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    14-Feb-2012
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MERIS User Guide

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2.10 Latency, Throughput and Data Volume

The following table shows:

· the time between acquisition and availability to end-users

· measurements per orbit and product throughput

· product size

for each MERIS product.

Table 2.21 - MERIS product details.

Product ID

Description

Delivery Time

Throughput

Product size

MER_RR_0P

Level 0 Reduced Resolution Product

The product is produced systematically and the NRT version of the product
is available within 3 hours of data acquisition from the PDHS. The OFL (fully consolidated) version of the product is available from the LRAC 2 weeks after acquisition.

1 product per orbit. Satellite data generation at 1.6 Mbps

max. 522 MB/product (43.5 min. × 1.6 Mbit/s).

MER_FR__0P

Level 0 Full Resolution Product

NRT version of the product is available within 1 day of data acquisition from the PDHS. The OFL (fully consolidated) version of the product available from the PAC 2 weeks after acquisition.

Variable as data is acquired upon request. Satellite data generation at 24 Mbps. Up to 12.5 minutes/orbit to PDHS-K, 20, minutes / orbit to PDHS-E, and 12.5 minutes /orbit to PDAS.

max. 3600 MB/orbit [24 Mbit/s for 20 minutes] to PDHS-E, or
max. 2250 MB for 12.5 minutes per orbit at PDHS-K.
Max file size is 2 GB, thus when larger, product divided across several
files, each with own MPH and SPH

MER_CA__0P

MERIS Calibration Level 0 Product

NRT version of the product is available within 3 hours of data acquisition
from the PDHS. The OFL (fully consolidated) version of the product is available from the LRAC 2 weeks after acquisition

performed on demand at a weekly to monthly rate. Calibration sequence takes approximately 160 seconds. Satellite data generation at 1.6 Mbps.

approx. 160 s × 1.6 Mbit/s = 32 MB/product.

MER_RR__1P

MERIS Reduced Resolution Geolocated and Calibrated TOA Radiance Product

NRT version is available from the PDHS 3 hours after data acquisition. The OFL (fully consolidated) version is available 2 weeks after acquisition form the LRAC.

1 per orbit

approx 40 MB per 1165 by 1300 km scene (1121 pixels × 1121 lines × 32 bytes/pixel)up to 521 MB/orbit (1165 km × 17400 km × 15 bands + 1 annotation band + auxiliary information appended)

MER_FR__1P

MERIS Full Resolution Geolocated and Calibrated TOA Radiance Product

NRT version available 1 day after data acquisition, OFL (fully consolidated version) available 2 weeks after acquisition.

Variable as data is acquired upon request. Up to 12.5 minutes/orbit to PDHS-K, 20, minutes/orbit to PDHS-E, and 12.5 minutes/orbit to PDAS.

161 MB/scene; 41 MB/imagette.

MER_RR__2P

MERIS Reduced Resolution Geophysical Product

NRT version of the product is available from the PDHS 3 hours after data acquisition. The OFL (fully consolidated) version is available from the LRAC 2 weeks after data acquisition

1 product per orbit

max. 621 MB/ 43.5 min product, approx. 46 MB per 1165 km by 1300 km floating scene

MER_FR__2P

MERIS Full Resolution Geophysical Product

NRT version available 1 day after data acquisition, OFL (fully consolidated version) available 2 weeks after acquisition.

Variable as data is acquired upon request. Up to 12.5 minutes/orbit to PDHS-K, 20, minutes/orbit to PDHS-E, and 12.5 minutes/orbit to PDAS.

186 MB/scene typically (582 km × 650 km). 50 MB per imagette (300 km × 334 km).

MER_LRC_2P

MERIS Extracted Cloud Thickness and Water Vapour for Meteo Users

This product is available in NRT form only, from the PDHS, 3 hours after data acquisition

1 product per orbit.

Max. 9 MB/product

MER_RRC_2P

MERIS Extracted Cloud Thickness and Water Vapour

This product is available in NRT form only, from the PDHS, 3 hours after data acquisition

1 product per orbit.

Max. 108 MB/product

MER_RRV_2P

MERIS Extracted Vegetation Indices

This product is available in NRT form only, from the PDHS, 3 hours after data acquisition

1 product per orbit.

Max. 91 Mb/product

MER_RR__BP

MERIS browse image (for both FR and RR products)

NRT product available from PDHS within 3 hours from data acquisition

1 product per orbit

max 4 MB (full orbit)



Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry