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Evaluation of the Simard et al. 2011 Global Canopy Height Map in Boreal Forests

Wei Yang, Akihiko Kondoh
2020 Remote Sensing  
A number of efforts have been made to overcome the limitation of global LiDAR datasets to generate wall-to-wall canopy height products, among which a global satellite product produced by Simard et al.  ...  (2011) (henceforth, the Simard-map) has been the most widely applied.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs12071114 fatcat:x5m5sopm3zbktg6ozbagr257si

SMOS retrieval over forests: Exploitation of optical depth and tests of soil moisture estimates

C. Vittucci, P. Ferrazzoli, Y. Kerr, P. Richaume, L. Guerriero, R. Rahmoune, G. Vaglio Laurin
2016 Remote Sensing of Environment  
Results presented in this paper were obtained using the last 620 version of the algorithm.  ...  Moreover, the comparison between the VOD and the height of the forest shows good spatial and temporal stability, and the r 2 correlation coefficient is within a 0.59-0.69 range.  ...  (Simard et al., 2011) We compared the retrieved values of VOD with the forest heights provided by the global map of Simard et al. (2011) .  ... 
doi:10.1016/j.rse.2016.03.004 fatcat:herphnb56zcrfbapqeoheu62fm

It is premature to test older drivers with the SIMARD-MD

Michel Bédard, Shawn Marshall, Malcolm Man-Son-Hing, Bruce Weaver, Isabelle Gélinas, Nicol Korner-Bitensky, Barbara Mazer, Gary Naglie, Michelle M. Porter, Mark J. Rapoport, Holly Tuokko, Brenda Vrkljan
2013 Accident Analysis and Prevention  
if the SIMARD-MD is biased by level of education as many cognitive tools are.  ...  The recommendations that would be made based on the SIMARD-MD scores were based on published cut-off values suggested by the authors of the tool.  ...  The SIMARD-MD is a shorter derivative of the DemTect (Kalbe et al., 2004) .  ... 
doi:10.1016/j.aap.2013.04.001 pmid:23628257 fatcat:72tq6gdzgvdtvf6mwerunxeg4i

Discovering forest height changes based on spaceborne lidar data of ICESat-1 in 2005 and ICESat-2 in 2019: a case study in the Beijing-Tianjin-Hebei region of China

Tong Sun, Jianbo Qi, Huaguo Huang
2020 Forest Ecosystems  
Evaluations of unchanging areas for data consistency of two products show that the bias values decreased significantly from line-transect-level (− 8.0 to 6.2 m) to site-level (− 1.5 to 1.1 m), while RMSE  ...  Background The assessment of change in forest ecosystems, especially the change of canopy heights, is essential for improving global carbon estimates and understanding effects of climate change.  ...  Availability of data and materials The datasets used and analyzed during the current study are available from the corresponding author on reasonable request.  ... 
doi:10.1186/s40663-020-00265-w fatcat:m3umkpfnpjfgnlw3tzdlfphzza

When replication teaches more than the original experiment — the saga of the unknown unknown

J. Marc Simard, Volodymyr Gerzanich
2012 Experimental Neurology  
Phillip Popovich and colleagues, and how their initial attempt at replication led to the unexpected finding that anisotropy of spinal cord tissues strongly influences the patterns of both primary and secondary  ...  In this commentary, we reflect on the independent replication of our original experiment by Dr.  ...  Acknowledgments This work was supported by grants to JMS from the Department of Veterans Affairs (Baltimore, MD), the National Institute of Neurological Disorders and Stroke (NS060801), and the Christopher  ... 
doi:10.1016/j.expneurol.2011.03.023 pmid:22078759 pmcid:PMC3278910 fatcat:aj3toskgqbhi7pxlqwppujv6ve

Evaluating post-outbreak management effects on future fuel profiles and stand structure in bark beetle-impacted forests of Greater Yellowstone

Daniel C. Donato, Martin Simard, William H. Romme, Brian J. Harvey, Monica G. Turner
2013 Forest Ecology and Management  
to evaluate how fuel profiles, stand structure, and biomass carbon storage are influenced by various post-outbreak fuel treatments (removal of beetle-killed trees ['salvage'] followed by either no treatment  ...  Projected effects on fine fuels, both in the canopy and surface layers, were surprisingly minor or short-lived; natural fall and decay of fine material in unharvested stands led to the convergence of most  ...  Acknowledgements We thank the US Forest Service FVS help desk for consistent and timely assistance with the modeling. We received invaluable input  ... 
doi:10.1016/j.foreco.2013.04.022 fatcat:bqn5sznfgbc6xirlgahcpzcpy4

Do Bark Beetle Outbreaks Increase Wildfire Risks in the Central U.S. Rocky Mountains? Implications from Recent Research

Scott H. Black, Dominik Kulakowski, Barry R. Noon, Dominick A. DellaSala
2013 Natural areas journal  
) in Colorado, Wyoming, and other areas Kulakowski et al. 2003; Bigler et al. 2005; Kulakowski and Veblen 2007; Jenkins et al. 2008; Simard et al. 2008 Simard et al. , 2011 .  ...  than in stands not affected by beetles (Simard et al. 2011 ).  ... 
doi:10.3375/043.033.0107 fatcat:vajbv5xarbh47bajmiakbgqyt4

The TRPM4 channel inhibitor 9-phenanthrol

R Guinamard, T Hof, C A Del Negro
2014 British Journal of Pharmacology  
Subsequent studies performed on other ion channels confirm the specificity of the drug for TRPM4.  ...  The phenanthrene-derivative 9-phenanthrol is a recently identified inhibitor of the transient receptor potential melastatin (TRPM) 4 channel, a Ca 2+ -activated non-selective cation channel whose mechanism  ...  Conflicts of interest The authors state no conflict of interest. BJP R Guinamard et al.  ... 
doi:10.1111/bph.12582 pmid:24433510 pmcid:PMC3966741 fatcat:bunrn6r5pnhudeb4jvaybvoddu

The assessment of mangrove biomass and carbon in West Africa: a spatially explicit analytical framework

Wenwu Tang, Wenpeng Feng, Meijuan Jia, Jiyang Shi, Huifang Zuo, Carl C. Trettin
2015 Wetlands Ecology and Management  
The resulting spatially explicit distributions of mangrove biomass and carbon hold great potential in guiding the strategic planning of large-scale field-based assessment of mangrove forests.  ...  This study demonstrates the utility of online geospatial data and spatial analysis as a feasible solution for estimating the distribution of mangrove biomass and carbon at larger or smaller scales.  ...  The contents are the responsibility of the authors and do not necessarily reflect the opinion of USAID or the U.S. Government. We appreciate the help from Dr. Marc Simard and Dr.  ... 
doi:10.1007/s11273-015-9474-7 fatcat:ppomxmi2hzhhzmls4z6niqwu6i

Letter by Simard et al Regarding Article, "Sulfonylurea Use Before Stroke Does Not Influence Outcome"

J. M. Simard, T. A. Kent, H. Kunte
2011 Stroke  
Letters must reference a Stroke published-ahead-of-print article or an article printed within the past 3 weeks. The maximum length is 750 words including no more than 5 references and 3 authors.  ...  Stroke welcomes Letters to the Editor and will publish them, if suitable, as space permits.  ...  The more pertinent question is whether the sulfonylurea hypothesis has yet been sufficiently evaluated to justify progression to a clinical trial.  ... 
doi:10.1161/strokeaha.111.620666 pmid:21597017 fatcat:tegx6ww2kngtnf4de2xw475dly

Common Mycorrhizae Network: A Review of the Theories and Mechanisms Behind Underground Interactions

Aline Fernandes Figueiredo, Jens Boy, Georg Guggenberger
2021 Frontiers in Fungal Biology  
of such resources into the CMN.  ...  Here, we report and critically discuss the most recent findings on studies aiming to evaluate and quantify resources translocation between plants sharing a CMN and predict the pattern that drives the movement  ...  for receiver plant survival and development (Wu et al., 2001; Deslippe and Simard, 2011; Klein et al., 2016) .  ... 
doi:10.3389/ffunb.2021.735299 fatcat:6xady4xznzfe5kttrciyf4gkxy

Pathophysiology and treatment of cerebral edema in traumatic brain injury

Ruchira M. Jha, Patrick M. Kochanek, J. Marc Simard
2018 Neuropharmacology  
After treatment of mass lesions in severe TBI, an important focus of acute neurocritical care is evaluating and managing the secondary injury process of CE and resultant intracranial hypertension.  ...  While an exhaustive discussion of all pathways with putative contributions to CE is beyond the scope of this review, the roles of some key contributors are highlighted, and references are provided for  ...  including TBI (Patel et al., 2010; Simard et al., 2006 Simard et al., , 2009 Simard et al., , 2012b .  ... 
doi:10.1016/j.neuropharm.2018.08.004 pmid:30086289 pmcid:PMC6309515 fatcat:3okxdq4fx5cyxeg26prxsnrwsm

A new 500-m resolution map of canopy height for Amazon forest using spaceborne LiDAR and cloud-free MODIS imagery

Yoshito Sawada, Rempei Suwa, Keiji Jindo, Takahiro Endo, Kazuo Oki, Haruo Sawada, Egidio Arai, Yosio Edemir Shimabukuro, Carlos Henrique Souza Celes, Moacir Alberto Assis Campos, Francisco Gasparetto Higuchi, Adriano José Nogueira Lima (+3 others)
2015 International Journal of Applied Earth Observation and Geoinformation  
spaceborne LiDAR data with different spatial modeling method and explanatory variables 13 (Simard et al., 2011).  ...  previously developed D -H model involving environmental and structural factors as explanatory 11 variables (Feldpausch et al., 2011), and (3) a previously developed canopy height map derived from 12 the  ...  The difference between the maps was negatively correlated with the 420 percent of Tree Cover (MOD44B, Townshend et al., 2011) involved in the map of Simard et al. 421 (2011) , i.e. canopy height estimate  ... 
doi:10.1016/j.jag.2015.04.003 fatcat:5w745gez3jaxxohb5y5ozieztq

Estimating Mangrove Canopy Height and Above-Ground Biomass in the Everglades National Park with Airborne LiDAR and TanDEM-X Data

Emanuelle A. Feliciano, Shimon Wdowinski, Matthew D. Potts, Seung-Kuk Lee, Temilola E. Fatoyinbo
2017 Remote Sensing  
We estimated mangrove canopy height and AGB in the ENP using Airborne LiDAR/Laser (ALS) and TanDEM-X (TDX) datasets acquired between 2011 and 2013.  ...  The comparison of ALS and TDX canopy height observations yielded an R 2 = 0.85 and Root Mean Square Error (RMSE) = 1.96 m.  ...  The funding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.  ... 
doi:10.3390/rs9070702 fatcat:65vhojlxkvdethfxa67wjwejwa

A Neural Network based Approach to Automatic Post-Editing

Santanu Pal, Sudip Kumar Naskar, Mihaela Vela, Josef van Genabith
2016 Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)  
Furthermore, human evaluation shows that the NNAPE generated PE translations are much better than the original MT output.  ...  APE translations produced by NNAPE show statistically significant improvements of 3.96, 2.68 and 1.35 BLEU points absolute over the original MT, phrase-based APE and hierarchical APE outputs, respectively  ...  They have shared their data for the experiments and enabled the manual evaluation of our system.  ... 
doi:10.18653/v1/p16-2046 dblp:conf/acl/PalNVG16 fatcat:gtfxfrrcyjhjlp7mormlfaxusm
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