1,312 research outputs found
Entrevista Richard Blair
No full textRichard Blair é filho do autor George Orwell e presidente da Orwell Society.Richard Blair is the son of author George Orwell and president of the Orwell Society
Topobathymetric 3D model reconstruction of shallow water bodies through remote sensing, GPS, and bathymetry
No full textSince there are no mathematical models that can calculate the Laguna de Bustillos’ water storage levels, water balance requires this data to understand the connectivity between this water body and the Cuauhtemoc aquifer. This article presents a new three-dimensional reconstruction technique based on a time series of multispectral remote sensing images, bathymetry, a topographic survey with high precision GPS, and regional contours. With the images of Landsat ETM+/OLI and Sentinel 2A from 2012 to 2013, 2016, and 2017, the contours of the water surface were extracted using the MNDWI and were associated with an elevation received from GPS. An Autonomous Surface Vehicle was also used to obtain the bathymetry of the lake. A topographic survey was carried out using GPS in populated areas, and the contour lines extracted from the INEGI Continuous Elevations Model 3.0. A DEM was constructed using ArcGIS 10.5.1, and surfaces and volumes were calculated at different elevations and compared with 16 Landsat TM/ETM+/OLI multispectral images from 1999 to 2018. The results showed that the mean of the average intersection area between the test images and the area extracted from the 3D model is above 90.9% according to the confidence interval, kappa overall accuracy 95.2–99.7%, and a coefficient 89.9–99.3%. This model proved to be very accurate on a regional scale when the water level exceeded 1971.32 meters above mean sea level and useful to evaluate and administer water resources
Single-input, multiple-output iterative algorithm for the volume, area, elevation, and shape calculation using 3D topobathymetric models
No full textMost methods for estimating the morphometric values of water bodies use equations derived from hypsographic curves or digital terrain models (DTMs) that relate depth, volume (V), and area (A), and that model the uncertainty inherent in the complex underwater morphology. This work tests the performance (precision and processing time) of an algorithm to calculate morphometric parameters of a lake that uses bathymetry and topography of the surrounding water body area. The projection of the water surface height (H) on each DTM pixel generates a water column with intrinsic attributes such as volume and area.
The process is replicated among all cells and estimates the total area and volume of the water body. If the V or A is the
input data, an algorithm that iterates height values is used to generate the new data, which is compared to the entered
value that functions as a reference. If the difference between the reference value and the calculated value is less than an
error threshold, the iteration stops, and the maximum and average depths are calculated. The raster and the shape
that represent the body of water are created. The crosscomparison of H-V-A showed that there is an error between
0.0034% and 0.000039% when any of the parameters are used as input data. Performance tests determined that pixel
dimensions are directly proportional to the processing time for each iteration. The results of the implementation of this
algorithm were satisfactory since, for the DTM of Bustillos Lake, Chihuahua, Mexico, the simulation took less than 17
seconds in at most 22 iterations
Deception and Britain's road to war in Iraq
No full textEver since the 2003 invasion of Iraq, there has been a widely shared public perception in the UK and beyond that the British government lied in making the case for war. One major theme has been the view that the Blair government lied about the strength of the intelligence about alleged Iraqi weapons of mass destruction (WMD) and the extent of the WMD capabilities claimed by that intelligence. A second theme that has received less attention has been the view that the Blair government lied in claiming that its actions at the United Nations (UN) were aimed at securing peaceful Iraqi compliance with its disarmament obligations. Instead, most think that the UK was actually committed to a policy of regime change by force and did not want the ‘UN route’ to produce a peaceful outcome. The article argues that the conceptual focus of the discussion needs to be broadened from lying to also considering deception by omission and deception by distortion as part of a campaign of organized political persuasion. It argues that, on the WMD intelligence, it is now apparent that a campaign of deceptive organized political persuasion was conducted by UK officials. With respect to the UN route, there is mounting evidence that the Blair government ran a campaign of deception on this issue as well to pave Britain’s road to war in Iraq
Lottie Blair Parker, author, playwrite
No full textLottie Blair Parker, author, playwriteTo order a reproduction, inquire about permissions, or for information about prices see:
http://www.lib.washington.edu/specialcollections/services/reproduction/reproduction
Please cite the Order NumberScanned at 600ppi with an Epson 20000 flatbed scanner. Image then rotated, cropped, level-adjusted, and sharpened using Photoshop CS3. Converted to a JPEG2000 image upon ingest into CONTENTdm
Comparison of evaporation estimates from the REEM and EEFlux models in a shallow water body. Case: Bustillos Lake, Chihuahua, Mexico
No full textWaterbody evaporation (E) within endorheic basins in semiarid areas is a critical factor in determining the water balance. Accurate E measurements can provide valuable information for the sustainable management of water resources in the face of climate change scenarios. However, evaporation can be estimated through methods as efficient as Penman using variables from agroclimatic stations, such as wind velocity, net radiation, relative humidity, and air temperature, which have a
spatiotemporal variability. Within the evaporation models based on remote sensing (RS) is the surface energy balance model (SEB), which has been applied to different methodologies and extends the measurements of evapotranspiration (ET) at a regional level. SEB-based methodologies use physical principles with minimal weather data requirements to estimate ET. Hence, this article compares two methodologies that estimate evaporation using RS: The Regional Evapotranspiration Estimate Model (REEM) and the Earth Engine Evapotranspiration Flux (EEFlux). Comparing ET measurements obtained from REEM and EEFlux for seven Landsat OLI scenes in the agriculture cycle of April to September applied against the simplified Penman equation showed that the REEM performed better (d=94%) than the EEFlux (d=68%) for the indicated period. Although the comparison of
REEM and EEFlux show accurate E measurements (REEM), gridded weather data (EEFlux) needs to improve, increasing the scale using local information
Natasha Bowens-Blair: author of the Color of Food: keynote and book signing
No full textFilmed by Colorado State University. Lory Student Center.Natasha Bowens Blair, author of The Color of Food, speaks at the Lory Student Center at Colorado State University, October 16, 2021. The book explores ways we can cultivate new ideas about food justice, land, bringing people together, and joining in a conversation about race and identity, both locally and around the world. Introduction by James Prichett
Blair Humphrey's secret
No full textBlair Humphreys’s Secret is about a misfit girl named Blair Humphreys. Blair’s father has died, mother is insane, and is routinely ridiculed by her classmates. Blair herself is extremely tall for her age and quite thin. She is a brooding loner. At the age of six, after having lived alone with her lunatic mother for several months, Blair’s grandmother (whom she calls “Gram”) comes to live with her. Blair hadn’t seen Gram since she was about four years old. Gram had flitted in and out of Blair’s life, showing up between research projects. When the story begins, Blair is twelve years old. It is
Halloween night and there appear to be monsters lurking in the bushes outside Blair’s home. In reality, the “monsters” are Blair’s classmates—the ones who have been tormenting her. They have come to witness the specter that appears on stormy nights on
the roof of the Humphreys’s home. The specter is Blair’s mother, who raves and mumbles on the rooftop. Blair and Gram share a tender relationship. Gram is always trying to nurture Blair and help her to confront her demons. Gram is forever trying to build up Blair’s confidence. Gram is a mysterious figure. She has spent most of her life as an entomologist and archaeologist, traveling the world from one research project to
another. The same night the “monsters” haunt Blair’s garden, Gram gives Blair a mysterious ring with a blue star sapphire in its setting. Blair quickly discovers that the ring transports her into a strange cave in the woods near her home. The cave walls glow with a blue light. Blair tries to discover what other secrets the ring holds, but her efforts are in vain. One day her tormentors, the same gang that haunted her garden, witness her
disappearing. They wait for her to return and force her to take them to the cave. Once there, Blair soon discovers that her tormentors hold the key to unlocking the potential of the ring and the cave.M.A.by Bryan Paul Hoffma
Browning, Thomas Blair
No full textThomas Blair Browning, lawyer and author, born St. John's 1848. Notes, both loose and entered in a ledger on 1) the Franco-Newfoundland controversy and the - Newfoundland fishery, ca. 1895 and 2) artificial fish breeding. Includes a letter from Percy William Bunting, London, England, December 1895
Henri Temianka Correspondence; (blair)
No full textThis collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/1200/thumbnail.jp
- …
