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Journal articles on the topic 'Ocean Sampling Day'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Klindworth, Anna, Julia Schnetzer, Ivaylo Kostadinov, Renzo Kottmann, and Frank Oliver Glöckner. "Ocean Sampling Day: Genomische Schatzsuche im Meer." BIOspektrum 20, no. 3 (2014): 351–53. http://dx.doi.org/10.1007/s12268-014-0448-8.

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2

Gentemann, C. L., Joel P. Scott, Piero L. F. Mazzini, et al. "Saildrone: Adaptively Sampling the Marine Environment." Bulletin of the American Meteorological Society 101, no. 6 (2020): E744—E762. http://dx.doi.org/10.1175/bams-d-19-0015.1.

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Abstract From 11 April to 11 June 2018 a new type of ocean observing platform, the Saildrone surface vehicle, collected data on a round-trip, 60-day cruise from San Francisco Bay, down the U.S. and Mexican coast to Guadalupe Island. The cruise track was selected to optimize the science team’s validation and science objectives. The validation objectives include establishing the accuracy of these new measurements. The scientific objectives include validation of satellite-derived fluxes, sea surface temperatures, and wind vectors and studies of upwelling dynamics, river plumes, air–sea interactio

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3

Flexas, Mar M., Martina I. Troesch, Steve Chien, et al. "Autonomous Sampling of Ocean Submesoscale Fronts with Ocean Gliders and Numerical Model Forecasting." Journal of Atmospheric and Oceanic Technology 35, no. 3 (2018): 503–21. http://dx.doi.org/10.1175/jtech-d-17-0037.1.

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ABSTRACTSubmesoscale fronts arising from mesoscale stirring are ubiquitous in the ocean and have a strong impact on upper-ocean dynamics. This work presents a method for optimizing the sampling of ocean fronts with autonomous vehicles at meso- and submesoscales, based on a combination of numerical forecast and autonomous planning. This method uses a 48-h forecast from a real-time high-resolution data-assimilative primitive equation ocean model, feature detection techniques, and a planner that controls the observing platform. The method is tested in Monterey Bay, off the coast of California, du

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4

Vecchi, Gabriel A., and Matthew J. Harrison. "An Observing System Simulation Experiment for the Indian Ocean." Journal of Climate 20, no. 13 (2007): 3300–3319. http://dx.doi.org/10.1175/jcli4147.1.

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Abstract An integrated in situ Indian Ocean observing system (IndOOS) is simulated using a high-resolution ocean general circulation model (OGCM) with daily mean forcing, including an estimate of subdaily oceanic variability derived from observations. The inclusion of subdaily noise is fundamental to the results; in the mixed layer it is parameterized as Gaussian noise with an rms of 0.1°C; below the mixed layer a Gaussian interface displacement with an rms of 7 m is used. The focus of this assessment is on the ability of an IndOOS—comprising a 3° × 3° Argo profiling float array, a series of f

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Arnold, S. R., D. V. Spracklen, S. Gebhardt, et al. "Relationships between atmospheric organic compounds and air-mass exposure to marine biology." Environmental Chemistry 7, no. 3 (2010): 232. http://dx.doi.org/10.1071/en09144.

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Environmental context.The exchange of gases between the atmosphere and oceans impacts Earth’s climate. Over the remote oceans, marine emissions of organic species may have significant impacts on cloud properties and the atmosphere’s oxidative capacity. Quantifying these emissions and their dependence on ocean biology over the global oceans is a major challenge. Here we present a new method which relates atmospheric abundance of several organic chemicals over the South Atlantic Ocean to the exposure of air to ocean biology over several days before its sampling. Abstract.We have used a Lagrangia

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Schnetzer, Julia, Antonio Fernandez-Guerra, Aleksandar Pop Ristov, et al. "MyOSD 2014: Evaluating Oceanographic Measurements Contributed by Citizen Scientists in Support of Ocean Sampling Day †." Journal of Microbiology & Biology Education 17, no. 1 (2016): 163–71. http://dx.doi.org/10.1128/jmbe.v17i1.1001.

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7

Rizkiyah, Zakki, Meida Nugrahalia, and Rosliana Lubis. "PENETAPAN BOBOT TIMBULAN SAMPAH RUMAH TANGGA DI TIGA LINGKUNGAN DI KELURAHAN BANTAN KECAMATAN MEDAN TEMBUNG KOTA MEDAN." BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) 3, no. 1 (2017): 65–74. http://dx.doi.org/10.31289/biolink.v3i1.813.

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This reseach aims was to find out how much of the total solid waste generated both organic and inorganic solid waste weight calculation is done in the village Batan. This type of research is descriptive research with sampling propotional stratified random sampling method. From the data obtained is then perfomed calculation of average waste generation per capita per day, and presentage of the composation. Result of the study found that the average weight of waste generation on the Linkungan IX 0,30 Kg/soul/day, Lingkungan XI 0,37 Kg/soul/day and the Lingkungan XII 0,343 Kg/soul/day. The perecen

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8

Legler, David M. "Errors of Five-Day Mean Surface Wind and Temperature Conditions due to Inadequate Sampling." Journal of Atmospheric and Oceanic Technology 8, no. 5 (1991): 705–12. http://dx.doi.org/10.1175/1520-0426(1991)008<0705:eofdms>2.0.co;2.

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9

Shao, Shidi, Yu Wang, Ge Liu, and Kaishan Song. "A Systematic Review of the Application of the Geostationary Ocean Color Imager to the Water Quality Monitoring of Inland and Coastal Waters." Remote Sensing 16, no. 9 (2024): 1623. http://dx.doi.org/10.3390/rs16091623.

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In recent decades, eutrophication in inland and coastal waters (ICWs) has increased due to anthropogenic activities and global warming, thus requiring timely monitoring. Compared with traditional sampling and laboratory analysis methods, satellite remote sensing technology can provide macro-scale, low-cost, and near real-time water quality monitoring services. The Geostationary Ocean Color Imager (GOCI), aboard the Communication Ocean and Meteorological Satellite (COMS) from the Republic of Korea, marked a significant milestone as the world’s inaugural geostationary ocean color observation sat

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10

Waddington, Kris I., Ben W. Piek, Antony D. Payne, et al. "Description of a Remote Still Photography System for Collection of Benthic Photo-Quadrats." Marine Technology Society Journal 44, no. 2 (2010): 56–63. http://dx.doi.org/10.4031/mtsj.44.2.1.

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AbstractQuantitative sampling of benthic communities is central to a wide range of ecological research, from understanding spatial distribution and ecology to impact studies. With the need to sample deep as well as shallow regions, limited sampling capabilities of diver-based methods and the expanding footprint of human activity, there is a need for an effective system capable of classifying benthic assemblages and able to monitor potential anthropogenic impacts. Here we describe a remote system capable of collecting benthic photo-quadrats to depths of 100 m. A procedure for the classification

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11

Wallis, Jake R., Jessica E. Melvin, Robert King, and So Kawaguchi. "In situ growth rate estimates of Southern Ocean krill, Thysanoessa macrura." Antarctic Science 31, no. 3 (2019): 116–22. http://dx.doi.org/10.1017/s0954102019000063.

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AbstractGrowth, which is intrinsically linked to environmental conditions including temperature and food availability are highly variable both temporally and spatially. Estimates of growth rates of the Southern Ocean euphausiid Thysanoessa macrura are currently restricted to limited studies which rely upon repeated sampling and length-frequency analysis to quantify growth rates. The instantaneous growth method (IGR) was used to measure the growth rate of T. macrura successfully in the southern Kerulen Plateau region during summer, providing the first IGR parameters for the Southern Ocean eupha

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12

Tai, Chang-Kou, and Lee-Lueng Fu. "The 25-Day-Period Large-Scale Oscillations in the Argentine Basin Revisited." Journal of Physical Oceanography 35, no. 8 (2005): 1473–79. http://dx.doi.org/10.1175/jpo2766.1.

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Abstract From sea surface height measurements made by the Ocean Topography Experiment (TOPEX)/Poseidon satellite, Fu et al. found and described large-scale oscillations at the period of 25 days in the Argentine Basin of the South Atlantic Ocean. These oscillations were previously hinted at by in situ observations. Only the extensive space–time sampling capability of TOPEX/Poseidon, however, was able to give a complete description of the phenomenon as a counterclockwise-rotating dipole centered at 45°S, 317°E over the Zapiola Rise. Fu et al. also undertook theoretical and numerical studies to s

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Tian, Liqiao, Xianghan Sun, Jian Li, Qianguo Xing, Qingjun Song, and Ruqing Tong. "Sampling Uncertainties of Long-Term Remote-Sensing Suspended Sediments Monitoring over China’s Seas: Impacts of Cloud Coverage and Sediment Variations." Remote Sensing 12, no. 12 (2020): 1945. http://dx.doi.org/10.3390/rs12121945.

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Satellite-based ocean color sensors have provided an unprecedentedly large amount of information on ocean, coastal and inland waters at varied spatial and temporal scales. However, observations are often adversely affected by cloud coverage and other poor weather conditions, like sun glint, and this influences the accuracy associated with long-term monitoring of water quality parameters. This study uses long-term (2013–2017) and high-frequency (eight observations per day) datasets from the Geostationary Ocean Color Imager (GOCI), the first geostationary ocean color satellite sensor, to quantif

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14

Vance, J. M., K. I. Currie, C. S. Law, J. Murdoch, and J. Zeldis. "NZOA-ON: the New Zealand Ocean Acidification Observing Network." Marine and Freshwater Research 71, no. 3 (2020): 281. http://dx.doi.org/10.1071/mf19222.

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A national observing network has been operating over the past 4 years to inform the scientific and economic challenges of ocean acidification (OA) facing New Zealand. The New Zealand Ocean Acidification Observing Network (NZOA-ON) consists of 12 sites across varied coastal ecosystems. These ecosystems range from oligotrophic ocean-dominated systems to eutrophic river-dominated systems, with sites that are pristine or affected by agriculture and urbanisation. Fortnightly measurements of total alkalinity and dissolved inorganic carbon provide the baseline of carbonate chemistry in these varied e

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15

Tian, Chuan, Zhiqun Daniel Deng, Jun Lu, Xiaoyang Xu, Wei Zhao, and Ming Xu. "Evaluation of a Low-Cost and Accurate Ocean Temperature Logger on Subsurface Mooring Systems." Marine Technology Society Journal 48, no. 3 (2014): 146–54. http://dx.doi.org/10.4031/mtsj.48.3.9.

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AbstractMonitoring seawater temperature is important to understanding evolving ocean processes. To monitor internal waves or ocean mixing, a large number of temperature loggers are typically mounted on subsurface mooring systems to obtain high-resolution temperature data at different water depths. In this study, we redesigned and evaluated a compact, low-cost, self-contained, high-resolution and high-accuracy ocean temperature logger, the TC-1121. The newly designed TC-1121 logger is smaller and more robust, and its sampling interval can be automatically changed by indicated events. The logger

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16

Ohlmann, Carter, Peter White, Libe Washburn, Brian Emery, Eric Terrill, and Mark Otero. "Interpretation of Coastal HF Radar–Derived Surface Currents with High-Resolution Drifter Data." Journal of Atmospheric and Oceanic Technology 24, no. 4 (2007): 666–80. http://dx.doi.org/10.1175/jtech1998.1.

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Abstract Dense arrays of surface drifters are used to quantify the flow field on time and space scales over which high-frequency (HF) radar observations are measured. Up to 13 drifters were repetitively deployed off the Santa Barbara and San Diego coasts on 7 days during 18 months. Each day a regularly spaced grid overlaid on a 1-km2 (San Diego) or 4-km2 (Santa Barbara) square, located where HF radar radial data are nearly orthogonal, was seeded with drifters. As drifters moved from the square, they were retrieved and replaced to maintain a spatially uniform distribution of observations within

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17

Ribalet, Francois, Jarred Swalwell, Sophie Clayton, et al. "Light-driven synchrony ofProchlorococcusgrowth and mortality in the subtropical Pacific gyre." Proceedings of the National Academy of Sciences 112, no. 26 (2015): 8008–12. http://dx.doi.org/10.1073/pnas.1424279112.

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Theoretical studies predict that competition for limited resources reduces biodiversity to the point of ecological instability, whereas strong predator/prey interactions enhance the number of coexisting species and limit fluctuations in abundances. In open ocean ecosystems, competition for low availability of essential nutrients results in relatively few abundant microbial species. The remarkable stability in overall cell abundance of the dominant photosynthetic cyanobacteriumProchlorococcusis assumed to reflect a simple food web structure strongly controlled by grazers and/or viruses. This hy

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18

Krishfield, R., J. Toole, A. Proshutinsky, and M.-L. Timmermans. "Automated Ice-Tethered Profilers for Seawater Observations under Pack Ice in All Seasons." Journal of Atmospheric and Oceanic Technology 25, no. 11 (2008): 2091–105. http://dx.doi.org/10.1175/2008jtecho587.1.

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Abstract An automated, easily deployed Ice-Tethered Profiler (ITP) instrument system, developed for deployment on perennial sea ice in the polar oceans to measure changes in upper ocean water properties in all seasons, is described, and representative data from prototype instruments are presented. The ITP instrument consists of three components: a surface subsystem that sits atop an ice floe; a weighted, plastic-jacketed wire-rope tether of arbitrary length (up to 800 m) suspended from the surface element; and an instrumented underwater unit that employs a traction drive to profile up and down

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19

Kahn, Brian H., Brian J. Drouin, and Tristan S. L’Ecuyer. "Assessment of Sampling Sufficiency for Low-Cost Satellite Missions: Application to PREFIRE." Journal of Atmospheric and Oceanic Technology 37, no. 12 (2020): 2283–98. http://dx.doi.org/10.1175/jtech-d-20-0023.1.

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AbstractThe Polar Radiant Energy in the Far Infrared Experiment (PREFIRE) mission will, for the first time, systematically document the far-infrared (15–54 µm) spectral region from space. The environmental sampling characteristics of the PREFIRE CubeSats, defined in terms of surface temperature (Tsfc) and column water vapor (CWV) are evaluated for a range of possible orbit scenarios for both clear-sky and all-sky conditions over a variety of surface types (land, ocean, sea ice, snow, glacier ice) at both poles. Using NASA Aqua’s Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Soundi

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20

Timmers, Molly A., Christopher P. Jury, Jan Vicente, Keisha D. Bahr, Maryann K. Webb, and Robert J. Toonen. "Biodiversity of coral reef cryptobiota shuffles but does not decline under the combined stressors of ocean warming and acidification." Proceedings of the National Academy of Sciences 118, no. 39 (2021): e2103275118. http://dx.doi.org/10.1073/pnas.2103275118.

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Ocean-warming and acidification are predicted to reduce coral reef biodiversity, but the combined effects of these stressors on overall biodiversity are largely unmeasured. Here, we examined the individual and combined effects of elevated temperature (+2 °C) and reduced pH (−0.2 units) on the biodiversity of coral reef communities that developed on standardized sampling units over a 2-y mesocosm experiment. Biodiversity and species composition were measured using amplicon sequencing libraries targeting the cytochrome oxidase I (COI) barcoding gene. Ocean-warming significantly increased species

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21

Aryal, Rudra, Paul Terman, and Kenneth J. Voss. "Comparison of Two Filter-Based Reflectance Methods to Measure the Light Absorption by Atmospheric Aerosols." Journal of Atmospheric and Oceanic Technology 31, no. 4 (2014): 923–29. http://dx.doi.org/10.1175/jtech-d-13-00131.1.

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Abstract Two reflectance techniques, based on Kubelka–Munk (K-M) theory and on the Beer–Lambert (B-L) law, were used to measure the absorption coefficient of aerosol particles collected on a filter. The two methods agreed, with the B-L technique being higher than the K-M method by a factor of 1.10, but with a correlation, r2, between the two methods of 0.99. The aerosol absorption Ångström exponents (AAE) between the two methods also agreed within 0.4 and were in the range of measurements reported in the literature with other techniques. The precision of the two methods depends on the volume o

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22

Send, Uwe, George Fowler, Greg Siddall, et al. "SeaCycler: A Moored Open-Ocean Profiling System for the Upper Ocean in Extended Self-Contained Deployments." Journal of Atmospheric and Oceanic Technology 30, no. 7 (2013): 1555–65. http://dx.doi.org/10.1175/jtech-d-11-00168.1.

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Abstract The upper ocean, including the biologically productive euphotic zone and the mixed layer, has great relevance for studies of physical, biogeochemical, and ecosystem processes and their interaction. Observing this layer with a continuous presence, sampling many of the relevant variables, and with sufficient vertical resolution, has remained a challenge. Here a system is presented that can be deployed on the top of deep-ocean moorings, with a drive mechanism at depths of 150–200 m, which mechanically winches a large sensor float and smaller communications float tethered above it to the

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Thuy, Ben, Larry Knox, Lea D. Numberger-Thuy, Nicholas S. Smith, and Colin D. Sumrall. "Ancient deep ocean as a harbor of biotic innovation revealed by Carboniferous ophiuroid microfossils." Geology 51, no. 2 (2023): 157–61. http://dx.doi.org/10.1130/g050596.1.

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Abstract Fossil-informed molecular phylogenies have emerged as the most powerful tool for correlating biotic evolution and Earth history. The accuracy of these trees, however, depends on the completeness of fossil sampling. For most organismal clades, the available fossil record is insufficiently sampled. This is especially true for groups with a multi-element skeleton, such as echinoderms and vertebrates, where sampling efforts focus largely on rare finds of intact skeletons. For these groups, inconspicuous but informative skeletal fragments are commonly neglected. This sampling bias excludes

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Wang, Yi-Chen, Ming-An Lee, and Jia-Sin He. "Feeding Habits of Mene maculata (Teleostei: Menidae) in the Southwestern Waters of Taiwan, Western Pacific Ocean." Fishes 10, no. 4 (2025): 182. https://doi.org/10.3390/fishes10040182.

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This study investigated the feeding habits of moonfish (Mene maculata) in the waters of southwestern Taiwan in the Western Pacific Ocean using commercial trawling nets and Taiwanese purse seines. For this, we analyzed the body size and stomach content of moonfish specimens collected from the study area between January and December 2023. The length–weight relationship revealed hypoallometric growth patterns in both male and female specimens, with allometric coefficients of 2.6574 and 2.7219, respectively. Stomach content analysis indicated that the specimens primarily fed on Calanoida (zooplank

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De Luca, Daniele, Wiebe H. C. F. Kooistra, Diana Sarno, Chetan C. Gaonkar, and Roberta Piredda. "Global distribution and diversity of Chaetoceros (Bacillariophyta, Mediophyceae): integration of classical and novel strategies." PeerJ 7 (August 19, 2019): e7410. http://dx.doi.org/10.7717/peerj.7410.

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Information on taxa distribution is a prerequisite for many research fields, and biological records are a major source of data contributing to biogeographic studies. The Global Biodiversity Information Facility (GBIF) and the Ocean Biogeographic Information System (OBIS) are important infrastructures facilitating free and open access to classical biological data from several sources in both temporal and spatial scales. Over the last ten years, high throughput sequencing (HTS) metabarcoding data have become available, which constitute a great source of detailed occurrence data. Among the global

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Kaminski, T., F. Kauker, H. Eicken, and M. Karcher. "Exploring the utility of quantitative network design in evaluating Arctic sea ice thickness sampling strategies." Cryosphere 9 (August 27, 2015): 1721–33. https://doi.org/10.5194/tc-9-1721-2015.

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We present a quantitative network design (QND) study of the Arctic sea ice–ocean system using a software tool that can evaluate hypothetical observational networks in a variational data assimilation system. For a demonstration, we evaluate two idealised flight transects derived from NASA's Operation IceBridge airborne ice surveys in terms of their potential to improve 10-day to 5-month sea ice forecasts. As target regions for the forecasts we select the Chukchi Sea, an area particularly relevant for maritime traffic and offshore resource exploration, as well as two areas related to t

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27

Mazaleyrat, Estelle, Ngan Tran, Laïba Amarouche, et al. "Analysis of High-Frequency Sea-State Variability Using SWOT Nadir Measurements and Application to Altimeter Sea State Bias Modelling." Remote Sensing 16, no. 23 (2024): 4361. http://dx.doi.org/10.3390/rs16234361.

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The 1-day fast-sampling orbit phase of the Surface Water Ocean Topography (SWOT) satellite mission provides a unique opportunity to analyze high-frequency sea-state variability and its implications for altimeter sea state bias (SSB) model development. Time series with 1-day repeat sampling of sea-level anomaly (SLA) and SSB input parameters—comprising the significant wave height (SWH), wind speed (WS), and mean wave period (MWP)—are constructed using SWOT’s nadir altimeter data. The analyses corroborate the following key SSB modelling assumption central to empirical developments: the SLA noise

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Vargas-Yáñez, Manuel, Gregorio Parrilla, Alicia Lavín, Pedro Vélez-Belchí, César González-Pola, and Alonso Hernández-Guerra. "Eddy-Induced Variability in a Transatlantic Section: Argo Observing System–Gyroscope 0302 Cruise Comparison." Journal of Atmospheric and Oceanic Technology 22, no. 7 (2005): 1069–79. http://dx.doi.org/10.1175/jtech1761.1.

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Abstract Ocean hydrological sections provide a very useful mean to study the ocean circulation as well as to determine water mass properties and to estimate fluxes. One basic method for their analysis is the spatial interpolation of data, obtained from a set of predefined stations, into a regular grid for contouring isolines and for further calculations. The shortest length scales that can be solved are limited by the distance between stations. Some of these scales, though resoluble by the sampling design, may be, with respect to time variability, shorter than the time that is needed to comple

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Tzortzis, Roxane, Andrea M. Doglioli, Stéphanie Barrillon, et al. "Impact of moderately energetic fine-scale dynamics on the phytoplankton community structure in the western Mediterranean Sea." Biogeosciences 18, no. 24 (2021): 6455–77. http://dx.doi.org/10.5194/bg-18-6455-2021.

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Abstract. Model simulations and remote sensing observations show that ocean dynamics at fine scales (1–100 km in space, day–weeks in time) strongly influence the distribution of phytoplankton. However, only a few in situ-based studies at fine scales have been performed, and most of them concern western boundary currents which may not be representative of less energetic regions. The PROTEVSMED-SWOT cruise took place in the moderately energetic waters of the western Mediterranean Sea (WMS), in the region south of the Balearic Islands. Taking advantage of near-real-time satellite information, we

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Halpern, David, Dimitris Menemenlis, and Xiaochun Wang. "Impact of Data Assimilation on ECCO2 Equatorial Undercurrent and North Equatorial Countercurrent in the Pacific Ocean." Journal of Atmospheric and Oceanic Technology 32, no. 1 (2015): 131–43. http://dx.doi.org/10.1175/jtech-d-14-00025.1.

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AbstractThe impact of data assimilation on the transports of eastward-flowing Equatorial Undercurrent (EUC) and North Equatorial Countercurrent (NECC) in the Pacific Ocean from 145°E to 95°W during 2004–05 and 2009–11 was assessed. Two Estimating the Circulation and Climate of the Ocean, Phase II (ECCO2), solutions were analyzed: one with data assimilation and one without. Assimilated data included satellite observations of sea surface temperature and ocean surface topography, in which the sampling patterns were approximately uniform over the 5 years, and in situ measurements of subsurface sal

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Kaminski, T., F. Kauker, H. Eicken, and M. Karcher. "Exploring the utility of quantitative network design in evaluating Arctic sea ice thickness sampling strategies." Cryosphere 9, no. 4 (2015): 1721–33. http://dx.doi.org/10.5194/tc-9-1721-2015.

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Abstract. We present a quantitative network design (QND) study of the Arctic sea ice–ocean system using a software tool that can evaluate hypothetical observational networks in a variational data assimilation system. For a demonstration, we evaluate two idealised flight transects derived from NASA's Operation IceBridge airborne ice surveys in terms of their potential to improve 10-day to 5-month sea ice forecasts. As target regions for the forecasts we select the Chukchi Sea, an area particularly relevant for maritime traffic and offshore resource exploration, as well as two areas related to t

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Kaminski, T., F. Kauker, H. Eicken, and M. Karcher. "Exploring the utility of quantitative network design in evaluating Arctic sea-ice thickness sampling strategies." Cryosphere Discussions 9, no. 2 (2015): 1735–68. http://dx.doi.org/10.5194/tcd-9-1735-2015.

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Abstract. We present a quantitative network design (QND) study of the Arctic sea ice-ocean system using a software tool that can evaluate hypothetical observational networks in a variational data assimilation system. For a demonstration, we evaluate two idealised flight transects derived from NASA's Operation IceBridge airborne ice surveys in terms of their potential to improve ten-day to five-month sea-ice forecasts. As target regions for the forecasts we select the Chukchi Sea, an area particularly relevant for maritime traffic and offshore resource exploration, as well as two areas related

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Ollitrault, Michel, and Jean-Philippe Rannou. "ANDRO: An Argo-Based Deep Displacement Dataset." Journal of Atmospheric and Oceanic Technology 30, no. 4 (2013): 759–88. http://dx.doi.org/10.1175/jtech-d-12-00073.1.

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Abstract During the first decade of the twenty-first century, more than 6000 Argo floats have been launched over the World Ocean, gathering temperature and salinity data from the upper 2000 m, at a 10-day or so sampling period. Meanwhile their deep displacements can be used to map the ocean circulation at their drifting depth (mostly around 1000 m). A comprehensive processing of the whole Argo dataset collected prior to 1 January 2010 has been performed to produce a world-wide dataset of deep displacements. This numerical atlas, named ANDRO, after a traditional dance of Brittany meaning a swir

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Morimoto, Shinji, Takashi Yamanouchi, Hideyuki Honda, et al. "A New Compact Cryogenic Air Sampler and Its Application in Stratospheric Greenhouse Gas Observation at Syowa Station, Antarctica." Journal of Atmospheric and Oceanic Technology 26, no. 10 (2009): 2182–91. http://dx.doi.org/10.1175/2009jtecha1283.1.

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Abstract To collect stratospheric air samples for greenhouse gas measurements, a compact cryogenic air sampler has been developed using a cooling device called the Joule–Thomson (J–T) minicooler. The J–T minicooler can produce liquefied neon within 5 s from high pressure neon gas precooled by liquid nitrogen. The sampler employs liquid neon as a refrigerant to solidify or liquefy sampled atmospheric constituents. Laboratory experiments showed that the sampler is capable of collecting about 3 and more than 7 L STP of air at 25 and 120 hPa, respectively, which corresponds to about 25 and 15 km a

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Arguez, Anthony, and Scott Applequist. "A Harmonic Approach for Calculating Daily Temperature Normals Constrained by Homogenized Monthly Temperature Normals." Journal of Atmospheric and Oceanic Technology 30, no. 7 (2013): 1259–65. http://dx.doi.org/10.1175/jtech-d-12-00195.1.

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Abstract NOAA released the new 1981–2010 climate normals in July 2011. These included monthly and daily normals of minimum and maximum temperature. Monthly normals were computed from monthly temperature values that were corrected for biases (i.e., homogenized) due to changes in observing practices over the course of the normals period (station moves, changes in observation time, and changes in instrumentation). Daily temperature observations, however, are not homogenized, which could lead to inconsistencies between the daily and monthly normals. This study offers a constrained harmonic techniq

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Giglio, Donata, Sarah T. Gille, Bruce D. Cornuelle, et al. "Annual Modulation of Diurnal Winds in the Tropical Oceans." Remote Sensing 14, no. 3 (2022): 459. http://dx.doi.org/10.3390/rs14030459.

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Projections of future climate are sensitive to the representation of upper-ocean diurnal variability, including the diurnal cycle of winds. Two different methods suitable for time series with missing data are used here to characterize how observed diurnal winds vary over the year. One is based on diurnal composites of mooring data, and the other is based on harmonic analysis via a least squares fit and is able to isolate annual (i.e., 1 cycle per year) modulation of diurnal variability. Results show that the diurnal amplitude in meridional winds is larger than in zonal winds and peaks in the t

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Orcutt, B. N., D. E. LaRowe, K. G. Lloyd, et al. "IODP Deep Biosphere Research Workshop report – a synthesis of recent investigations, and discussion of new research questions and drilling targets." Scientific Drilling 17 (April 29, 2014): 61–66. http://dx.doi.org/10.5194/sd-17-61-2014.

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Abstract. During the past decade, the IODP (International Ocean Discovery Program) has fostered a significant increase in deep biosphere investigations in the marine sedimentary and crustal environments, and scientists are well-poised to continue this momentum into the next phase of the IODP. The goals of this workshop were to evaluate recent findings in a global context, synthesize available biogeochemical data to foster thermodynamic and metabolic activity modeling and measurements, identify regional targets for future targeted sampling and dedicated expeditions, foster collaborations, and h

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Formenti, Paola, Stuart John Piketh, Andreas Namwoonde, et al. "Three years of measurements of light-absorbing aerosols over coastal Namibia: seasonality, origin, and transport." Atmospheric Chemistry and Physics 18, no. 23 (2018): 17003–16. http://dx.doi.org/10.5194/acp-18-17003-2018.

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Abstract. Continuous measurements between July 2012 and December 2015 at the Henties Bay Aerosol Observatory (HBAO; 22∘ S, 14∘05′ E), Namibia, show that, during the austral wintertime, transport of light-absorbing black carbon aerosols occurs at low level into the marine boundary layer. The average of daily concentrations of equivalent black carbon (eBC) over the whole sampling period is 53 (±55) ng m−3. Peak values above 200 ng m−3 and up to 800 ng m−3 occur seasonally from May to August, ahead of the dry season peak of biomass burning in southern Africa (August to October). Analysis of 3-day

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Wang, Jian-Jian, Robert F. Adler, George J. Huffman, and David Bolvin. "An Updated TRMM Composite Climatology of Tropical Rainfall and Its Validation." Journal of Climate 27, no. 1 (2014): 273–84. http://dx.doi.org/10.1175/jcli-d-13-00331.1.

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Abstract An updated 15-yr Tropical Rainfall Measuring Mission (TRMM) composite climatology (TCC) is presented and evaluated. This climatology is based on a combination of individual rainfall estimates made with data from the primary TRMM instruments: the TRMM Microwave Imager (TMI) and the precipitation radar (PR). This combination climatology of passive microwave retrievals, radar-based retrievals, and an algorithm using both instruments simultaneously provides a consensus TRMM-based estimate of mean precipitation. The dispersion of the three estimates, as indicated by the standard deviation

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Khusniyah, Khusniyah, Zeni Zainal Muis, and Dwi Apriyanti Kumalasari. "Food waste study to improve family economy." Jurnal Agrotek Ummat 9, no. 3 (2022): 209. http://dx.doi.org/10.31764/jau.v9i3.8649.

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Indonesia is the second largest contributor to food waste in the world. The Global Hunger Index said that the level of hunger in Indonesia is at a serious level but processing food waste can have a positive impact on the family economy. This study first aims to determine the factors that influence the behavior of preparing food, secondly to determine the factors that influence the behavior of wasting food, and thirdly to find out that food waste can improve the family's economy. This type of qualitative descriptive research was carried out in Jiken Village, Tulangan District, Sidoarjo Regency,

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Hernandez-Lasheras, Jaime, and Baptiste Mourre. "Dense CTD survey versus glider fleet sampling: comparing data assimilation performance in a regional ocean model west of Sardinia." Ocean Science 14, no. 5 (2018): 1069–84. http://dx.doi.org/10.5194/os-14-1069-2018.

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Abstract. The REP14-MED sea trial carried out off the west coast of Sardinia in June 2014 provided a rich set of observations from both ship-based conductivity–temperature–depth (CTD) probes and a fleet of underwater gliders. We present the results of several simulations assimilating data either from CTDs or from different subsets of glider data, including up to eight vehicles, in addition to satellite sea level anomalies, surface temperature and Argo profiles. The Western Mediterranean OPerational forcasting system (WMOP) regional ocean model is used with a local multi-model ensemble optimal

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Bidasari, Bidasari, Retna Astuti Kuswardani, and Jamilah Nasution. "Pendugaan Populasi Penyu Hijau (Chelonia Mydas) di Pulau Jemur Kabupaten Rokan Hilir Riau." BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) 2, no. 2 (2017): 141–46. http://dx.doi.org/10.31289/biolink.v2i2.804.

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Research on the estimation of green turtle population (Chelonia mydas) was conducted in Jemur Island of Rokan Hilir Regency of Riau Province in May-June 2012. The purpose of this research is to estimate the green turtle population in Jemur Island Rokan Hilir regency, Riau Province. The research method used is the absolute method of absolute sampling that results in the number of population estimates in the form of the number of individuals per unit of sand surface units or habitats observed. The results showed that the number of different individuals as many as 229 nests. The condition of Jemu

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Salsabila, Farah, Suharyo Hadisaputro, and Lanny Sunarjo. "Effect of pomegranate extract (Punica granatum L.) on blood pressure and nitric oxide in gestational hypertension." MEDISAINS 21, no. 2 (2023): 41. http://dx.doi.org/10.30595/medisains.v21i2.17484.

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Background: As a complication of pregnancy, uncontrolled hypertension will continue to be a complication that harms both mother and baby. Pomegranate peel, which contains high antioxidants, is potentially used as an antihypertensive of adjuvant pharmacological therapy. However, there has been no research on the effect of pomegranate extract in lowering blood pressure, so it is necessary to do related research.Purpose: Analyze the effect of pomegranate peel extract on blood pressure and nitric oxide levels in gestational hypertension.Methods: This is a quasi-experiment design pre-post-test with

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Báez-Hernández, Maite, Noemí García, Inmaculada Menéndez, et al. "Interaction of sinking behaviour of Saharan dust and lithogenic and biogenic fluxes in the Canary Basin." Scientia Marina 83, no. 2 (2019): 121. http://dx.doi.org/10.3989/scimar.04877.19a.

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Saharan dust events are currently the predominant source of lithogenic particles in the Canary Basin. In order to quantify this input and its relationship with the biogenic fluxes, a sediment trap was deployed in a free-drifting system at 150 m depth, 50 km off the north coast of Gran Canaria (Canary Islands). The mineralogy of the lithogenic particles included illite, calcite, hematite quartz, barite and kaolinite. The biogenic matter was composed of chitin, transparent exopolymer particles, and carbonates from foraminifera and gastropod shells. The average Saharan dust flux over the ocean su

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Meilland, Julie, Michael Siccha, Maike Kaffenberger, Jelle Bijma, and Michal Kucera. "Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean." Biogeosciences 18, no. 20 (2021): 5789–809. http://dx.doi.org/10.5194/bg-18-5789-2021.

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Abstract. It has long been assumed that the population dynamics of planktonic foraminifera is characterised by synchronous reproduction associated with ontogenetic vertical migration. However, due to contradictory observations, this concept became controversial, and subsequent studies provided evidence both in favour and against these phenomena. Here we present new observations from replicated vertically resolved profiles of abundance and shell size variation in four species of planktonic foraminifera from the tropical Atlantic to test for the presence, pattern, and extent of synchronised repr

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Kim, Sang-il, Do-Seob Ahn, Kyung-Soo Han, and Jong-Min Yeom. "Improved Vegetation Profiles with GOCI Imagery Using Optimized BRDF Composite." Journal of Sensors 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/7165326.

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The purpose of this study was to optimize a composite method for the Geostationary Ocean Color Imager (GOCI), which is the first geostationary ocean color sensor in the world. Before interpreting the sensitivity of each composite with ground measurements, we evaluated the accuracy of bidirectional reflectance distribution function (BRDF) performance by comparing modeled surface reflectance from BRDF simulation with GOCI-measured surface reflectance according to composite period. The root mean square error values for modeled and measured surface reflectance showed reasonable accuracy for all of

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Perlin, A., and J. N. Moum. "Comparison of Thermal Variance Dissipation Rates from Moored and Profiling Instruments at the Equator." Journal of Atmospheric and Oceanic Technology 29, no. 9 (2012): 1347–62. http://dx.doi.org/10.1175/jtech-d-12-00019.1.

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Abstract As a quantitative test of moored mixing measurements using χpods, a comparison experiment was conducted at 0°, 140°W in October–November 2008. The following three measurement elements were involved: (i) NOAA’s Tropical Atmosphere Ocean (TAO) mooring with five χpods, (ii) a similar mooring 9 km away with seven χpods, and (iii) Chameleon turbulence profiles at an intermediate location. Dissipation rates of temperature variance and turbulent kinetic energy are compared. In all but 3 of 17 direct comparisons 15-day mean values of χT agreed within 95% bootstrap confidence limits computed w

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Hanifatul Ulya, Rapitos Sidiq, Neni Fitra Hayati, John Amos, and Evi Maria Lestari Silaban. "Perubahan Pengetahuan dan Sikap Terhadap Pencegahan Miopia Melalui Permainan Roda Putar." ARTERI : Jurnal Ilmu Kesehatan 4, no. 4 (2023): 243–51. http://dx.doi.org/10.37148/arteri.v4i4.344.

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SD Al-Azhar 32 Padang is one of the schools with a high level of competition and is a full-day system school with students all day at school. Students' low knowledge and attitude toward myopia prevention are the causes of myopia in school-age children. Myopia prevention efforts need to be made to reduce the incidence of myopia in schoolchildren. This activity can be supported by a rotating wheel educational game tool. This study aims to determine changes in the knowledge and attitudes of schoolchildren toward myopia prevention efforts at Al-Azhar 32 elementary school in Padang. This research u

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Harshvardhan, Harshvardhan, Richard Ferrare, Sharon Burton, et al. "Vertical structure of biomass burning aerosol transported over the southeast Atlantic Ocean." Atmospheric Chemistry and Physics 22, no. 15 (2022): 9859–76. http://dx.doi.org/10.5194/acp-22-9859-2022.

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Abstract. Biomass burning in southwestern Africa produces smoke plumes that are transported over the Atlantic Ocean and overlie vast regions of stratocumulus clouds. This aerosol layer contributes to direct and indirect radiative forcing of the atmosphere in this region particularly during the months of August, September, and October. There was a multi-year international campaign to study this aerosol and its interactions with clouds. Here, we report on the evolution of aerosol distributions and properties as measured by the airborne high spectral resolution lidar (HSRL-2) during the ORACLES (

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Dibarboure, G., and R. Morrow. "Value of the Jason-1 Geodetic Phase to Study Rapid Oceanic Changes and Importance for Defining a Jason-2 Geodetic Orbit." Journal of Atmospheric and Oceanic Technology 33, no. 9 (2016): 1913–30. http://dx.doi.org/10.1175/jtech-d-16-0015.1.

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AbstractBecause of the drifting nature of the ground track of Jason-1 during its geodetic mission (GM), there are 1200 overlap events where the Jason-1 GM and Jason-2 tracks align perfectly (less than their altimeter footprint radius) over thousands of kilometers. These overlap events sample homogeneously all longitudes and all time differences (dt) ranging from a few minutes to 10 days or more.When dt is almost zero, the difference is characterized by altimeter noise and its modulation by waves. As dt increases, the rapid ocean variability is revealed. The first statistical analysis of the 12

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