Richard Kelly
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View article: A prototype passive microwave retrieval algorithm for tundra snow density
A prototype passive microwave retrieval algorithm for tundra snow density Open
Snow density data are important for a variety of applications, yet, to our knowledge, there are few methods for estimating spatiotemporal varying snow density in the Arctic environment. This research proposes a passive microwave retrieval …
View article: Estimating in situ compression parameters from remoulded and field test data
Estimating in situ compression parameters from remoulded and field test data Open
Conventional sampling and testing procedures cause disturbance of soft clays during sampling, transport and testing resulting in inaccurate measurement of in situ compression parameters. A pilot study has been performed to assess the feasi…
View article: Stereo bathymetry to monitor small seasonal agriculture water ponds in ungauged areas
Stereo bathymetry to monitor small seasonal agriculture water ponds in ungauged areas Open
Small reservoirs represent a critical water supply to farmers across semi-arid regions, but their hydrological modelling suffers from data scarcity and highly variable and localised rainfall intensities. Over 200,000 ancient rainwater harv…
View article: A Prototype Passive Microwave Retrieval Algorithm for Tundra Snow Density
A Prototype Passive Microwave Retrieval Algorithm for Tundra Snow Density Open
Snow density data are important for a variety of applications, yet, to our knowledge, there are no robust methods for estimating spatiotemporal varying snow density in the Arctic environment. The current understanding of snow density varia…
View article: Multi-frequency SAR measurements to advance snow water equivalent algorithm development
Multi-frequency SAR measurements to advance snow water equivalent algorithm development Open
Snow mass (commonly expressed as snow water equivalent – SWE) is the only component of the water cycle without a dedicated Earth Observation mission. A number of missions currently under development, however, will provide previously …
View article: Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site
Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site Open
Estimates of winter (snow-covered non-growing season) CO2 fluxes across the Arctic region vary by a factor of 3.5, with considerable variation between measured and simulated fluxes. Measurements of snow properties, soil temperatures, and n…
View article: Supplementary material to "Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site"
Supplementary material to "Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site" Open
eddy covariance data PI), and Gabriel Hould Gosselin (ghouldgosselin
View article: Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site
Simulating net ecosystem exchange under seasonal snow cover at an Arctic tundra site Open
Estimates of winter (snow-covered non-growing season) CO2 fluxes across the Arctic region vary by a factor of three and a half, with considerable variation between measured and simulated fluxes. Measurements of snow properties, soil temper…
View article: Advancing science readiness for a new snow mass radar mission
Advancing science readiness for a new snow mass radar mission Open
Environment and Climate Change Canada (ECCC) and the Canadian Space Agency (CSA) continue to advance a new satellite Ku-band radar mission focused on providing moderate resolution (500 m) information on seasonal snow mass. Like many region…
View article: New opportunities for low-cost LiDAR-derived snow depth estimates from a consumer drone-mounted smartphone
New opportunities for low-cost LiDAR-derived snow depth estimates from a consumer drone-mounted smartphone Open
Snow has significant impacts on springtime flooding, water resource management practices and the regional water-energy budget. In situ observations are considered some of the highest quality measurements of snow depth available, and are us…
View article: Impact of measured and simulated tundra snowpack properties on heat transfer
Impact of measured and simulated tundra snowpack properties on heat transfer Open
Snowpack microstructure controls the transfer of heat to, as well as the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two winters (March and November 2018, January …
View article: Review article: Global monitoring of snow water equivalent using high-frequency radar remote sensing
Review article: Global monitoring of snow water equivalent using high-frequency radar remote sensing Open
Seasonal snow cover is the largest single component of the cryosphere in areal extent, covering an average of 46 × 106 km2 of Earth's surface (31 % of the land area) each year, and is thus an important expression and driver of the Earth's …
View article: Fungi of parks, forests and reserves of New Jersey (2007-2019)
Fungi of parks, forests and reserves of New Jersey (2007-2019) Open
This occurence list is a result of 210 forays conducted by the New Jersey Mycological Association, USA (www.njmyco.org). NJMA is a non-profit citizen science organization whose aims are to provide a means for sharing ideas, experiences, kn…
View article: Using Satellite Observations to Support Water Management in South India
Using Satellite Observations to Support Water Management in South India Open
<p>Small reservoir tank structures across South India form part of a complex ancient traditional water distribution system that has historically supplied irrigation to cropped fields during the dry-season. Despite their historical si…
View article: Evaluation of LiDAR-Derived Snow Depth Estimates From the iPhone 12 Pro
Evaluation of LiDAR-Derived Snow Depth Estimates From the iPhone 12 Pro Open
Snow is a critical contributor to the global water-energy budget with impacts on springtime flooding and water resource management practices. Laser altimetry [light detection and ranging (LiDAR)] is a remote-sensing technique that has demo…
View article: TVC Array
TVC Array Open
Matlab Array of TVC Snowpit Data from "Impact of measured and simulated tundra snowpack properties on heat transfer", Dutch et al. (2021). [DOI Pending]. Version 2.0.Code and other data at: https://github.com/V-Dutch/TVCSnowCLMAbstract Sno…
View article: TVC Array
TVC Array Open
Matlab Array of TVC Snowpit Data from "Impact of measured and simulated tundra snowpack properties on heat transfer", Dutch et al. (2021). [DOI Pending]. Version 2.0.Code and other data at: https://github.com/V-Dutch/TVCSnowCLMAbstract Sno…
View article: Comment on tc-2021-313 by referee#2
Comment on tc-2021-313 by referee#2 Open
Abstract. Snowpack microstructure controls the transfer of heat to, and the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two different winters (March and November 2…
View article: Impact of measured and simulated tundra snowpack properties on heat transfer
Impact of measured and simulated tundra snowpack properties on heat transfer Open
Snowpack microstructure controls the transfer of heat to, and the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two different winters (March and November 2018, Janua…
View article: Review Article: Global Monitoring of Snow Water Equivalent using High Frequency Radar Remote Sensing
Review Article: Global Monitoring of Snow Water Equivalent using High Frequency Radar Remote Sensing Open
Seasonal snow cover is the largest single component of the cryosphere in areal extent, covering an average of 46 million square km of Earth's surface (31 % of the land area) each year, and is thus an important expression of and driver of t…
View article: The influence of tree transmissivity variations in winter on satellite snow parameter observations
The influence of tree transmissivity variations in winter on satellite snow parameter observations Open
The ability to correct for the influence of forest cover is crucial for retrieval of surface geophysical parameters such as snow cover and soil properties from microwave remote sensing. Existing correction approaches to brightness temperat…
View article: TVC_Array_09.2021.zip
TVC_Array_09.2021.zip Open
Matlab Array of TVC Snowpit Data from "Impact of measured and simulated tundra snowpack properties on heat transfer", Dutch et al. (2021). [DOI Pending]. Code and other data at: https://github.com/V-Dutch/TVCSnowCLMAbstract Snowpack micros…
View article: Evaluating Airborne Ku-Band Radar Altimetry over LandfastFirst-Year Sea Ice
Evaluating Airborne Ku-Band Radar Altimetry over LandfastFirst-Year Sea Ice Open
Recent studies have challenged the assumption that Ku-band radar used by the CryoSat-2 altimeter fully penetrates the dry snow cover of Arctic sea ice. There is also uncertainty around the proper technique for handling retracker threshold …
View article: Evaluation of long-term Northern Hemisphere snow water equivalent products
Evaluation of long-term Northern Hemisphere snow water equivalent products Open
Nine gridded Northern Hemisphere snow water equivalent (SWE) products were evaluated as part of the European Space Agency (ESA) Satellite Snow Product Intercomparison and Evaluation Exercise (SnowPEx). Three categories of datasets were ass…
View article: Regression Downscaling of Coarse Resolution Globsnow Snow Water Equivalent Estimates in the Red River Basin
Regression Downscaling of Coarse Resolution Globsnow Snow Water Equivalent Estimates in the Red River Basin Open
<p>The spatial and temporal heterogeneity of seasonal snow and its impact on socio-economic and environmental functionality make accurate, real-time estimates of snow water equivalent (SWE) important for hydrological and climatologic…
View article: Assessing current tank storage state from multi-mission satellite observations to support water management in southern India
Assessing current tank storage state from multi-mission satellite observations to support water management in southern India Open
<p>Small reservoirs represent a critical water supply to farmers across semi-arid regions. Managing these water resources is challenging because hydrological forecasting suffers from sparse rainfall measurements that do not capture h…
View article: Simulating the Influence of Temperature on Microwave Transmissivity of Trees During Winter Observed by Spaceborne Microwave Radiometery
Simulating the Influence of Temperature on Microwave Transmissivity of Trees During Winter Observed by Spaceborne Microwave Radiometery Open
Forest transmissivity is a key parameter for understanding spaceborne and airborne observations of the Earth's land surface because not only does it influences the proportion of subcanopy upwelling microwave emission penetrating through th…
View article: Evaluation of long term Northern Hemisphere snow water equivalent products
Evaluation of long term Northern Hemisphere snow water equivalent products Open
Seven gridded northern hemisphere snow water equivalent (SWE) products were evaluated as part of the European Space Agency (ESA) Satellite Snow Product Inter-comparison and Evaluation Exercise (SnowPEx). Three categories of datasets were a…
View article: Derivation and Evaluation of a New Extinction Coefficient for Use With the n-HUT Snow Emission Model
Derivation and Evaluation of a New Extinction Coefficient for Use With the n-HUT Snow Emission Model Open
In this study, snow slab data collected from the Arctic Snow Microstructure Experiment were used in conjunction with a six-directional flux coefficient model to calculate individual slab absorption and scattering coefficients. These coeffi…