Description:

The AMSU/MSU Lowstratosphere Day/Month Temperature Anomalies and Annual Cycle V6 dataset consists of temperature anomalies and annual cycle temperatures derived from the Microwave Sounding Unit (MSU) and the Advanced Microwave Sounding Unit-A (AMSU-A) radiance data since January 1978. All products are derived for the lower stratosphere. The dataset begins on January 1, 1978 and is still currently ongoing. The data are available in netCDF-4 and ASCII formats.

Links:

• Data link
• Metadata link
• Metadata link
• Metadata link
• Metadata link

Temporal Extent:

Start: 1978-01-01T00:00:00.000Z

Spatial Extent:

Minimum Bounding Rectangle: -90 -180 90 180

GHRC_DAAC Short Name: msutls Version ID: 6 Unique ID: C1996545162-GHRC_DAAC

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Description:

The AMSU/MSU Midtroposphere Day/Month Temperature Anomalies and Annual Cycle V6 dataset consists of temperature anomalies and annual cycle temperatures derived from the Microwave Sounding Unit (MSU) and the Advanced Microwave Sounding Unit-A (AMSU-A) radiance data since January 1978. All products are derived for the mid-troposphere. The dataset begins on January 1, 1978 and is still currently ongoing. The data are available in netCDF-4 and ASCII formats.

Links:

• Data link
• Metadata link
• Metadata link
• Metadata link
• Metadata link

Temporal Extent:

Start: 1978-01-01T00:00:00.000Z

Spatial Extent:

Minimum Bounding Rectangle: -90 -180 90 180

GHRC_DAAC Short Name: msutmt Version ID: 6 Unique ID: C1996545587-GHRC_DAAC

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Description:

The AMRC also collected a set of NOAA Polar Orbiting AVHRR Global Area Coverage (GAC) and Local Area Coverage (LAC) images from 7 December 1994 through August 1995, with scattered coverage to 26 March 1996. This lower resolution data set (three kilometers by five kilometers) is available from AMRC, though only the infrared window channel was archived.

Links:

• Data link
• Metadata link
• Metadata link
• Metadata link
• Metadata link
• SSEC-AMRC-NOAA-GAC

Temporal Extent:

Start: 1994-07-12T00:00:00.000Z

End: 1996-10-16T23:59:59.999Z

Spatial Extent:

Minimum Bounding Rectangle: -90 -180 -60 180

SCIOPS Short Name: SSEC-AMRC-NOAA-GAC Version ID: Not provided Unique ID: C1214608744-SCIOPS

Description:

AVHRR HRPT level 0 raw telemetry data are acquired at the Arctic and Antarctic Research Center (AARC) on selective passes by satellite receivers located at McMurdo Station, Antarctica (77 degrees, 51 minutes S, 166 degrees, 40 minutes E.) and Palmer Station, Antarctic Peninsula (64 degrees, 46 minutes S, 64 degrees, 4 minutes W.) Generally, most of the Antarctic continent and its coastline are covered daily. Swaths are 2250 kilometers long and generally start or end over the extreme South Pacific Ocean adjacent to the Ross Sea. Data collection from Palmer Station covers the land areas of West Antarctica, Southern South America, the South Atlantic including the Falkland Islands and the South Orkney Islands, and the Drake Passage and portions of the South Pacific Ocean. Continuous data collection at the McMurdo Station began on 26 October 1987. Data are also archived for 30 October 1985 - 2 December 1985 and for 30 October 1986 - 30 January 1987. Continuous data collection began at the Palmer Station 3 August 1989. The data resolution is 1100 meters at subtrack, 4000 - 6000 meters at limb; 360 scans per minute. Satellite revisit time is twice daily, however, due to the proximity to the South Pole, 14 passes a day are received at McMurdo and 10 passes a day are received at Palmer from each spacecraft. Data are acquired, archived, processed for requesters, and distributed by the Arctic & Antarctic Research Center (AARC). Processing of the raw data will depend on the requirements of the requester, but a typical sequence might be as follows: + Reformat raw data for extraction; up to 10 missing scan lines can be interpolated by the software. + Calibrate the reformatted data to convert from brightness values to temperature values. + Apply the moisture/atmospheric correction. + Register selected data to the user-specified grid. + Transfer to user-specified medium. Some examples are tape, diskette, photographic product, or file format for electronic transfer. About 95 percent of the presently archived data have been cataloged on our online directory. Data dropouts, caused by transmission interference due to solar flare activity, occur in some images; the processing software can smooth the data if fewer than 10 scan lines are missing. All archived images contain usable data. Processed data are binary byte arrays of user-defined size. Full spacecraft attitude correction and earth correction routines are applied to the raw data to create the products. Orbital elements, equator crossings, altitude and period of the spacecraft are generated for the raw data using the AARC scientific workstation. Data products can be gridded to a user-specified grid. Data are also available in raw form (10 bits of information stored in a 16 bit word) on 4mm DDS2 or DDS3 DAT cassettes or DLT7000 tapes. Users would need access to an 4mm DAT or DLT7000 reader. An alternative method to access the digital archive is to use the Sun Workstations located at the AARC, Scripps Institution of Oceanography. AARC personnel can be contacted for access information.

Links:

• FE09004A

Temporal Extent:

Start: 1987-10-26T00:00:00.000Z

Spatial Extent:

Minimum Bounding Rectangle: -90 -180 -50 180

SCIOPS Short Name: FE09004A Version ID: Not provided Unique ID: C1214584927-SCIOPS

Description:

The National Oceanographic and Atmospheric Administration (NOAA) has been operating its Advanced Tiros-N (ATN) series of satellites since October 1978. Carrying the Tiros Operational Vertical Sounder (TOVS), a low-data-rate atmospheric sounding package, and the Advanced Very-High Resolution Radiometer (AVHRR), these satellites were designed primarily for meteorological applications, but the AVHRR instrument, in particular, has proved very valuable in a variety of environment linked earth observation applications, such as: drought early warning regional and global vegetation monitoring snow and ice mapping dynamic oceanography hydrology geology detection of forest fires, gas flares and agricultural burning fire fuel mapping volcanology air and sea pollution monitoring toxic algal bloom detection continental scale mapping (less than 1:3,000,000). Eurimage distributes AVHRR data from NOAA, acquired from the TIROS satellites and received mainly at ESA ground stations. Coverage of Europe, Africa, the Middle East and parts of the Far East is provided, as shown in the sketch map below. With at least two satellites operational at any one time, each with a daily repeat cycle, twice daily and twice nightly coverage is possible for any point on the equator and approximately double this number (8 passes in total) at mid-latitudes. TIROS / AVHRR Technical Summary Orbit Launch Altitude Inclination 1979 840 km 98.7=B0- 98.9=B0 Sensors band (=B5m) 1 2 3 4 5 AVHRR/1 .55-.90 .72-1.0 3.55-3.93 10.5-11.5 GSD (m) 1000 1000 1000 1000 AVHRR/2 .58-.68 .72-1.0 3.55-3.93 10.3-11.3 11.5-12.5 GSD (m) 1000 1000 1000 1000 1000 Scene size (km) Revisit interval 3000 x 6000 2/day at equator, 4/day at mid-latitudes GSD (m) 120 TIROS / AVHRR Orbit The TIROS satellites have a circular, polar, sun-synchronous orbit, with an altitude of approximately 840 km and an inclination of 98.7=B0 to 98.9=B0. NOAA maintain at least two operational satellites in complementary orbits, with one crossing the equator at local solar times of approximately 0730 and 1930, and the other at 0230 and 1430. By convention, the even-numbered satellites cover the 'morning orbit' (0730) and the odd-numbered satellites the 'afternoon orbit' (1430). The Advanced Very High Resolution Radiometer is a four (AVHRR/1) or five (AVHRR/2) channel passive scanning radiometer. It has one visible channel, one near-infrared, one middle-infrared, and one/two far-infrared channels. The nominal ground resolution is about 1 km. The extra channel of the AVHRR/2 (Channel 5) affords improved atmospheric correction of sea and land surface temperatures.

Links:

• Metadata link

Temporal Extent:

Start: 1986-07-01T00:00:00.000Z

Spatial Extent:

Minimum Bounding Rectangle: -35 -15 90 90

SCIOPS Short Name: EURIMAGE_AVHRR Version ID: Not provided Unique ID: C1214606060-SCIOPS