Mediterranean Sea, Water body dissolved oxygen concentration.4Danl [time][lat][lon], 0.125deg, 1974-2017

DIVA 4D analysis of Water_body_dissolved_oxygen_concentration. Every year of the time dimension corresponds to a 6-year running average for Winter (January - March), Spring (April - June), Summer (July - September) or Automn (October - December). Horizontal resolution 0.125deg X 0.125deg.
abstract=Moving 6-year analysis of Water body chlorophyll-a in the Mediterranean Sea for each season:
- winter: January-March,
- spring: April-June,
- summer: July-September,
- autumn: October-December.
Every year of the time dimension corresponds to the 6-year centered average of the season.
6-years periods span from 1990-1995 until 2016-2021.
Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network.
Units: mg/m3.
Description of DIVA analysis: The computation was done with the DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.9, using GEBCO 30sec topography for the spatial connectivity of water masses.
The horizontal resolution of the produced DIVAnd maps grids is dx=dy=0.125 degrees (around 13.5km and 10.9km accordingly).
The vertical resolution is 20 depth levels: [0.,5.,10.,20.,30.,50.,75.,100.,125.,150.,200.,250.,300.,400.,500.,600.,700.,800.,900.,1000.].
The horizontal correlation length is 200km.
The vertical correlation length (in meters) was set twice the vertical resolution: [10.,10.,20.,20.,40.,50.,50.,50.,50.,100.,100.,100.,200.,200.,200.,200.,200.,200.,200.,200.].
Duplicates check was performed using the following criteria for space and time: dlon=0.001deg., dlat=0.001deg., ddepth=1m, dtime=1hour, dvalue=0.1.
The error variance (epsilon2) was set equal to 1 for profiles and 10 for time series to reduce the influence of close data near the coasts.
An anamorphosis transformation was applied to the data (function DIVAnd.Anam.loglin) to avoid unrealistic negative values: threshold value=200.
A background analysis field was used for all years (1990-2021) with correlation length equal to 600km and error variance (epsilon2) equal to 20.
Quality control of the observations was applied using the interpolated field (QCMETHOD=3). Residuals (differences between the observations and the analysis (interpolated linearly to the location of the observations) were calculated. Observations with residuals outside the minimum and maximum values of the 99% quantile were discarded from the analysis.
Originators of Italian data sets-List of contributors:
- Brunetti Fabio (OGS)
- Cardin Vanessa, Bensi Manuel doi:10.6092/36728450-4296-4e6a-967d-d5b6da55f306
- Cardin Vanessa, Bensi Manuel, Ursella Laura, Siena Giuseppe doi:10.6092/f8e6d18e-f877-4aa5-a983-a03b06ccb987
- Cataletto Bruno (OGS)
- Cinzia Comici Cinzia (OGS)
- Civitarese Giuseppe (OGS)
- DeVittor Cinzia (OGS)
- Giani Michele (OGS)
- Kovacevic Vedrana (OGS)
- Mosetti Renzo (OGS)
- Solidoro C.,Beran A.,Cataletto B.,Celussi M.,Cibic T.,Comici C.,Del Negro P.,De Vittor C.,Minocci M.,Monti M.,Fabbro C.,Falconi C.,Franzo A.,Libralato S.,Lipizer M.,Negussanti J.S.,Russel H.,Valli G., doi:10.6092/e5518899-b914-43b0-8139-023718aa63f5
- Celio Massimo (ARPA FVG)
- Malaguti Antonella (ENEA)
- Fonda Umani Serena (UNITS)
- Bignami Francesco (ISAC/CNR)
- Boldrini Alfredo (ISMAR/CNR)
- Marini Mauro (ISMAR/CNR)
- Miserocchi Stefano (ISMAR/CNR)
- Zaccone Renata (IAMC/CNR)
- Lavezza, R., Dubroca, L. F. C., Ludicone, D., Kress, N., Herut, B., Civitarese, G., Cruzado, A., Lefevre, D.,Souvermezoglou, E., Yilmaz, A., Tugrul, S., and Ribera d'Alcala, M.: Compilation of quality controlled nutrient profiles from the Mediterranean Sea, doi:10.1594/PANGAEA.771907, 2011.
acknowledgment=Aggregated data products are generated by EMODnet Chemistry under the support of DG MARE Call for Tenders EASME/2020/OP/0006 (EASME/EMFF/2020/3.1.11/Lot 5/SI2.846161)
area_keywords=Mediterranean Sea
area_keywords_urn=SDN:C19::3_1
Author_e_mail=Athanasia (Sissy) Iona <[e-mail]>
bathymetry_source=The GEBCO Digital Atlas published by the British Oceanographic Data Centre on behalf of IOC and IHO, 2003
cdm_data_type=Grid
citation=Usage is subject to mandatory citation: "This resource was generated in the framework of EMODnet Chemistry, under the support of DG MARE Call for Tender EASME/EMFF/2020/3.1.11/European Marine Observation and Data Network (EMODnet) - Lot 5 - Chemistry"
Conventions=CF-1.6, COARDS, ACDD-1.3
data_access=https://emodnet.ec.europa.eu/geoviewer
date=2023-03-01T23:44:01
DIVA_code_doi=10.5281/zenodo.7016823
DIVA_references=Barth, A., Beckers, J.-M., Troupin, C., Alvera-Azcarate, A., and Vandenbulcke, L. (2014): divand-1.0: n-dimensional variational data analysis for ocean observations, Geosci. Model Dev., 7, 225-241, doi: 10.5194/gmd-7-225-2014
DIVAnd_source=https://github.com/gher-uliege/DIVAnd.jl
DIVAnd_version=v2.7.9
doi=https://doi.org/10.13120/2de6ba50-b87a-11ed-05ae-bf5207749019
Easternmost_Easting=36.5
file_name=By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc
geospatial_lat_max=46.0
geospatial_lat_min=30.0
geospatial_lat_resolution=0.125
geospatial_lat_units=degrees_north
geospatial_lon_max=36.5
geospatial_lon_min=-7.0
geospatial_lon_resolution=0.125
geospatial_lon_units=degrees_east
history=Fri Sep 1 10:08:58 2023: ncks -O Water_body_dissolved_oxygen_concentration.4Danl.nc Water_body_dissolved_oxygen_concentration.4Danl.nc
id=DatasetScan/emodnet-domains/By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc
infoUrl=http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc.html
institution=HCMR/HNODC
institution_urn=SDN:EDMO::269
keywords_vocabulary=GCMD Science Keywords
NCO=netCDF Operators version 4.9.9 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)
Northernmost_Northing=46.0
parameter_keyword=Water body dissolved oxygen concentration
parameter_keyword_urn=SDN:P35::EPC00002
product_code=HNODC-Mediterranean Sea-Water body dissolved oxygen concentration-v2023-ANA
product_id=2de6ba50-b87a-11ed-05ae-bf5207749019
project=EMODnet Chemistry phase 5
search_keywords=Dissolved oxygen parameters in the water column
search_keywords_urn=SDN:P02::DOXY
source=observational data from SeaDataNet/EMODnet Chemistry Data Network
sourceUrl=http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc
Southernmost_Northing=30.0
standard_name_vocabulary=CF Standard Name Table v70
time_coverage_end=2090-11-15T00:00:00Z
time_coverage_start=2044-02-16T00:00:00Z
WEB_visualisation=https://emodnet.ec.europa.eu/geoviewer
Westernmost_Easting=-7.0

DIVA 4D对水体溶解氧浓度的分析。时间维度每年对应冬季（1月至3月）、春季（4月至6月）、夏季（7月至9月）或秋季（10月至12月）的6年运行平均值。水平分辨率为0.125度×0.125度。

摘要：对地中海水体叶绿素a的6年动态分析，按季节划分如下：
- 冬季：1月至3月
- 春季：4月至6月
- 夏季：7月至9月
- 秋季：10月至12月

时间维度每年对应季节的6年中心平均值。6年周期从1990-1995年直至2016-2021年。
数据来源：SeaDataNet/EMODnet化学数据网络观测数据。
单位：毫克/立方米。
DIVA分析描述：计算使用DIVAnd（n维变分数据插值分析）版本2.7.9，利用GEBCO 30秒地形数据作为水团的空间连通性。
产生的DIVAnd地图网格的水平分辨率为dx=dy=0.125度（大约为13.5公里和10.9公里）。
垂直分辨率为20个深度层级：[0.,5.,10.,20.,30.,50.,75.,100.,125.,150.,200.,250.,300.,400.,500.,600.,700.,800.,900.,1000.]。
水平相关长度为200公里。
垂直相关长度（以米为单位）设置为垂直分辨率的二倍：[10.,10.,20.,20.,40.,50.,50.,50.,50.,100.,100.,100.,200.,200.,200.,200.,200.,200.,200.,200.]。
使用以下空间和时间标准对重复项进行了检查：dlon=0.001度，dlat=0.001度，ddepth=1米，dtime=1小时，dvalue=0.1。
将误差方差（epsilon2）设置为1（用于剖面）和10（用于时间序列），以减少近海岸附近数据的干扰。
对数据进行了一次畸变变换（函数DIVAnd.Anam.loglin），以避免出现不切实际的负值：阈值值=200。
对所有年份（1990-2021年）使用了背景分析场，相关长度为600公里，误差方差（epsilon2）为20。
使用插值场对观测数据进行了质量控制（QCMETHOD=3）。计算了观测值与分析（线性插值到观测位置）之间的残差。将残差超出99%分位数最小值和最大值的观测值从分析中剔除。
意大利数据集的发起人-贡献者名单：
- Brunetti Fabio（OGS）
- Cardin Vanessa, Bensi Manuel doi:10.6092/36728450-4296-4e6a-967d-d5b6da55f306
- Cardin Vanessa, Bensi Manuel, Ursella Laura, Siena Giuseppe doi:10.6092/f8e6d18e-f877-4aa5-a983-a03b06ccb987
- Cataletto Bruno（OGS）
- Cinzia Comici Cinzia（OGS）
- Civitarese Giuseppe（OGS）
- DeVittor Cinzia（OGS）
- Giani Michele（OGS）
- Kovacevic Vedrana（OGS）
- Mosetti Renzo（OGS）
- Solidoro C.,Beran A.,Cataletto B.,Celussi M.,Cibic T.,Comici C.,Del Negro P.,De Vittor C.,Minocci M.,Monti M.,Fabbro C.,Falconi C.,Franzo A.,Libralato S.,Lipizer M.,Negussanti J.S.,Russel H.,Valli G., doi:10.6092/e5518899-b914-43b0-8139-023718aa63f5
- Celio Massimo（ARPA FVG）
- Malaguti Antonella（ENEA）
- Fonda Umani Serena（UNITS）
- Bignami Francesco（ISAC/CNR）
- Boldrini Alfredo（ISMAR/CNR）
- Marini Mauro（ISMAR/CNR）
- Miserocchi Stefano（ISMAR/CNR）
- Zaccone Renata（IAMC/CNR）
- Lavezza, R., Dubroca, L. F. C., Ludicone, D., Kress, N., Herut, B., Civitarese, G., Cruzado, A., Lefevre, D.,Souvermezoglou, E., Yilmaz, A., Tugrul, S., and Ribera d'Alcala, M.: Compilation of quality controlled nutrient profiles from the Mediterranean Sea, doi:10.1594/PANGAEA.771907, 2011。
致谢：由EMODnet化学在DG MARE Call for Tenders EASME/2020/OP/0006（EASME/EMFF/2020/3.1.11/Lot 5/SI2.846161）的支持下生成数据产品。
区域关键词：地中海
区域关键词_urn：SDN:C19::3_1
作者电子邮件：Athanasia (Sissy) Iona <[e-mail]>
海底地形来源：英国海洋数据中心代表IOC和IHO出版的GEBCO数字地图集，2003。
cdm数据类型：网格
引用：使用本资源需强制引用：“本资源是在EMODnet化学框架内生成的，在DG MARE Call for Tender EASME/EMFF/2020/3.1.11/European Marine Observation and Data Network (EMODnet) - Lot 5 - Chemistry的支持下生成的。”
约定：CF-1.6，COARDS，ACDD-1.3
数据访问：https://emodnet.ec.europa.eu/geoviewer
日期：2023-03-01T23:44:01
DIVA代码_doi：10.5281/zenodo.7016823
DIVA参考文献：Barth, A., Beckers, J.-M., Troupin, C., Alvera-Azcarate, A., and Vandenbulcke, L. (2014): divand-1.0: n-dimensional variational data analysis for ocean observations, Geosci. Model Dev., 7, 225-241, doi: 10.5194/gmd-7-225-2014
DIVAnd源：https://github.com/gher-uliege/DIVAnd.jl
DIVAnd版本：v2.7.9
doi：https://doi.org/10.13120/2de6ba50-b87a-11ed-05ae-bf5207749019
最东经：36.5
文件名：By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc
地理空间纬度最大值：46.0
地理空间纬度最小值：30.0
地理空间纬度分辨率：0.125
地理空间纬度单位：北纬度
地理空间经度最大值：36.5
地理空间经度最小值：-7.0
地理空间经度分辨率：0.125
地理空间经度单位：东经度
历史：Fri Sep 1 10:08:58 2023: ncks -O Water_body_dissolved_oxygen_concentration.4Danl.nc Water_body_dissolved_oxygen_concentration.4Danl.nc
id：DatasetScan/emodnet-domains/By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc
infoUrl：http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc.html
机构：HCMR/HNODC
机构_urn：SDN:EDMO::269
关键词词汇：GCMD科学关键词
NCO：netCDF Operators版本4.9.9（主页 = http://nco.sf.net，代码 = https://github.com/nco/nco）
最北纬：46.0
参数关键词：水体溶解氧浓度
参数关键词_urn：SDN:P35::EPC00002
产品代码：HNODC-Mediterranean Sea-Water body dissolved oxygen concentration-v2023-ANA
产品_id：2de6ba50-b87a-11ed-05ae-bf5207749019
项目：EMODnet化学第五阶段
搜索关键词：水柱中溶解氧参数
搜索关键词_urn：SDN:P02::DOXY
来源：SeaDataNet/EMODnet化学数据网络观测数据
来源Url：http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Mediterranean_Sea/Water_body_dissolved_oxygen_concentration.4Danl.nc
最南纬：30.0
标准名称词汇：CF标准名称表v70
时间覆盖结束：2090-11-15T00:00:00Z
时间覆盖开始：2044-02-16T00:00:00Z
WEB可视化：https://emodnet.ec.europa.eu/geoviewer
最西经：-7.0