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LANCE-MODIS

ABOUT DATA PRODUCTS USER SERVICES

Overview

Welcome to the LANCE-MODIS data system operated by the GSFC Terrestrial Information Systems Laboratory, Code 619. LANCE-MODIS provides certain Aqua and Terra MODIS L0, L1, L2, L2G, and L3 products on a near-real-time basis. On average, the MODIS L1 and L2 products are available within 3 hours of the observation time. Data products may be accessed from the FTP site.

LANCE-MODIS produces Collections 5 and 6 (C5 and C6) MODIS land and atmosphere NRT products, which are very similar to the standard MODIS products with some minor differences; these differences (described in the About section) facilitate their shortened production schedules. We currently provide both the earlier C5 and the more recent C6 collections as we transition from one to the other. C6 represents the best quality MODIS science products to date. Hence, users are strongly encouraged to switch to using C6 products as soon as is feasible, since we plan to phase out C5 production before the end of 2016.

LANCE-MODIS is part of a larger system, called LANCE (Land, Atmosphere Near-real-time Capability for EOS, see https://earthdata.nasa.gov/earth-observation-data/near-real-time), which includes four near-real-time systems: the GES DISC AIRS and MLS systems, the OMI SIPS, AMSR SIPS, and this system.

About
Detailed information about LANCE-MODIS including the hardware configuration, the data flows, and metrics.

Data Products
Information about LANCE-MODIS data products including latency information, PGE versions, and a comparison of NRT and standard products.

Collection 6 Data Products
Information about LANCE-MODIS collection 6 data products.

Known Issues
Known issues with LANCE-MODIS data products.

User Services
Contact information for LANCE-MODIS user services.

Registration
Users must register before accessing LANCE-MODIS data products on the FTP Site.

News
2016.08.26 - LAADS VIIRS and MODIS Disks Going Down for Maintenance 2016-09-01
Certain LAADS archive hosts and disks will be taken down for maintenance on Thursday, 01 Sep 2016 for the whole day.
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2016.08.15 - Lance-MODIS and Forward Terra 2016-08-13+ C6 PGE02+ reprocessing
Beginning Saturday (2016-08-13) C6 Terra PGE02 was run in forward production (lads) and Lance-MODIS (nrt3) with an incorrect set of coefficients.
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2016.08.11 - Lance-MODIS Aqua 0625-0645z reprocessing
Near Real Time Aqua data between about 2016-08-11 06:25 and 06:45z has been reprocessed as data in this time period was produced with an Aqua L0 (MYD00S) input that was missing data in this time range, and MYD00S has since been resent to us with the missing data included.
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2016.08.09 - 0449z to 08-09 2049z Aqua L0 issue (update)
Lance-MODIS NRT and LAADS forward Aqua production were impacted by an issue making Aqua L0 unusable from 2016-08-08 0449z to 08-09 2049z.
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2016.08.05 - LAADS MODIS and VIIRS Disks Going Down for Maintenance 2016-08-11
Certain LAADS archive hosts and disks will be taken down for maintenance on Thursday, 11 Aug 2016 for the whole day.
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2016.07.31 - Lance-MODIS Terra DMU #97 (Waived)
Maneuver Terra DMU #97 is scheduled for 2016-07-31 03:40-07:10 (LPA).
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2016.07.30 - Lance-MODIS nrt1 hardware issues (fixed)
Fixed: The nrt1 distribution host is experiencing hardware (disk) errors on one of two disks today.
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2012.09.10 - NRL-UND product
The Naval Research Laboratory and the University of North Dakota developed a value-added aerosol optical depth dataset based on MODIS Level 2 aerosol products. The NRL-UND product is a level 3 gridded product specifically designed for quantitative applications including data assimilation and model validation. This dataset has been given the ESDT identifier MxDAODHD
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