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BREQ_FAST Request Manual  

2009-04-09 13:26:33|  分类: 数据 |  标签: |举报 |字号 订阅

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NAME

BREQ_FAST - Batch REQuests, FAST

AVAILABILITY

breqfast
Incorporated Research Institutions for Seismology
Data Management Center
1408 NE 45th Street, Seattle WA 98105
(206)547-0393, FAX:(206)547-1093

DESCRIPTION

Batch access to the IRIS DMC archive can be obtained by electronically mailing a specially formatted file to the IRIS DMC in Seattle. These are BREQ_FAST files and provide a base level access to the DMC needed by any user. These requests are not interactive in that you simply send the file to the DMC and the DMC will return either full SEED data or a dataless SEED file matching the request depending on where the e-mail was sent. For users that do not have access to electronic mail facilities, the IRIS DMC will process tapes containing images of BREQ_FAST files in simple ASCII format.

FILE FORMAT

The format of the file is as follows:

.NAME
.INST
.MAIL
.EMAIL
.PHONE
.FAX
.MEDIA:
.ALTERNATE MEDIA:
.ALTERNATE MEDIA:
.LABEL
.SOURCE ---
.HYPO | optional
.MAGNITUDE ---
.QUALITY
.END
request line-1
request line-2
.
.
.
request line-n

!!!BE SURE TO LEFT JUSTIFY EACH TOKEN LINE OR YOUR REQUEST COULD BE REJECTED.!!!

The format of each line is as follows:

             STARTING TIME        ENDING TIME
STA NN YYYY MM DD HH MM SS.T YYYY MM DD HH MM SS.T #_CH CH1 CH2 CHn LI

where:

 STA  is the station
NN is the network code or "virtual network"
YYYY is the year - 2 digit entries will be rejected!
MM is the month
DD is the day
HH is the hour
MM is the minute
SS.T is the second and tenths of seconds
#_CH is the number of channel designators in the immediately following list
CHn is a channel designator that can contain wildcards
LI is location identifier (optional)
(See the DMS Electronic Newsletter article "Location Identifiers"
for more information about how these identifiers are used.)

Individual lines in the request can not exceed 100 characters.

Valid selections for media at the present time, in the order of preference are:

Electronic (FTP)
EXABYTE - 2 gigabyte
EXABYTE - 5 gigabyte
DAT (digital audio tape)
DLT
DVD*

* When requesting DVD-R media, there may be a delay in shipment of data

Please be sure to specify your first, second and third choices for the output media.

The LABEL entry will be used to name the files containing your SEED volumes whenever they are small enough to transfer with ftp. Your SEED volumes will also include this LABEL internally so they can be distinguished regardless of filename. This capability can help you distinguish data you receive for different projects and aids communication with regard to a specific request.

 

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