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Articles 31 - 60 of 177
Full-Text Articles in Environmental Sciences
Nitrogen Transport Through A Sub-Alpine Lake: Bull Trout Lake Whole Ecosystem 15N Tracer Study, David Epstein, Wayne Wurtsbaugh
Nitrogen Transport Through A Sub-Alpine Lake: Bull Trout Lake Whole Ecosystem 15N Tracer Study, David Epstein, Wayne Wurtsbaugh
David Epstein
No abstract provided.
Agricultural Advisors: A Receptive Audience For Weather And Climate Information?, Linda Stalker Prokopy, Tonya Haigh, Amber Saylor Mase, Jim Angel, Chad Hart, Cody Knutson, Maria Carmen Lemos, Yun Jia Lo, Jean Mcguire, Lois Wright Morton, Jennifer Perron, Dennis Todey, Melissa Widhalm
Agricultural Advisors: A Receptive Audience For Weather And Climate Information?, Linda Stalker Prokopy, Tonya Haigh, Amber Saylor Mase, Jim Angel, Chad Hart, Cody Knutson, Maria Carmen Lemos, Yun Jia Lo, Jean Mcguire, Lois Wright Morton, Jennifer Perron, Dennis Todey, Melissa Widhalm
Drought Mitigation Center: Faculty Publications
As the climate in the midwestern United States becomes increasingly variable because of global climate change, it is critical to provide tools to the agricultural community to ensure adaptability and profitability of agricultural cropping systems. When used by farmers and their advisors, agricultural decision support tools can reduce uncertainty and risks in the planning, operation, and management decisions of the farm enterprise. Agricultural advisors have historically played a key role in providing information and guidance in these decisions. However, little is known about what these advisors know or think about weather and climate information and their willingness to incorporate this …
Climate Change Up Close And Personal: Impacts On Hampton Roads Region, Russell De Young
Climate Change Up Close And Personal: Impacts On Hampton Roads Region, Russell De Young
November 16, 2012: Best Practices for Adapting to Sea Level Rise and Flooding
No abstract provided.
Judy Reservoir Monitoring Project 2012 Final Report, Robin A. Matthews, Joan Vandersypen
Judy Reservoir Monitoring Project 2012 Final Report, Robin A. Matthews, Joan Vandersypen
Judy Reservoir
The purpose of this study was to identify and count the phytoplankton and measure chlorophyll, total nitrogen, and total phosphorus levels in water samples collected from Judy Reservoir. Water quality and algal data have been collected on a weekly basis since October 2006; annual reports have been sent to the Skagit Public Utility District No. 1 in 2007, 2008, 2010 (January and December), and 2011.
Climate Change And International Trade: Conflict Or Opportunity?, Joshua Meltzer
Climate Change And International Trade: Conflict Or Opportunity?, Joshua Meltzer
Brookings Scholar Lecture Series
How can international trade negotiations provide incentives or limit progress on domestic and international climate change policy? This presentation will explore how trade negotiations can reduce trade barriers to low carbon produced goods, the implications of the World Trade Organization (WTO) and free trade agreements, and how pricing carbon to reduce greenhouse gas emissions can lead to international competitiveness and carbon leakage concerns. This presentation will consider the implications of the November 6th election on short and long-term climate policy initiatives.
Climate Change And The Water Crisis In Israel, Lauren Deutsch
Climate Change And The Water Crisis In Israel, Lauren Deutsch
Natural Resources Management and Environmental Sciences
Israel’s water crisis is controlled by the availability and location of water resources that are affected by climate change and geopolitics in southwest Asia. Conflict between Israel and the Palestinian occupied territories in the Gaza Strip and the West Bank have put strains on the allocation of water recourses. The goal of this research was to model how much a change in climate will affect the amount of available freshwater in Israel. Intensive research taken from Israel and the occupied territories was carried out to understand how the amount of precipitation, rainfall, and the rate of evaporation is affected by …
Water: Conserving Our Most Precious Resource, John Holmes Gcvo, Kbe, Cmg
Water: Conserving Our Most Precious Resource, John Holmes Gcvo, Kbe, Cmg
Reports (USI)
This was a thoughtful discussion on a vital and still neglected issue. While there was enough fresh water in the world overall, its distribution did not match that of the global population. Climate change, continuing population growth, urbanisation and altered dietary habits were all exacerbating existing problems of fresh water availability. But there was little new action at national or international level, though local and private sector decisions were making a difference in some places. In the end we might have to take the water to the people rather than expecting the people to go to the water, as had …
Diatoms In Castor Lake (North-Central Washington, Usa) – Proxies Of Climate And Hydrologic Variation, Kelly D. Hollingshead
Diatoms In Castor Lake (North-Central Washington, Usa) – Proxies Of Climate And Hydrologic Variation, Kelly D. Hollingshead
Electronic Thesis and Dissertation Repository
This research provides a high temporal resolution (1 sample / 2-3 years) record of hydrologic variation for the last 2,000 years using a lake sediment record from Castor Lake, a closed-basin system in Washington, USA. The core was dated using 137Cs, 14C, and tephrochronology. Approximately 600 diatoms were identified and enumerated in 198 samples from a Castor Lake freeze core and Livingstone-piston core. A diatom-inference model for salinity was applied to reconstruct fossil diatom salinity. Diatom-inferred salinity for the last century tracked Palmer Drought Severity Index, indicating diatom community composition tracks effective moisture and can be used to …
Tornado Warnings In Three Southern States: A Qualitative Analysis Of Public Response Patterns, William Donner, Havidan Rodriguez, Walter Diaz
Tornado Warnings In Three Southern States: A Qualitative Analysis Of Public Response Patterns, William Donner, Havidan Rodriguez, Walter Diaz
Sociology Faculty Publications and Presentations
Recent research in three Southern states supplied data describing the role community structure and culture played in shaping public response to tornado risks. The following study identifies and describes how residents received, made sense of, and ultimately used information to make decisions about responding to warnings. In addition to a range of theoretical concerns, research was also intended to develop a set of safety policies derived from what the data reveals about the social psychology of risk perception, economic constraints to shelter, and the cultural aspects of response.Data analysis reveals a diverse set of social factors governing community response to …
Impacts Of Climate Change On The Surface Water Balance Of The Central United States, 1984-2007, Bo Dong
Impacts Of Climate Change On The Surface Water Balance Of The Central United States, 1984-2007, Bo Dong
School of Natural Resources: Dissertations, Theses, and Student Research
The climate system and the hydrologic cycle are strongly connected with each other. Understanding the interactions between these two systems is important, since variations in climate can trigger extensive changes in the hydrologic cycle, with significant impacts on agriculture, ecosystems, and society. Observations over the central U.S. in recent decades show numerous changes in climatic variables. This includes decreases in cloud cover and wind speed, increases in air temperature, and seasonal shifts in precipitation rate and rain/snow fraction. To assess the impacts of these variations in climate on the regional water cycle, a terrestrial ecosystem/land surface hydrologic model (Agro-IBIS) is …
Drinking Water Resource Directory, New England Environmental Finance Center
Drinking Water Resource Directory, New England Environmental Finance Center
Sustainable Communities Capacity Building
This document is intended to help local and regional planning agencies, and their constituent water utilities, integrate drinking water infrastructure planning and investments into plans for sustainable development. Resources listed here provide guidance on making land use decisions that protect water resources, setting adequate and sustainable drinking water rates, controlling water loss, funding water infrastructure projects, and managing water utilities.
The directory was developed by the Environmental Finance Center Network through the Capacity Building for Sustainable Communities program funded by the U.S. Department of Housing and Urban Development and the Environmental Protection Agency. Through this program, EFCN is providing capacity …
Demographic Amplification Of Climate Change Experienced By The Contiguous United States Population During The 20th Century, Jason Samson, Dominique Berteaux, Brian Mcgill, Murray Humphries
Demographic Amplification Of Climate Change Experienced By The Contiguous United States Population During The 20th Century, Jason Samson, Dominique Berteaux, Brian Mcgill, Murray Humphries
Publications
Better understanding of the changing relationship between human populations and climate is a global research priority. The 20th century in the contiguous United States offers a particularly well-documented example of human demographic expansion during a period of radical socioeconomic and environmental change. One would expect that as human society has been transformed by technology, we would become increasingly decoupled from climate and more dependent on social infrastructure. Here we use spatially-explicit models to evaluate climatic, socio-economic and biophysical correlates of demographic change in the contiguous United States between 1900 and 2000. Climate-correlated variation in population growth has caused the U.S. …
Bioenergy Harvesting Impacts On Ecologically Important Stand Structure And Habitat Characteristics, Caitlin E. Littlefield, William S. Keeton
Bioenergy Harvesting Impacts On Ecologically Important Stand Structure And Habitat Characteristics, Caitlin E. Littlefield, William S. Keeton
Rubenstein School of Environment and Natural Resources Faculty Publications
Demand for forest bioenergy fuel is increasing in the northern forest region of eastern North America and beyond, but ecological impacts, particularly on habitat, of bioenergy harvesting remain poorly explored in the peer-reviewed literature. Here, we evaluated the impacts of bioenergy harvests on stand structure, including several characteristics considered important for biodiversity and habitat functions. We collected stand structure data from 35 recent harvests in northern hardwood-conifer forests, pairing harvested areas with unharvested reference areas. Biometrics generated from field data were analyzed using a multi-tiered nonparametric uni-and multivariate statistical approach. In analyses comparing harvested to reference areas, sites that had …
Nantucket Shellfish Management Plan, Matthew Herr, Frank Dutra, Tara Riley, Sarah Oktay, Peter Boyce, Doug Smith, Carl Sjolund, Jake Kritzer, Cormac Collier, Dave Fronzuto, Kristin Uiterwyk, Jack Wiggin, Dale Leavitt, Steve Bliven, Allison Novelly, Dan Hellin
Nantucket Shellfish Management Plan, Matthew Herr, Frank Dutra, Tara Riley, Sarah Oktay, Peter Boyce, Doug Smith, Carl Sjolund, Jake Kritzer, Cormac Collier, Dave Fronzuto, Kristin Uiterwyk, Jack Wiggin, Dale Leavitt, Steve Bliven, Allison Novelly, Dan Hellin
Urban Harbors Institute Publications
Nantucket’s shellfisheries are significant both locally and nationally. Locally, commercial and recreational shellfishing are critical to the Island’s history, culture, and economy. Nationally, the Island’s largest commercial shellfishery — the Nantucket bay scallop fishery is one of the last wild-harvest bay scallop fisheries in the country, but there is growing concern over the health of the overall population and the sustainability of the fishery. Given the importance of the shellfisheries on Nantucket and the drastic decline of bay scallop populations elsewhere along the Atlantic coast, there is a compelling interest in ensuring that the Town’s shellfish are managed to sustain …
Droughtscape- Fall 2012, National Drought Mitigation Center
Droughtscape- Fall 2012, National Drought Mitigation Center
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CONTENTS
Director’s report ....................... 1
Updated resources ................... 1
Drought outlook and review... 2
2012 and past droughters..... 4
Summer impacts summary.... 6
Urban planners and drought..... 9
USDM wins CLEAN seal... 10
Meixiu Yu's Chinese SPEI... 11
Ethiopian project..... 12
Mexican VegDRI.... 13
Drought monitor sculpture.... 14
Planning For Sea Level Rise In Portland, Maine Using Robust Decision Making As A Guide, Sadie Lloyd
Planning For Sea Level Rise In Portland, Maine Using Robust Decision Making As A Guide, Sadie Lloyd
Muskie School Capstones and Dissertations
This paper evaluates the potential for Robust Decision Making (RDM) to guide communities preparing for the impacts of climate change, using sea level rise planning in Portland, Maine as a case study. RDM is a problem solving process that considers multiple outcomes and an uncertain future, and focuses on decisions that provide benefits regardless of which future scenarios develop, allowing for the adjustment of decisions over time to accommodate changes in the future. The flexibility of RDM makes it an appropriate model for decision makers and stakeholders unsure how to address impacts of climate change, an issue complicated by numerous …
Catching Air - Those Magnificent Jumping Suwannee Sturgeons, Ken Sulak
Catching Air - Those Magnificent Jumping Suwannee Sturgeons, Ken Sulak
United States Geological Survey: Staff Publications
It starts deep at the bottom of the dark silent river, three to four powerful tail beats and three sharp acoustic clicks. Then, a sudden upturn of the body and the fish explodes upward, 100 pounds going vertical, catching air, lots of air. A good jump can power a big fish, six to nine feet into the air. You have to be quick to get a photo, hang time is only about a second, but an accomplished jump by a big old Suwannee River Gulf Sturgeon is impressive; a magnificent display of power. The exit is almost vertical. The tail …
Fecal Indicator Bacteria In Knitting Mill Creek With A Comparison Of Methods Used To Enumerate E. Coli, Manju Nagarajan
Fecal Indicator Bacteria In Knitting Mill Creek With A Comparison Of Methods Used To Enumerate E. Coli, Manju Nagarajan
OES Theses and Dissertations
This research seeks to evaluate the impact of an urban, multi-use neighborhood on the bacteriological quality of water in Knitting Mill Creek, a blind arm of the Lafayette River, a sub-estuary of the lower Chesapeake Bay. A principal objective was to determine the effects of rainfall, a surrogate for run-off, on water-column concentrations of fecal-indicator bacteria (FIB). I collected water samples weekly (September 2009-December 2010) and biweekly (January 2010-December 2011) at a storm-sewer outfall and a nearby marina and quantified their E. coli and enterococci concentrations using Colilert-18 and Enterolert, most-probable-number assays. In addition, I took monthly samples for these …
Limnological Assistance For Lake Mead National Recreation Area: Quarterly Report, Period Ending September 30, 2012, Margaret N. Rees
Limnological Assistance For Lake Mead National Recreation Area: Quarterly Report, Period Ending September 30, 2012, Margaret N. Rees
Limnological Studies
Continuation of Project 1
- The research effort titled Growth of adult quagga mussels within Las Vegas Wash/Las Vegas Bay is ongoing.
Continuation of Project 2
- Additional content was contributed to the future NPS-funded U.S. Geological Survey Circular ‘state-of-the-science’ report for Lakes Mead and Mohave. UNLV performed a new co-editing and coordinating task related to this product as the major focus of this quarter’s effort; the master version of this report is on schedule for delivery to the editorial team during the first week of October 2012.
Modification Activities:
Extended Short-term Continued Limnological Assistance
Quagga Mussel Objectives:
- Most juvenile/adult quagga mussel …
The Geologic Records Of Dust In The Quaternary, Daniel R. Muhs
The Geologic Records Of Dust In The Quaternary, Daniel R. Muhs
United States Geological Survey: Staff Publications
Study of geologic records of dust composition, sources and deposition rates is important for understanding the role of dust in the overall planetary radiation balance, fertilization of organisms in the world’s oceans, nutrient additions to the terrestrial biosphere and soils, and for paleoclimatic reconstructions. Both glacial and non-glacial processes produce fine-grained particles that can be transported by the wind. Geologic records of dust flux occur in a number of depositional archives for sediments: (1) loess deposits; (2) lake sediments; (3) soils; (4) deep-ocean basins; and (5) ice sheets and smaller glaciers. These archives have several characteristics that make them highly …
Planning Framework Options For The Massachusetts Ocean Plan (Draft), Jack Wiggin, Kristin Uiterwyk, Steve Bliven, Dan Hellin, John Duff, David Terkla, Robert E. Bowen, Andrew A. Rosenberg, Jennie Harrington, Jill H. Swasey, Suzanne Iudicello, Robert O’Boyle, Porter Hoagland, Hauke L. Kite-Powell, Di Jin, Fara Courtney, Rich Delaney, Pat Hughes, Tracey Morin Dalton, Suzanne Goulet Orenstein, Charles N. Ehler, Fannie Douvere, Les Kaufman, Charles T. Mccaffrey Jr., Nicholas Napoli, Stephanie Moura, Kim Starbuck
Planning Framework Options For The Massachusetts Ocean Plan (Draft), Jack Wiggin, Kristin Uiterwyk, Steve Bliven, Dan Hellin, John Duff, David Terkla, Robert E. Bowen, Andrew A. Rosenberg, Jennie Harrington, Jill H. Swasey, Suzanne Iudicello, Robert O’Boyle, Porter Hoagland, Hauke L. Kite-Powell, Di Jin, Fara Courtney, Rich Delaney, Pat Hughes, Tracey Morin Dalton, Suzanne Goulet Orenstein, Charles N. Ehler, Fannie Douvere, Les Kaufman, Charles T. Mccaffrey Jr., Nicholas Napoli, Stephanie Moura, Kim Starbuck
John Duff
The Massachusetts Ocean Partnership (MOP) Planning Frameworks Team, in consultation with the Massachusetts Executive Office of Energy and Environmental Affairs (EEA), and based on collective experience and a review of ocean, coastal and resource management programs from the US and other countries, suggests that nine elements are essential components of the framework for the Massachusetts Ocean Plan and its implementation. While management plans and programs generally have these elements in common, there are a range of options for carrying out each program component. These options were presented to structure and inform the development of the Massachusetts Ocean Plan. For the …
Lake Erie Water Assessment Study, Brandon Schaefer, Bill Weber, Buck Depew, Brett Kuharik
Lake Erie Water Assessment Study, Brandon Schaefer, Bill Weber, Buck Depew, Brett Kuharik
Undergraduate Research Posters 2012
Lake Erie’s water chemistry is ever-changing and depends primarily on the waters that comprise its 58,800 sq. km drainage basin. The Cleveland data is in concert with most river data collected along the Cuyahoga while the other 2 sites are similar to Lake Erie data.
Identification Of Outer Continental Shelf Renewable Energy Space-Use Conflicts And Analysis Of Potential Mitigation Measures, Flaxen Conway, Madeleine Hall-Arber, Michael Harte, Daniel Hudgens, Thomas Murray, Carrie Pomeroy, John Weiss, Jack Wiggin, Dawn Wright
Identification Of Outer Continental Shelf Renewable Energy Space-Use Conflicts And Analysis Of Potential Mitigation Measures, Flaxen Conway, Madeleine Hall-Arber, Michael Harte, Daniel Hudgens, Thomas Murray, Carrie Pomeroy, John Weiss, Jack Wiggin, Dawn Wright
Urban Harbors Institute Publications
The ocean accommodates a wide variety of uses that are separated by time of day, season, location, and zones. Conflict can and does occur, however, when two or more groups wish to use the same space at the same time in an exclusive manner. The potential for conflict is well known and the management of ocean space and resources has been, and is being, addressed by a number of State, regional, and Federal organizations, including, among others, coastal zone management agencies, state task forces, and regional fisheries management councils. However, with new and emerging uses of the ocean, such as …
Biodegradation Of Textile Dye Anthraquinone Vat Blue 4 By Pseudomonas Aeruginosa, Rajee Olaganathan, Jamila Patterson
Biodegradation Of Textile Dye Anthraquinone Vat Blue 4 By Pseudomonas Aeruginosa, Rajee Olaganathan, Jamila Patterson
Publications
Uncontaminated and Vat blue 4 contaminated soil were screened for heterotrophic bacterial population and the bacterial density were found to be 19.3 X 104 and 5.5 X 104 CFU/gm respectively. The bacterial genera of dye contaminated soil was dominated by Pseudomonas sp. (32.5 %) followed by Bacillus sp. (27.5 %), Aeromonas sp. (15.0 %), Micrococcus sp. (12.5 %) and Achromobacter sp. (12.5 %). The optimum inoculums load, pH and temperature were found to be 5%, 7 and 35oC respectively. The initial pH of the effluent prepared using Vat Blue 4 was 8.5. The free cells of P. aeruginosa reduced the …
The Abundance And Distribution Of Gelatinous Zooplankton In The San Francisco Estuary, Amalia Borson, Lindsay Sullivan, Wim Kimmerer
The Abundance And Distribution Of Gelatinous Zooplankton In The San Francisco Estuary, Amalia Borson, Lindsay Sullivan, Wim Kimmerer
STAR Program Research Presentations
Until recently, gelatinous zooplankton were not considered important components of the San Francisco Estuary (SFE) foodweb. However, anecdotal evidence, ongoing research, and a few published reports and papers suggest an increase in their abundance over the last 10 to 20 years. Of particular interests are three species of introduced hydromedusae (Blackfordia virginica, Maeotias marginata, and Moerisia lyonsi). All three inhabit the fresh to brackish regions of the estuary, including Suisun Bay, the channels of Suisun Marsh, and the western Sacramento-San Joaquin Delta, and are seasonally abundant throughout late summer and fall. As a result, they overlap …
Decadal Changes And Future Projections Of Precipitation In The Metropolitan Area Of Milwaukee, Anke Petra Maria Keuser
Decadal Changes And Future Projections Of Precipitation In The Metropolitan Area Of Milwaukee, Anke Petra Maria Keuser
Theses and Dissertations
This research investigated decadal changes and future projections of precipitation in the Metro Milwaukee and surrounding area, the largest urban area in Wisconsin. Spatial and temporal precipitation patterns derived for the Metro Milwaukee from the high-resolution gridded historical climatic dataset for Wisconsin were analyzed for 1950-2006. In addition, precipitation scenarios were generated via statistical downscaling of the Third Generation Coupled Global Climate Model (CGCM3) outputs. The delta method was chosen for the statistical downscaling of the CGCM3 output for the two future time periods, 2041-2070 (2050s) and 2071-2100 (2080s). The Mann-Kendall test and the Sen's slope test were applied to …
Pastoral Lease Assessment Using Geospatial Analysis, T P. Robinson, P E. Novelly, R Corner, Philip Thomas, A Russell-Browm
Pastoral Lease Assessment Using Geospatial Analysis, T P. Robinson, P E. Novelly, R Corner, Philip Thomas, A Russell-Browm
Resource management technical reports
Seven remote sensing based Vegetation Indices (NDSVI, STVI-3, NDVI, Green + Red, Red, Land Monitor and STVI-1) were tested for their potential to discriminate between “poor” and “good” range condition assessments in Western Australia’s pastoral rangelands. Indices were computed using the Australian Greenhouse Office National Carbon Accounting System (AGO NCAS) repository of calibrated Landsat TM/ETM+ mosaics. Discrimination potential was assessed at two levels of stratification – station level (identical to the stratification used to collect the traverse data), and functional group level (an aggregation of similar land systems);
Groundwater Quality Assessment From Domestic Water Wells In The Fayetteville Shale Gas Play Area In Central Arkansas, Anna Marie Nottmeier
Groundwater Quality Assessment From Domestic Water Wells In The Fayetteville Shale Gas Play Area In Central Arkansas, Anna Marie Nottmeier
Graduate Theses and Dissertations
This study establishes a spatially distributed domestic water well groundwater quality data set, throughout the Fayetteville Shale Gas Play (FSGP) in central Arkansas. The data set facilitates characterization of the geology and groundwater quality across the study area, benefits residents who may have concerns about the potential impacts on their well water quality, and provides a groundwater quality basis to which complaints can be compared and resolved. The assessment included: research of the study area, site reconnaissance, water sampling and collection, interviews with owners of the property, analytical analysis, Quality Assurance and Quality Control, and groundwater data interpretation.
The study …
Land Use Adaptation To Climate Change: Economic Damages From Land-Falling Hurricanes In The Atlantic And Gulf States Of The Usa, 1900-2005, Asim Zia
College of Agriculture and Life Sciences Faculty Publications
Global climate change, especially the phenomena of global warming, is expected to increase the intensity of land-falling hurricanes. Societal adaptation is needed to reduce vulnerability from increasingly intense hurricanes. This study quantifies the adaptation effects of potentially policy driven caps on housing densities and agricultural cover in coastal (and adjacent inland) areas vulnerable to hurricane damages in the Atlantic and Gulf Coastal regions of the U.S. Time series regressions, especially Prais-Winston and Autoregressive Moving Average (ARMA) models, are estimated to forecast the economic impacts of hurricanes of varying intensity, given that various patterns of land use emerge in the Atlantic …
Accuracy Assessment Of Aqua-Modis Aerosol Optical Depth Over Coastal Regions: Importance Of Quality Flag And Sea Surface Wind Speed, Jacob Anderson
Accuracy Assessment Of Aqua-Modis Aerosol Optical Depth Over Coastal Regions: Importance Of Quality Flag And Sea Surface Wind Speed, Jacob Anderson
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Using data collected from 62 coastal stations worldwide from the Aerosol Robotic Network (AERONET) from 2002-2011, accuracy assessments are made for coastal aerosol optical depth (AOD) retrieved from MODIS aboard the Aqua satellite. It is found that coastal AODs (at 550 nm) characterized respectively by the MODIS Dark Land (Land) surface algorithm, the Open Ocean (Ocean) algorithm, and AERONET all exhibit a log-normal distribution. After filtering by quality flags, the coastal MODIS AODs retrieved from the Land and Ocean algorithms are highly correlated with AERONET (with R2≈0.8), but only the Land algorithm AODs fall within the expected error …