometer”, is a single channel, field portable instrument designed for measurement of leaf/canopy reflectance. It features an innovative user interface with integral computer and large, full color LCD, built-in light source and extensive range of accessories for measurement on individual leaves (including needles) and vegetation. It is a ...

Mar. 7, 2006

By PP Systems