Independent Variables (Grids)

Lead (forecast_period)	grid: /L (months) ordered (0.5 months) to (11.5 months) by 1.0 N= 12 pts :grid
Ensemble Member (realization)	grid: /M (unitless) ordered (1.0) to (10.0) by 1.0 N= 10 pts :grid
Pressure Level (air_pressure)	grid: /P (hPa) ordered (200 hPa) to (850 hPa) N= 2 pts :grid
Pressure Level	grid: /P2 (hPa) ordered (500 hPa) to (200 hPa) N= 2 pts :grid
Forecast Start Time (forecast_reference_time)	grid: /S (months since 1960-01-01) ordered (0000 1 Jan 2011) to (0000 1 Jul 2019) by 1.0 N= 103 pts :grid
Longitude (longitude)	grid: /X (degree_east) periodic (0) to (1W) by 1.0 N= 360 pts :grid
Latitude (latitude)	grid: /Y (degree_north) ordered (90S) to (90N) by 1.0 N= 181 pts :grid

Other Info

ACKNOWLEDGEMENTS

In order to document NMME-Phase II data impact and enable continuing support, users of NMME data are expected to acknowledge NMME data and the participating modeling groups. The NMME model output should be referred to as "the NMME System Phase II data [https://www.earthsystemgrid.org/search.html?Project=NMME]." In publications, users should include a table (referred to below as Table XX) listing the models and institutions that provided model output used in the NMME-Phase II system, as well as the digital object identifier of publications documenting the models, where "Table XX" in the paper should list the models and modeling groups that provided the NMME data. In addition, an acknowledgement similar to the following should be included in any publication: "We acknowledge the agencies that support the NMME-Phase II system, and we thank the climate modeling groups (Environment Canada, NASA, NCAR, NOAA/GFDL, NOAA/NCEP, and University of Miami) for producing and making available their model output. NOAA/NCEP, NOAA/CTB, and NOAA/CPO jointly provided coordinating support and led development of the NMME-Phase II system." Besides the above acknowledgement, users should register any journal articles (or other scientific documents) that are based on NMME-Phase II results.

IMPORTANT

Users who accessed CMC1-CanCM3 and CMC2-CanCM4 FORECAST sea surface temperature (sst) and reference temperature (tref) variables between 23 Feb 2016 and 24 Oct 2016 for forecast start times before 1 Jan 2015 (start times between 1 Jan 2011 and 1 Dec 2014) from the IRI Data Library NMME archive should be aware that they may have downloaded data indexed with the wrong start time (12-month shift) due to a data archiving error. This error was corrected in this dataset as of 24 Oct 2016.

References

Kirtman, Ben P., and Coauthors, 2014: The North American Multimodel Ensemble: Phase-1 seasonal-to-interannual prediction; Phase-2 toward developing intraseasonal prediction. Bull. Amer. Meteor. Soc., 95, 585–601. doi: http://dx.doi.org/10.1175/BAMS-D-12-00050.1

Last updated: Tue, 08 Dec 2020 21:55:17 GMT