Скачать презентацию I-COADS Data and Products Steven J Worley Scott Скачать презентацию I-COADS Data and Products Steven J Worley Scott

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I-COADS Data and Products Steven J. Worley Scott D. Woodruff Richard W. Reynolds Brussels, I-COADS Data and Products Steven J. Worley Scott D. Woodruff Richard W. Reynolds Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products

Topics • Background • Status • Plans Brussels, Belgium 17 -22 Nov. 2003 CLIMAR Topics • Background • Status • Plans Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 2

Background • Three-way collaboration since 1981 • Partner organizations and PI’s – NOAA/NCDC, (Dick Background • Three-way collaboration since 1981 • Partner organizations and PI’s – NOAA/NCDC, (Dick Reynolds, Joe Elms) – NOAA/CDC, (Scott Woodruff) – NSF/NCAR, (Steven Worley) • U. S. Government and Academic @ start • Now, International-COADS (I-COADS) Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 3

Current Status, Release 2. 0 RT Archive 1998 -2002 185 Million Observation Records DM Current Status, Release 2. 0 RT Archive 1998 -2002 185 Million Observation Records DM Archive 1784 -1997 Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 4

Current Status, Release 2. 0 100 K per year, 1854 -1885 WWI and WWII Current Status, Release 2. 0 100 K per year, 1854 -1885 WWI and WWII Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 5

Data Availability • Observations – NCAR • 1784 - 2002 binary formatted archive is Data Availability • Observations – NCAR • 1784 - 2002 binary formatted archive is online • ASCII format available by online request – Select region – Select time – Select variables – Select quality flags and options – Delayed mode delivery via pull FTP Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 6

Data Availability, Observations @ NCAR http: //dss. ucar. edu/pub/coads/forms/ Brussels, Belgium 17 -22 Nov. Data Availability, Observations @ NCAR http: //dss. ucar. edu/pub/coads/forms/ Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 7

Data Availability • Observations – CDC • Derived from NCEP GTS • 1991 -current, Data Availability • Observations – CDC • Derived from NCEP GTS • 1991 -current, online, ASCII • Updated monthly • Only Basic Variables • Primary Usage – Extend I-COADS to near real-time http: //www. cdc. noaa. gov/coads/nrt. html Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 8

Data Availability • Monthly Statistics – 1°x 1°, 1960 - 1997 – 2°x 2°, Data Availability • Monthly Statistics – 1°x 1°, 1960 - 1997 – 2°x 2°, 1800 – 2002 – NCAR • Access equivalent to observations – Full binary format archive is online – ASCII format with subset selection capability • Very popular user interface Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 9

Data Availability, MSG @ NCAR http: //dss. ucar. edu/pub/coads/forms/ Brussels, Belgium 17 -22 Nov. Data Availability, MSG @ NCAR http: //dss. ucar. edu/pub/coads/forms/ Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 10

Data Availability • Monthly Statistics – CDC • I-COADS 1° and 2° net. CDF Data Availability • Monthly Statistics – CDC • I-COADS 1° and 2° net. CDF format files – Through 1997 now, to be updated through 2002 • 2° extension based on NCEP GTS – ASCII 1998 - current – Net. CDF 1991 - current http: //www. cdc. noaa. gov/coads_cdc_netcdf. shtml http: //www. cdc. noaa. gov/cdc/data. nmc. marine. html Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 11

Data Availability • Monthly Statistics – CDC, Live Access Server (LAS), Public Debut • Data Availability • Monthly Statistics – CDC, Live Access Server (LAS), Public Debut • Interactive interface • Database – CDC I-COADS net. CDF archive – To be updated through 2002 soon • visualize • subset variables, choose output file format • compare (difference) data grids http: //www. cdc. noaa. gov/coads-las/servlets/dataset Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 12

Data Availability, CDC LAS, Constraints Interface Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, Data Availability, CDC LAS, Constraints Interface Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 13

Data Availability, CDC LAS, Output Options Choose Option 2 Graphic Net. CDF 2 ASCII Data Availability, CDC LAS, Output Options Choose Option 2 Graphic Net. CDF 2 ASCII 2 Spreadsheet GIS Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 14

Data Availability, CDC LAS, 1° 01/1970 SST Median Brussels, Belgium 17 -22 Nov. 2003 Data Availability, CDC LAS, 1° 01/1970 SST Median Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 15

Data Availability, CDC LAS, 1°, SST Median, Jan. 1983 – Jan. 1989, Niño – Data Availability, CDC LAS, 1°, SST Median, Jan. 1983 – Jan. 1989, Niño – Niña difference Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 16

Data Availability • Advanced Products and Analyses – New Adaptive QC trimming • Monthly Data Availability • Advanced Products and Analyses – New Adaptive QC trimming • Monthly SST, 2°x 2°, 1800 -1997 • A few details – Authors: Tom Smith (NCDC) , Xiao-Wei Quan (CDC) – Observational outliers are trimmed according to a reference climatology that varies with the climate signal – See link for other details and publication references • Access from NCAR, binary or ASCII (subsets) http: //dss. ucar. edu/pub/coads/forms/msga. form. html Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 17

Data Availability, Adaptive QC SST Decembers 1970 -1997, 8 -2 S, 80 -88 W Data Availability, Adaptive QC SST Decembers 1970 -1997, 8 -2 S, 80 -88 W , Red = Trimmed Observations Original Trimming via fix climate 30 20 10 0 82 -83 Adaptive Trimming via varying climate 97 -98 30 20 10 0 Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 18

Data Availability • Advanced Products and Analyses – Extended Reconstructed SST and SLP • Data Availability • Advanced Products and Analyses – Extended Reconstructed SST and SLP • Authors Tom Smith and Dick Reynolds (NCDC) • Monthly SST, 2°x 2°, Global, 1854 -2002, continuing • Monthly SLP, 2°x 2°, Global, 1854 -1997 –Land Ocean • Access from NCDC, ASCII format http: //lwf. ncdc. noaa. gov/oa/climate/research/sst. html http: //www. ncdc. noaa. gov/oa/climate/research/slp/index. html Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 19

Plans • Transitioning archive to IMMA format – International Marine Meteorological Archive (IMMA) – Plans • Transitioning archive to IMMA format – International Marine Meteorological Archive (IMMA) – Why? • IMMA is an ASCII format – easier to use? • Gaining acceptance by WMO – JCOMM Expert Team for Marine Climatology • Encourage I-COADS data contributors to use it – Insures accuracy from data providers – Easier to grow I-COADS • Well documented, and proven successful – Project examples: CLIWOC, RT at NCDC, NCEP GTS Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 20

Plans, IMMA • Basic format concepts Core segment – fixed length + Historical data Plans, IMMA • Basic format concepts Core segment – fixed length + Historical data Original data attachments Working Principles • Core segment Ø All commonly used variables Ø Fixed length ASCII (108 characters) Ø Alone will be sufficient for most users • Original data attachments Ø Contains special fields not in Core Ø Can be used to improve, repair, and recreate Core Great format for: • an irreplaceable data archive • ensure easy software access (ascii based) http: /www. cdc. noaa. gov/coads/e-doc/imma/ Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 21 GTS data Special formats Aux. QC info.

Plans, Real-time data for I-COADS • Observations from NCDC – Features • Based on Plans, Real-time data for I-COADS • Observations from NCDC – Features • Based on NCDC GTS data stream • Web and FTP access • Pilot activation date: September 2004 – Fast access b/c database system • Will include the full historical archive – Preparation so far • Cross-checks NCDC GTS and NCEP GTS streams – show good agreement and mutual accuracy Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 22

Plans, Real-time I-COADS data • Steps beyond real-time data provision – Archive two GTS Plans, Real-time I-COADS data • Steps beyond real-time data provision – Archive two GTS data streams – Compute Monthly Statistics • Generate @ CDC – Lag time ~ 1 month • Benefit: – More complete records – Standard QC – Standard format • Currently not high priority Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 23

Plans, Future data Inclusions • Details given by Scott Woodruff in a presentation for Plans, Future data Inclusions • Details given by Scott Woodruff in a presentation for 150 th Celebration • Light overview here Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 24

Polish Baltic: 1961 - 90; 360 K Arctic Drift Stations: 1952 -76 US Navy Polish Baltic: 1961 - 90; 360 K Arctic Drift Stations: 1952 -76 US Navy Hourly: 1952 -64; 3 M UK Marine Data Bank: 1950 -79 Japanese Whaling Data: 1946 -84; 30 K Japanese Kobe (2003 ed. ): 1889 -1940; 3. 2 M U. S. Meteorological Journals: 1878 -94; 1. 8 M Arctic Norwegian Data: 1867 -1912; 125 K Fully digitized components to be added to I-COADS Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 25

Ukrainian Hydrometeorological: 1958 -85 Russian R/V Marine: 1936 -2002; 4 -6 M US Lightship Ukrainian Hydrometeorological: 1958 -85 Russian R/V Marine: 1936 -2002; 4 -6 M US Lightship Data: 1891 - recent German Data: 1887 -90; 30 K CLIWOC: 1750 -1850; 300 K Partly digitized components to be added to I-COADS Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 26

German Maury Collection: 1845 -67; 500 -750 K Undigitized component to be added to German Maury Collection: 1845 -67; 500 -750 K Undigitized component to be added to I-COADS Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 27

Plans, Future data Inclusions • Early access to new data sources – Availability before Plans, Future data Inclusions • Early access to new data sources – Availability before merge into I-COADS • Termed “add on” dataset – Features • Data are subjected to climate trimming • In an I-COADS format • Unique and important data – E. g. Kobe Observatory and CLIWOC data • From NCAR http: //dss. ucar. edu/datasets/ds 530. 0/ Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 28

Plans, Web Status and Developments • New “Data and Metadata Page” – New look Plans, Web Status and Developments • New “Data and Metadata Page” – New look • Organized by data products – Eliminated the CDC/NCAR/NCDC structure • I-COADS metadata – Software and documentation – Graphics and figures to show I-COADS inventories – Ship metadata – Pub 47 (1973 -1999) • Most products mentioned here are linked to this page. http: //www. cdc. noaa. gov/coads/products. html Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 29

Plans, Web Status and Developments • “Related Data and Resources” – Links to Projects Plans, Web Status and Developments • “Related Data and Resources” – Links to Projects and Organizations • VOSCLIM • CLIWOC • JCOMM – Links to Associated Data • JISAO Climatologies (Mitchell UW) – 1° global • Extended Reconstructed Analyses (NCDC) Grow this area, link more projects and data http: //www. cdc. noaa. gov/coads/related. html Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 30

Conclusions I-COADS is international 1998 -2002 update available now Many access points and formats Conclusions I-COADS is international 1998 -2002 update available now Many access points and formats New analyses are available New format (IMMA) will be future standard I-COADS real-time observations – coming next year Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 31

Thanks! Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 32 Thanks! Brussels, Belgium 17 -22 Nov. 2003 CLIMAR II, I-COADS Data and Products 32