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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.6
attribute NC_GLOBAL acknowledgement String Funding and support provided by the National Science Foundation
attribute NC_GLOBAL cdm_data_type String Trajectory
attribute NC_GLOBAL cdm_trajectory_variables String study_name
attribute NC_GLOBAL comment String The Palmer, Antarctica, Long-Term Ecological Research project is a member site of the Long-Term Ecological Research program, a network of sites investigating diverse biomes.  A team of researchers seeks to understand the structure and function of the Western Antarctic Peninsula's marine and terrestrial ecosystems in the context of seasonal-to-interannual atmospheric and sea ice dynamics, as well as long-term climate change. The PAL measurement system (or grid) is designed to study marine and terrestrial food webs consisting principally of diatom primary producers, the dominant herbivore Antarctic krill, and the apex predator Adelie penguin. An attenuated microbial food web is also a focus. PAL studies these ecosystems annually over a regional scale grid of oceanographic stations and seasonally at Palmer Station. \\n\\nPalmer Station is located on Anvers Island west of the Antarctic Peninula. The peninsula runs perpendicular to a strong climatic gradient between the cold, dry continental regime to the south, characteristic of the Antarctic interior, and the warm, moist, maritime regime to the north. North-south shifts in the gradient give rise to large environmental variability to climate change. Sea ice extent and variability affects ecosystem changes at all trophic levels.  In addition to the long-term field and research activities, information management, graduate student training,  education and outreach are an integral part of the program.
attribute NC_GLOBAL contributor_email String hducklow@ldeo.columbia.edu,mvernet@ucsd.edu,prezelin@lifesci.ucsb.edu
attribute NC_GLOBAL contributor_name String Hugh Ducklow,Maria Vernet,Barbara Prezelin
attribute NC_GLOBAL contributor_role String PrincipalInvestigator,PrincipalInvestigator,PrincipalInvestigator
attribute NC_GLOBAL contributor_role_vocabulary String https://vocab.nerc.ac.uk/collection/G04/current/ (external link)
attribute NC_GLOBAL Conventions String CF-1.8, ACDD-1.3, COARDS
attribute NC_GLOBAL creator_country String USA
attribute NC_GLOBAL creator_email String kerfoot at marine.rutgers.edu
attribute NC_GLOBAL creator_institution String Rutgers University
attribute NC_GLOBAL creator_name String John Kerfoot
attribute NC_GLOBAL creator_sector String academic
attribute NC_GLOBAL creator_type String person
attribute NC_GLOBAL creator_url String https://rucool.marine.rutgers.edu (external link)
attribute NC_GLOBAL datazoo_dataset_id String 27
attribute NC_GLOBAL datazoo_datatable_id String 27
attribute NC_GLOBAL datazoo_datatable_label String Dissolved Inorganic Nutrients (Cruise)
attribute NC_GLOBAL datazoo_datatable_name String DissolvedInorganicNutrients
attribute NC_GLOBAL date_created String 2022-03-22T22:56:02Z
attribute NC_GLOBAL date_issued String 2022-03-22T22:56:02Z
attribute NC_GLOBAL defaultDataQuery String null
attribute NC_GLOBAL doi String https://doi.org/10.6073/pasta/9611089f65d3cbd0801204d174eee947 (external link)
attribute NC_GLOBAL Easternmost_Easting double -38.89873
attribute NC_GLOBAL featureType String Trajectory
attribute NC_GLOBAL geospatial_bounds_crs String EPSG:4326
attribute NC_GLOBAL geospatial_bounds_vertical_crs String EPSG:5831
attribute NC_GLOBAL geospatial_lat_max double -62.0672
attribute NC_GLOBAL geospatial_lat_min double -70.08833
attribute NC_GLOBAL geospatial_lat_resolution String 0.00001 degree
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -38.89873
attribute NC_GLOBAL geospatial_lon_min double -78.90083
attribute NC_GLOBAL geospatial_lon_resolution String 0.00001 degree
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 5000.0
attribute NC_GLOBAL geospatial_vertical_min double -1.49
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL history String /Users/kerfoot/data/lter/data/tsv/dat_27/dat_27_PD97-01.tsv
attribute NC_GLOBAL infoUrl String https://pal.lternet.edu/ (external link)
attribute NC_GLOBAL institution String National Science Foundation
attribute NC_GLOBAL keywords String biogeochemistry, decomposition, ecology, ecosystems, food webs, habitats, ice, Inorganic Matter, inorganic nutrients, marine, measurements, nitrate, nutrients, phytoplankton
attribute NC_GLOBAL keywords_vocabulary String LTER Core Areas,LTER Controlled Vocabulary
attribute NC_GLOBAL license String All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/) (external link). In accordance with scientific publishing conventions and professional etiquette, the consumer of these data (the \"Data User\") is expected to appropriately cite these data in any publication that results from their use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur and should realize that misinterpretation of data may occur if used out of context of the original study. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the data authors. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available \"as is.\" The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.
attribute NC_GLOBAL license_link String https://lternet.edu/data-access-policy/ (external link)
attribute NC_GLOBAL methods String Sampling Methods: Water samples are typically collected from all Niskin bottles on every CTD/Rosette cast performed during a cruise. Water samples are gravity-filtered through ashed GFF filters by inline filtration from the Niskin bottles, into new clean plastic 13-mL centrifuge tubes. Samples in tubes are frozen at -20C until return to the home laboratory in the USA for subsequent analysis.\\t
attribute NC_GLOBAL naming_authority String edu.rutgers.rucool
attribute NC_GLOBAL Northernmost_Northing double -62.0672
attribute NC_GLOBAL product_version String 1.0
attribute NC_GLOBAL program String LTER
attribute NC_GLOBAL project String Palmer LTER
attribute NC_GLOBAL publisher_country String USA
attribute NC_GLOBAL publisher_email String kerfoot at marine.rutgers.edu
attribute NC_GLOBAL publisher_institution String Rutgers University
attribute NC_GLOBAL publisher_name String John Kerfoot
attribute NC_GLOBAL publisher_type String person
attribute NC_GLOBAL publisher_url String https://rucool.marine.rutgers.edu (external link)
attribute NC_GLOBAL references String https://pal.lternet.edu/ (external link)
attribute NC_GLOBAL sea_name String Southern Ocean
attribute NC_GLOBAL source String /Users/kerfoot/data/lter/data/tsv/dat_27/dat_27_LMG14-01.tsv
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -70.08833
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v77
attribute NC_GLOBAL subsetVariables String study_name, irradiance, phosphate, nitrite, nitrate
attribute NC_GLOBAL summary String Dissolved inorganic nutrients including 5 macro nutrients: silicate, phosphate, nitrate, nitrite, and ammonium from water column bottle samples collected during annual cruise along western Antarctic Peninsula, 1991 - 2019. The inorganic plant macronutrients dissolved phosphate, silicate, nitrate, nitrite and ammonium are the major sources of nutrition for phytoplankton growth in seawater (with sunlight and inorganic carbon). Macronutrient distributions reflect the large-scale circulation patterns in the oceans and are useful properties to delineate water masses. Dissolved inorganic nutrients samples are typically collected in every Conductivity, Temperature, Depth (CTD)/Rosette cast performed on the annual LTER cruises along the western Antarctic Peninsula. Water samples are analyzed for dissolved nutrients with recognized standard oceanographic protocols for nutrient autoanalyzers (continuous flow analyzers). In Antarctic waters, dissolved inorganic macronutrients are seldom depleted to limiting concentrations except during heavy prolonged phytoplankton blooms. This is due to the fact that phytoplankton growth is more often limited by light or iron, and to the short growing season. .The inorganic plant macronutrients dissolved phosphate, silicate, nitrate, nitrite and ammonium are the major sources of nutrition for phytoplankton growth in seawater (with sunlight and inorganic carbon). Macronutrient distributions reflect the large-scale circulation patterns in the oceans and are useful properties to delineate water masses. Dissolved inorganic nutrients samples are typically collected in every CTD/Rosette cast performed on the annual LTER cruises along the western Antarctic Peninsula. Water samples are analyzed for dissolved nutrients with recognized standard oceanographic protocols for nutrient autoanalyzers (continuous flow analyzers). In Antarctic waters, dissolved inorganic macronutrients are seldom depleted to limiting concentrations except during heavy prolonged phytoplankton blooms. This is due to the fact that phytoplankton growth is more often limited by light or iron, and to the short growing season. .The inorganic plant macronutrients dissolved phosphate, silicate, nitrate, nitrite and ammonium are the major sources of nutrition for phytoplankton growth in seawater (with sunlight and inorganic carbon). Macronutrient distributions reflect the large-scale circulation patterns in the oceans and are useful properties to delineate water masses. Dissolved inorganic nutrients samples are typically collected in every CTD/Rosette cast performed on the annual LTER cruises along the western Antarctic Peninsula. Water samples are analyzed for dissolved nutrients with recognized standard oceanographic protocols for nutrient autoanalyzers (continuous flow analyzers). In Antarctic waters, dissolved inorganic macronutrients are seldom depleted to limiting concentrations except during heavy prolonged phytoplankton blooms. This is due to the fact that phytoplankton growth is more often limited by light or iron, and to the short growing season.
attribute NC_GLOBAL time_coverage_end String 2018-02-04T11:03:16Z
attribute NC_GLOBAL time_coverage_start String 1991-11-07T00:36:00Z
attribute NC_GLOBAL title String Dissolved inorganic nutrients including 5 macro nutrients: silicate, phosphate, nitrate, nitrite, and ammonium from water column bottle samples collected during annual cruise along western Antarctic Peninsula, 1991, 2019.
attribute NC_GLOBAL Westernmost_Easting double -78.90083
variable study_name String
attribute study_name cf_role String trajectory_id
attribute study_name column_name String studyName
attribute study_name comment String Cruise name
attribute study_name ioos_category String Identifier
attribute study_name long_name String Study
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 6.8947416E8, 1.517742196E9
attribute time axis String T
attribute time calendar String proleptic_gregorian
attribute time column_id long 457
attribute time column_name String col_457
attribute time ioos_category String Time
attribute time long_name String Time
attribute time lter_column_description String date and time
attribute time lter_column_name String Datetime GMT
attribute time lter_mscale String dateTime
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable grid_line short
attribute grid_line _FillValue short 32767
attribute grid_line actual_range short -158, 901
attribute grid_line column_id long 460
attribute grid_line column_name String col_460
attribute grid_line ioos_category String Unknown
attribute grid_line long_name String Grid Line
attribute grid_line lter_column_description String line on a pre-defined survey grid in the LTER Palmer study area
attribute grid_line lter_column_name String Line
attribute grid_line lter_mscale String nominal
variable station short
attribute station _FillValue short -32767
attribute station actual_range short -99, 260
attribute station column_id long 461
attribute station column_name String col_461
attribute station ioos_category String Identifier
attribute station long_name String Station
attribute station lter_column_description String Palmer LTER sampling grid station
attribute station lter_column_name String Station
attribute station lter_mscale String nominal
variable latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double 9.969209968386869E36
attribute latitude actual_range double -70.08833, -62.0672
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude column_id long 454
attribute latitude column_name String col_454
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude lter_column_description String latitude measured from the equator in decimal degrees, South is negative
attribute latitude lter_column_name String Latitude
attribute latitude lter_mscale String ratio
attribute latitude lter_num_type String real
attribute latitude lter_units String º
attribute latitude lter_units_string String degree
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable longitude double
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double 9.969209968386869E36
attribute longitude actual_range double -78.90083, -38.89873
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude column_id long 455
attribute longitude column_name String col_455
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude lter_column_description String longitude measured from the Prime Meridian in decimal degrees, West is negative
attribute longitude lter_column_name String Longitude
attribute longitude lter_mscale String ratio
attribute longitude lter_num_type String real
attribute longitude lter_units String º
attribute longitude lter_units_string String degree
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable depth double
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double 9.969209968386869E36
attribute depth actual_range double -1.49, 5000.0
attribute depth axis String Z
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth column_id long 502
attribute depth column_name String col_502
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth lter_column_description String measurement or sample collection distance from water column surface
attribute depth lter_column_name String Depth
attribute depth lter_mscale String ratio
attribute depth lter_num_type String real
attribute depth lter_units String m
attribute depth lter_units_string String meter
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
attribute depth units_conventions String AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER
variable cast_number double
attribute cast_number _FillValue double NaN
attribute cast_number actual_range double 1.0, 149.0
attribute cast_number colorBarMaximum double 100.0
attribute cast_number colorBarMinimum double 0.0
attribute cast_number column_id long 458
attribute cast_number column_name String col_458
attribute cast_number ioos_category String Statistics
attribute cast_number long_name String Cast Number
attribute cast_number lter_column_description String reference number for ship-based over-the-side deployed and lowered instrumentation
attribute cast_number lter_column_name String Cast
attribute cast_number lter_mscale String interval
attribute cast_number lter_num_type String natural
attribute cast_number lter_units_string String number
attribute cast_number missing_value double NaN
attribute cast_number units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable bottle byte
attribute bottle _FillValue byte -127
attribute bottle actual_range byte -128, 116
attribute bottle column_id long 324
attribute bottle column_name String col_324
attribute bottle ioos_category String Unknown
attribute bottle long_name String Bottle
attribute bottle lter_column_description String reference number of sample bottle from rosette
attribute bottle lter_column_name String Bottle
attribute bottle lter_mscale String interval
attribute bottle lter_num_type String natural
attribute bottle lter_units_string String number
attribute bottle units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable event short
attribute event _FillValue short 32767
attribute event actual_range short 1, 1311
attribute event column_id long 323
attribute event column_name String col_323
attribute event ioos_category String Unknown
attribute event long_name String Event
attribute event lter_column_description String sequence of cruise happenings ordered by time
attribute event lter_column_name String Event
attribute event lter_mscale String interval
attribute event lter_num_type String real
attribute event lter_units_string String number
attribute event units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable irradiance double
attribute irradiance _FillValue double 9.969209968386869E36
attribute irradiance actual_range double 0.5, 100.0
attribute irradiance colorBarMaximum double 100.0
attribute irradiance colorBarMinimum double 0.0
attribute irradiance column_id long 459
attribute irradiance column_name String col_459
attribute irradiance ioos_category String Unknown
attribute irradiance long_name String Irradiance
attribute irradiance lter_column_description String The ratio of two light measurements incident on horizontal surfaces at two locations.
attribute irradiance lter_column_name String Irradiance
attribute irradiance lter_mscale String ratio
attribute irradiance lter_num_type String real
attribute irradiance lter_units String %
attribute irradiance lter_units_string String percent
attribute irradiance units String percent
attribute irradiance units_conventions String BNZ-LTER,CAP-LTER,CDR-LTER,FCE-LTER,GCE-LTER,HBR-LTER,KNZ-LTER,MCM-LTER,NTL-LTER,NWT-LTER,PAL-LTER,PIE-LTER,SGS-LTER
variable phosphate double
attribute phosphate _FillValue double 9.969209968386869E36
attribute phosphate actual_range double -0.04, 72.333
attribute phosphate colorBarMaximum double 4.0
attribute phosphate colorBarMinimum double 0.0
attribute phosphate column_id long 317
attribute phosphate column_name String col_317
attribute phosphate ioos_category String Dissolved Nutrients
attribute phosphate long_name String Mole Concentration Of Phosphate In Sea Water
attribute phosphate lter_column_description String phosphate
attribute phosphate lter_column_name String [PO4]3-
attribute phosphate lter_mscale String ratio
attribute phosphate lter_num_type String real
attribute phosphate lter_units String µmol/L
attribute phosphate lter_units_string String micromolePerLiter
attribute phosphate standard_name String mole_concentration_of_phosphate_in_sea_water
attribute phosphate units String micromoles L-1
attribute phosphate units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable dissolved_inorganic_silicate double
attribute dissolved_inorganic_silicate _FillValue double 9.969209968386869E36
attribute dissolved_inorganic_silicate actual_range double -0.1, 246.915
attribute dissolved_inorganic_silicate colorBarMaximum double 50.0
attribute dissolved_inorganic_silicate colorBarMinimum double 0.0
attribute dissolved_inorganic_silicate column_id long 318
attribute dissolved_inorganic_silicate column_name String col_318
attribute dissolved_inorganic_silicate ioos_category String Dissolved Nutrients
attribute dissolved_inorganic_silicate long_name String Mole Concentration Of Silicate In Sea Water
attribute dissolved_inorganic_silicate lter_column_description String dissolved inorganic silicate
attribute dissolved_inorganic_silicate lter_column_name String [SiO4]4-
attribute dissolved_inorganic_silicate lter_mscale String ratio
attribute dissolved_inorganic_silicate lter_num_type String real
attribute dissolved_inorganic_silicate lter_units String µmol/L
attribute dissolved_inorganic_silicate lter_units_string String micromolePerLiter
attribute dissolved_inorganic_silicate standard_name String mole_concentration_of_silicate_in_sea_water
attribute dissolved_inorganic_silicate units String micromoles L-1
attribute dissolved_inorganic_silicate units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable nitrite double
attribute nitrite _FillValue double 9.969209968386869E36
attribute nitrite actual_range double -0.1, 7.539
attribute nitrite colorBarMaximum double 1.0
attribute nitrite colorBarMinimum double 0.0
attribute nitrite column_id long 319
attribute nitrite column_name String col_319
attribute nitrite ioos_category String Dissolved Nutrients
attribute nitrite long_name String Mole Concentration Of Nitrite In Sea Water
attribute nitrite lter_column_description String nitrite
attribute nitrite lter_column_name String [NO2]-
attribute nitrite lter_mscale String ratio
attribute nitrite lter_num_type String real
attribute nitrite lter_units String µmol/L
attribute nitrite lter_units_string String micromolePerLiter
attribute nitrite standard_name String mole_concentration_of_nitrite_in_sea_water
attribute nitrite units String micromoles L-1
attribute nitrite units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable nitrate double
attribute nitrate _FillValue double 9.969209968386869E36
attribute nitrate actual_range double -0.1, 46.66
attribute nitrate colorBarMaximum double 50.0
attribute nitrate colorBarMinimum double 0.0
attribute nitrate column_id long 320
attribute nitrate column_name String col_320
attribute nitrate ioos_category String Dissolved Nutrients
attribute nitrate long_name String Mole Concentration Of Nitrate In Sea Water
attribute nitrate lter_column_description String nitrate
attribute nitrate lter_column_name String [NO3]-
attribute nitrate lter_mscale String ratio
attribute nitrate lter_num_type String real
attribute nitrate lter_units String µmol/L
attribute nitrate lter_units_string String micromolePerLiter
attribute nitrate standard_name String mole_concentration_of_nitrate_in_sea_water
attribute nitrate units String micromoles L-1
attribute nitrate units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable ammonium double
attribute ammonium _FillValue double 9.969209968386869E36
attribute ammonium actual_range double -1.6, 56.0
attribute ammonium colorBarMaximum double 5.0
attribute ammonium colorBarMinimum double 0.0
attribute ammonium column_id long 321
attribute ammonium column_name String col_321
attribute ammonium ioos_category String Dissolved Nutrients
attribute ammonium long_name String Mole Concentration Of Ammonium In Sea Water
attribute ammonium lter_column_description String ammonium+ is an ionized form in water; NH3 is ammonia, unionized gaseous phase.
attribute ammonium lter_column_name String [NH4]+
attribute ammonium lter_mscale String ratio
attribute ammonium lter_num_type String real
attribute ammonium lter_units String µmol/L
attribute ammonium lter_units_string String micromolePerLiter
attribute ammonium standard_name String mole_concentration_of_ammonium_in_sea_water
attribute ammonium units String micromoles L-1
attribute ammonium units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable nitrite_and_nitrate double
attribute nitrite_and_nitrate _FillValue double 9.969209968386869E36
attribute nitrite_and_nitrate actual_range double 0.0, 47.8
attribute nitrite_and_nitrate colorBarMaximum double 50.0
attribute nitrite_and_nitrate colorBarMinimum double 0.0
attribute nitrite_and_nitrate column_id long 322
attribute nitrite_and_nitrate column_name String col_322
attribute nitrite_and_nitrate ioos_category String Dissolved Nutrients
attribute nitrite_and_nitrate long_name String Mole Concentration Of Nitrate In Sea Water
attribute nitrite_and_nitrate lter_column_description String nitrate and nitrite
attribute nitrite_and_nitrate lter_column_name String Nitrite and Nitrate
attribute nitrite_and_nitrate lter_mscale String ratio
attribute nitrite_and_nitrate lter_num_type String real
attribute nitrite_and_nitrate lter_units String µmol/L
attribute nitrite_and_nitrate lter_units_string String micromolePerLiter
attribute nitrite_and_nitrate standard_name String mole_concentration_of_nitrate_in_sea_water
attribute nitrite_and_nitrate units String micromoles L-1
attribute nitrite_and_nitrate units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable notes String
attribute notes column_id long 3629
attribute notes column_name String col_3629
attribute notes ioos_category String Unknown
attribute notes long_name String Notes
attribute notes lter_column_description String text field to describe a log entry (ex. event log)
attribute notes lter_column_name String Notes
attribute notes lter_mscale String nominal

 
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