NLDAS depictions of precipitation and soil moisture in Louisiana and Florida

A LIS blog post was recently published using the NLDAS-2 datasets to examine recent rain and flooding events in Louisiana and Florida in August and September 2016.

Twitter feed for NASA's Land Information System (LIS)

Please follow the @NASA_LIS Twitter feed. NASA's LIS (Land Information System) software framework is used for the LDAS datasets at NASA/GSFC. The LIS Twitter feed will be used to announce new and updated NLDAS and other LDAS products as well as stories/studies using LIS-based LDAS datasets.

NOAA Drought Task Force 2016 report

The NOAA Drought Task Force released a report in Feb. 2016 entitled "Research to Advance National Drought Monitoring and Prediction Capabilities". This report describes the current stage of drought science and research, and details NOAA Drought Task Force activites. These activites include NLDAS development and drought monitoring.

NLDAS and GLDAS Time Series "Data Rods" Datasets now available

A set of variables from the NLDAS and GLDAS projects are now available as time series. These "data rods" datasets allow the access of the data in a long time series at a single point - without having to download the entire files. Access to the time series data is very quick, and is available as a plot or in ASCII format. A prototype to get the data in netCDF format is also available for testing. Please see the Data Rods News Article as well as documentation and how to access the Data Rods data.

NLDAS Drought Monitor talk as part of the NASA Goddard Sciences and Exploration Directorate Director's Seminar series

A talk on the current state of the NLDAS Drought Monitor as well as the future development of NLDAS, including updated LSMs and data assimilation, can be found here.

NLDAS-2 part of NCEP Central Operations

NCEP implemented the NLDAS-2 system into NCEP Central Operations (NCO) on 5 Aug 2014. The NLDAS-2 products are available in GRIB-2 format. Operational users are encouraged to use the NCEP/NCO GRIB-2 products. GRIB-1 products, including near real-time updates and a complete archive, will continue to be available at the NASA Hydrology DISC. Note that these GRIB-1 updated products are only available in the NASA GES DISC format. Please see the NLDAS-2 Transition Plan. NCEP's NLDAS ftp server has a new address - - and will serve as an archive of the NCEP/NCO GRIB-2 operational products. More information about this significant milestone, including the transition of research to operations (R2O), please see this Science Highlight.

NLDAS datasets are available from the NASA Hydrology Data and Information Services (HDISC) within the Goddard Earth Sciences Data and Information Services Center (GES DISC)

The Hydrology DISC portal enables access to hourly, monthly, and monthly climatology NLDAS datasets via ftp, GDS, Mirador, and Giovanni. Users can also perform subsetting and analysis operations without first downloading the data. All NLDAS datasets are now available to be downloaded in NetCDF format (as well as in the native GRIB-1 format). Phase 1 forcing, Phase 2 primary and secondary forcing, Phase 2 Mosaic, Phase 2 Noah, and Phase 2 VIC datasets are available. See the NLDAS-1 README and NLDAS-2 README files for details about the creation and content of these datasets, as well as the FAQ.

LDAS Mailing List

Users of NLDAS datasets are encouraged to join the LDAS mailing list for updates on new data releases, new data services, data reprocessing, and data delays or outages.

NLDAS data usage at the GES DISC

    Distribution of all NLDAS products from the NASA GES DISC for calendar year 2015:
  • Number of Distinct users: 5,392
  • Number of Files: 71,645,757 (over 71 million)
  • Total Volume: 144,661 Gb (over 144 Tb)
    For calendar year 2014:
  • Number of Distinct users: 5,437
  • Number of Files: 44,119,161 (over 44 million)
  • Total Volume: 93,459 Gb (over 93 Tb)
    For calendar year 2013:
  • Number of Distinct users: 4,868
  • Number of Files: 36,148,624 (over 36 million)
  • Total Volume: 66,160 Gb (over 66 Tb)

NLDAS Phase 2 publications

Numerous NLDAS Phase 2 articles have been recently published; please check the NLDAS publications page.

NLDAS Daily Sunlight

The Centers for Disease Control and Prevention (CDC) has produced county-level daily sunlight (insolation or solar radiation) observations spanning the years 1979-2011, based on the NLDAS Phase 2 forcing. Data is available through CDC WONDER (Wide-ranging Online Data for Epidemiologic Research). Variables available include the average daily insolation, the number of observations, and the range for the daily insolation values. Data are available by place (combined 48 contiguous states plus the District of Columbia, region, division, state, county), by time (year, month, day), and by specified daily sunlight value.

NLDAS-2 streamflow data, SAC LSM soil moisture data, and Noah Interim data available

NOAA/EMC's NLDAS group has released the following three items:

NLDAS snow cover, hurricane, heat wave, and cold season studies

NLDAS datasets were used to compare winter 2011-2012 with winter 2010-2011 for snow cover and surface temperature. A poster depicting extreme weather/climate events over North America during 2011 was presented at the AGU Chapman conference. NLDAS datasets were used to illustrate the precipitation and soil moisture along the east coast of the U.S. following the passage of Hurricane Irene and of Tropical Storm Lee, as well as the intensity of the heat wave in the central U.S. during July 2011. NLDAS datasets were used to examine the cold spring of 2013 over the United States.

NLDAS summertime precipitation study

NLDAS precipitation datasets were used to study the diurnal cycle of summertime precipitation. A news story and a science focus article describe the research. The full article was published in Geophysical Research Letters.

NLDAS drought monitor located at NOAA/NCEP/EMC

The near real-time NLDAS drought monitor is now located at NOAA/NCEP/EMC.