Characteristics of plankton Hg bioaccumulations based on a global data set and the implications for aquatic systems with aggravating nutrient imbalance

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Zhike Li ◽  
Jie Chi ◽  
Zhenyu Wu ◽  
Yiyan Zhang ◽  
Yiran Liu ◽  
...  
Keyword(s):  
Aquatic Systems ◽  
Data Set ◽  
Nutrient Imbalance ◽  
Global Data

Für Wetter und Klima – Maritim-Meteorologische Observationen beim DWD

2021 ◽  
Author(s):  
Axel Andersson ◽  
Henry Kleta ◽  
Hildrun Otten-Balaccanu ◽  
Thomas Möller
Keyword(s):  
Wird Eine ◽  
Data Set ◽  
Ocean Atmosphere ◽  
Global Data

<p>Die Erfassung und Überwachung des Wetters und des Klimas auf den Weltmeeren hat eine lange Tradition beim Deutschen Wetterdienst (DWD) und seinen Vorgängerorganisationen in Hamburg. Seit dem 19. Jahrhundert werden auf Schiffen systematisch meteorologische und ozeanographische Informationen gesammelt, die ein detailliertes Verständnis des maritimen Wetters und des Klimas ermöglichen. Bis heute sind die meteorologischen Schiffsbeobachtungen eine wichtige Datenquelle für die Wettervorhersage und die Klimaüberwachung.</p> <p>Der Deutsche Wetterdienst betreibt ein großes meteorologisches maritimes Messnetz, welches mehr als 500 Schiffe umfasst, die regelmäßig Wetterbeobachtungen auf allen Weltmeeren durchführen. Diese Schiffe beteiligen sich am internationalen <em>Voluntary Observing Ship (VOS) Scheme</em> und ihre Beobachtungen werden in Echtzeit über das globale Telekommunikationssystem (GTS) der WMO verbreitet. Dabei wird eine zunehmende Anzahl von Beobachtungen von automatischen Wetterstationen an Bord von Schiffen geliefert.</p> <p>Neben der Nutzung für die operationelle Wettervorhersage sind die maritim-meteorologischen Observationen ein wichtiger Beitrag zu klimatologischen Archiven wie der In-situ Datenbank des maritimen Klimadatenzentrums des DWD. Diese Datenbank besteht aus qualitätskontrollierten Daten aus Echtzeit- und <em>delayed mode</em> Datenströmen, sowie aus einer großen Menge historischer Daten. Der Datenbestand wächst kontinuierlich durch aktuelle operationelle Dateneingänge, aber auch durch die Digitalisierung alter meteorologischer Schiffsjournale und reicht von heute bis weit zurück in das 19 Jahrhundert. Im Rahmen des internationalen Datenaustauschs über die WMO / IOC <em>VOS Global Data Assembly Centres</em> (GDACs) werden die maritimen Klimadaten regelmäßig in den <em>International Comprehensive Ocean-Atmosphere Data Set</em> (ICOADS) integriert. Des Weiteren werden die Daten für eine Vielzahl von Klimaanwendungen verwendet, z.B. als Input für Reanalysen, für die operationelle Klimaüberwachung, klimatologische Analysen und Datenprodukte, sowie für die Kalibrierung von Satellitenbeobachtungen.</p>

The NOVAC database of volcanic SO2 emissions

2021 ◽  
Author(s):  
Bo Galle ◽  
Keyword(s):  
Sulphur Dioxide ◽  
Meteorological Conditions ◽  
So2 Emissions ◽  
Volcanic Gas ◽  
Data Set ◽  
Gas Emissions ◽  
First Time ◽  
Global Data ◽  
Web Repository ◽  
The Web

<p>We present a detailed global data-set of volcanic sulphur dioxide (SO2) emissions during the period 2005-2017. Measurements were obtained by scanning-DOAS instruments of the NOVAC network at 32 volcanoes, and processed using a standardized procedure. We reveal the daily statistics of volcanic gas emissions under a variety of volcanological and meteorological conditions. Data from several volcanoes are presented for the first time. Our results  are compared with yearly averages derived from measurements from space by the Aura/OMI instrument and with historical inventories of GEIA. This comparison shows some interesting differences which reasons are briefly discussed. Data is openly available through the web repository at https://novac.chalmers.se/.</p>

Census Enumeration and Group Conflict

2016 ◽  
Vol 69 (1) ◽  
pp. 1-53 ◽  
Author(s):  
Evan S. Lieberman ◽  
Prerna Singh
Keyword(s):  
Social Identity ◽  
Intergroup Relations ◽  
Religious Conflict ◽  
Study Analysis ◽  
Data Set ◽  
Case Study Analysis ◽  
The Relationship ◽  
Global Data ◽  
Cross National

Does the enumeration of ethnic, racial, and/or religious categories on national household censuses increase the likelihood of conflict? The authors propose a theory of intergroup relations that emphasizes the conflictual effects of institutionalizing boundaries between social identity groups. The article investigates the relationship between counting and various forms of conflict with an original, global data set that classifies the type of enumeration used in more than one thousand census questionnaires in more than 150 countries spanning more than two centuries. Through a series of cross-national statistical analyses, the authors find a robust association between enumeration of ethnic cleavages on the census and various forms of competition and conflict, including violent ethnic civil war. The plausibility of the theory is further demonstrated through case study analysis of religious conflict in India.

Mapping a Global Phenomenon

2019 ◽  
pp. 39-86
Author(s):  
Janny H.C. Leung
Keyword(s):  
Language Policy ◽  
Sociopolitical Development ◽  
Data Set ◽  
Detailed History ◽  
Post Colonial ◽  
Contemporary World ◽  
Colonial Legacy ◽  
The World ◽  
History Of ◽  
Global Data

Having explored how official multilingualism has emerged as a product of historical and sociopolitical development, this chapter moves on to survey the extent of the phenomenon in the contemporary world. The data set offers a panoramic view of jurisdictions around the world that are officially bilingual or multilingual. Although there is not enough room to provide a detailed history of any particular jurisdiction, the chapter annotates the data and makes a number of generalized observations. The global data provide a sense of scale that speaks for itself and allow one to observe patterns and trends that help make sense of the phenomenon. Although linguistic demographics and the ideology of linguistic nationalism have a role to play, they are insufficient to explain the data. Official multilingualism is largely a post-colonial legacy, but there is also an emergent trend that official language policy responds to market forces under late capitalism.

scholarly journals Institutions and the Location of Oil Exploration

2019 ◽  
Vol 18 (3) ◽  
pp. 1321-1350 ◽  
Author(s):  
James Cust ◽  
Torfinn Harding
Keyword(s):  
Oil And Gas ◽  
Institutional Quality ◽  
Regression Discontinuity Design ◽  
Host Countries ◽  
Data Set ◽  
Oil And Gas Exploration ◽  
Oil Companies ◽  
Exploration Drilling ◽  
Oil Sector ◽  
Global Data

AbstractWe provide evidence that institutions have a strong influence over where oil and gas exploration takes place. We utilise a global data set on the location of exploration wells and national borders. This allows for a regression discontinuity design with the identifying assumption that the position of borders was determined independently of geology. In order to break potential simultaneity between borders, institutions, and activities in the oil sector, we focus on drilling that occurred after the formation of borders and institutions. Our sample covers 88 countries over the 1966–2010 period. At borders, we estimate more than twice as much drilling on the side with better institutional quality. Subsample analyses reveal effects of institutions on exploration drilling in both developing and high income countries, as well as across three types of operating companies. We find that the supermajor international oil companies are particularly sensitive to institutional quality in developing countries. Our findings are consistent with the view that institutions shape both exploration companies’ incentives to invest in drilling and host countries’ supply of drilling opportunities.

scholarly journals A gridded global data set of soil, intact regolith, and sedimentary deposit thicknesses for regional and global land surface modeling

2016 ◽  
Vol 8 (1) ◽  
pp. 41-65 ◽  
Author(s):  
Jon D. Pelletier ◽  
Patrick D. Broxton ◽  
Pieter Hazenberg ◽  
Xubin Zeng ◽  
Peter A. Troch ◽  
...  
Keyword(s):  
Land Surface ◽  
Surface Modeling ◽  
Data Set ◽  
Land Surface Modeling ◽  
Global Land ◽  
Sedimentary Deposit ◽  
Global Data

Ocean color: Availability of the global data set

Eos ◽  
1989 ◽  
Vol 70 (23) ◽  
pp. 634 ◽  
Author(s):  
Gene Feldman ◽  
Norman Kuring ◽  
Carolyn Ng ◽  
Wayne Esaias ◽  
Chuck McClain ◽  
...  
Keyword(s):  
Ocean Color ◽  
Data Set ◽  
Global Data

scholarly journals A scPDSI-based global data set of dry and wet spells for 1901-2009

2013 ◽  
Vol 118 (10) ◽  
pp. 4025-4048 ◽  
Author(s):  
G. van der Schrier ◽  
J. Barichivich ◽  
K. R. Briffa ◽  
P. D. Jones
Keyword(s):  
Data Set ◽  
Global Data ◽  
Wet Spells

scholarly journals Surface Ocean CO<sub>2</sub> Atlas (SOCAT) gridded data products

2012 ◽  
Vol 5 (2) ◽  
pp. 781-804 ◽  
Author(s):  
C. L. Sabine ◽  
S. Hankin ◽  
H. Koyuk ◽  
D. C. E. Bakker ◽  
B. Pfeil ◽  
...  
Keyword(s):  
Gridded Data ◽  
Data Set ◽  
Surface Ocean ◽  
Marine Surface ◽  
Science Community ◽  
Ocean Carbon ◽  
To Come ◽  
Carbon Dioxide Co2 ◽  
Global Oceans ◽  
Global Data

Abstract. A well documented, publicly available, global data set for surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning four decades (1968–2007). The SOCAT gridded data is the second data product to come from the SOCAT project. Recognizing that some groups may have trouble working with millions of measurements, the SOCAT gridded product was generated to provide a robust regularly spaced fCO2 product with minimal spatial and temporal interpolation which should be easier to work with for many applications. Gridded SOCAT is rich with information that has not been fully explored yet, but also contains biases and limitations that the user needs to recognize and address.

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