AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites, Version 1

Data set id:

NSIDC-0094

DOI: 10.5067/HQ0AYEDLYUYJ

Data Citation and Acknowledgment
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility.

Fowler, C., Maslanik, J., Haran, T., Scambos, T., Key, J. & Emery, W. (2002). AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites. (NSIDC-0094, Version 1). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. https://doi.org/10.5067/HQ0AYEDLYUYJ. [describe subset used if applicable]. Date Accessed 12-14-2024.

Copied

Other standard citation formats may be found on the DOI Citation Formatter website.

Describing subset: When applicable, include the information a reader would need to extract the same subset at the end of your citation. If multiple or complex steps were incolved, it may be more appropriate to include this information in the paper itself.

See our Citation Policies for more details about how to structure your data citation.

This data set has been retired.

Overview

NOTE: This data set is retired and no longer available for download, due to errors in the data. It has been superseded by the Extended AVHRR Polar Pathfinder (APP-x) data set available at:https://nsidc.org/data/nsidc-0746The following information is provided for provenance: The AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites are a collection of products for both poles, consisting of twice-daily gridded and calibrated satellite channel data and derived parameters. Data include five Advanced Very High Resolution Radiometer (AVHRR) channels, clear sky surface broadband albedo and skin temperature, average albedo and temperature, valid fraction file, solar zenith angle, satellite elevation angle, sun-satellite relative azimuth angle, surface type mask, cloud mask, cloud fraction files, and Universal Coordinated Time (UTC) of acquisition. The 25 km data are derived from the AVHRR Polar Pathfinder Twice-Daily 5 km EASE-Grid Composites, and extend poleward from 48.4 degrees north and 53.2 degrees south latitudes, spanning July 1981 through December 2000. Data are in 1-byte and 2-byte integer grid format and are available by FTP.

Parameter(s):

ALBEDOCLOUD AMOUNT/FREQUENCYINFRARED RADIANCELAND SURFACE TEMPERATURESKIN TEMPERATURETHERMAL INFRAREDTHERMAL PROPERTIESVIEWING GEOMETRYVISIBLE RADIANCE

Platform(s):

NOAA-11, NOAA-14, NOAA-7, NOAA-9

Sensor(s):

AVHRR

Data Format(s):

Binary, Binary

Temporal Coverage:

24 July 1981 to 31 December 2000

Temporal Resolution:

12 hour

Spatial Resolution:

Not Specified

Spatial Coverage:

N:

90

S:

48.4

E:

180

W:

-180

N:

-53.2

S:

-90

E:

180

W:

-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

View Metadata Record

Data Access & Tools

This data set has been retired. Please contact user services if you have questions.

Documentation

User Guide

AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites

Help Articles

How to Articles

Programmatic Access Guide for Data on daacdata.apps

Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system. We provide basic command line Wget and curl instructions for HTTPS file system downloads below.