- Reference Network
Products and Data
- Products and Data Overview
- CarbonTracker CH4
- Current Trends in CO2
- Current Trends in CH4
- Observation Package
- Marine Boundary Layer Reference
- Annual Greenhouse Gas Index
- Data Visualization
- Search for Datasets
- Data Archive
- Data Policy
- Reference Gas Calibrations
- WMO Standard Gas Comparisons
GLOBALVIEW data products consist of several hundred text files. Encoded in each file name is the sampling location, platform, and strategy, contributing laboratory, file content, and gas identifier. All file names use the following naming scheme:
(ex) brw_, poc_, car_, amt_
Data may be grouped by date, latitude, longitude, altitude, averaging period, etc.
If data are grouped by date then identifier has yyyy[mm][dd] format.
(ex) brw2005_, amt200403_, lef20050315_
If the sampling platform is an aircraft then the identifier is a
3-character numeric field with units of 102 meters (hm) above sea level.
(ex) car040_, haa005_
If the sampling platform is a ship then the identifier is a 3-character
alphanumeric field with units of degrees (00-90). Bins in the northern
and southern hemispheres are denoted as n## and s## respectively. The
equatorial bin is denoted as 000.
(ex) pocs25_, poc000_, scsn03_
If data are grouped by daytime or nighttime, the identifier is a
3-character alphanumeric field. Applies to continuous measurements only.
(ex) nwrdta_ [daytime average]
(ex) nwrnta_ [nighttime average]
[Measurement Laboratory ID Number]
A two character numeric field identifies the measurement laboratory (01-99).
NOAA ESRL is lab number 1 (See Lab IDs).
(ex) pocs25_01, alt_06, aia_02D2
A single alphanumeric character (0-9,a-z,A-Z) indicates the sampling strategy.
_??C Quasi-continuous _??D Discrete Flask _??P Discrete Flask Package
(ex) pocs25_01D, alt_06C, aia_02D
A single alphanumeric character (0-9,a-z,A-Z) indicates the sampling platform.
_???0 Single Fixed Surface Site _???1 Ship _???2 Aircraft _???3 Tower
(ex) sis_02D0, pocs25_01D1, frd040_06C3, aia005_02D2
[File Content Qualifier]
An alphanumeric string describes the type of data included in the file.
_????_ext Extended Record _????_wts Extension Weights _????_var Atmospheric Variability Statistics _????_seas Seasonal Pattern Statistics _????_diu Diurnal Pattern Statistics _????_tod Sampling Time-of-Day Statistics _????_mtx MBL Reference Matrix
(ex) sis_02D0_ext, pocs25_01D1_tod, frd040_06C3_diu, ref_mbl_mtx
Identifies the trace gas species.
_????_???.co2 Carbon Dioxide _????_???.ch4 Methane _????_???.co Carbon Monoxide _????_???.co2c13 δ13C (CO2)
(ex) sis_02D0_ext.co2, pocs25_01D1_tod.co2c13, frd040_06C3_diu.ch4, ref_mbl_mtx.co
|cgo_02D0_ext.co2||Extended record derived from CSIRO discrete CO2 measurements at Cape Grim.|
|mlo_01D0_ext.co2c13||Extended record derived from INSTAAR/NOAA δ13C (CO2) discrete measurements at Mauna Loa.|
|mlo_01C0_ext.ch4||Extended record derived from ESRL continuous CH4 measurements at Mauna Loa.|
|wlg_33C0_var.co2||Average atmospheric variability of CO2 derived from CAMS continuous measurements at Mt. Waliguan, China.|
|pocn30_01D1_wts.co2||Extension weight file derived from ESRL discrete CO2 measurements from POC centered at 30°N.|
|poc000_01D1_wts.co||Extension weight file derived from ESRL discrete CO measurements from POC centered at the equator.|
|orl035_11D2_seas.co2||Average seasonal cycle derived from the LSCE discrete CO2 measurements from aircraft. Altitude bin is centered at 3.5 km.|
|orl035_11D2_tod.co2||Average sampling time-of-day from the LSCE CO2 discrete measurements from aircraft. Altitude bin is centered at 3.5 km.|
|lef011_01C3_diu.co2||Average diurnal cycle derived from ESRL continuous CO2 measurements from a tower. Sampling height is 11 m.|