IKONOS Data Guide

The IKONOS data are commercial data, owned by Space Imaging Corp. These data have been licensed to the NASA Stennis Space Center Scientific Buy Project for use in NASA-affiliated research. EOS-WEBSTER has agreed to distribute these data to authorized users, in support of the NASA Large-scale Biosphere-Atmospere Experiment in Amazonia (LBA). These may only be distributed to qualified users who demonstrate an affiliation to NASA, through employment or contract, and these data may only be used for those projects which the user has the defined NASA affiliation.

If you would like to receive IKONOS data, you must first complete the EOS-WEBSTER User Registration form and then complete the IKONOS registration form. The EOS-WEBSTER user support staff will confirm your qualification as an IKONOS user and will add you to our database for access to these data. This confirmation will take up to one business day or less, and you will be notified via e-mail when you have been confirmed.

By receiving IKONOS data you are agreeing not to provide access to other individuals who are not qualified to access these data. Additionally, you must read and agree to the terms and conditions of the Space Imaging End User License Agreement (EULA), which you can view from either the IKONOS page or the IKONOS section of the User Registration form. A copy of this EULA will be provided when you order IKONOS data.

Users of these data are requested to acknowledge the NASA LBA-Ecology Program, the NASA Scientific Data Buy Project, and The University of New Hampshire Earth Science Information Partner (EOS-WEBSTER).

If you have any questions regarding the data policy for IKONOS data or if you are unsure if you qualify for access to these data, please contact the EOS-WEBSTER user support staff.

Please Note: The NASA Science Data Purchase (SDP) program, through which all IKONOS on EOS-WEBSTER was obtained, has ended. As a result, no new IKONOS imagery will be available. More information on the SDP closure.

IKONOS satellite imagery data have been requested from the NASA Scientific Data Purchase Program in support of research for the Large-scale Biosphere-Atmosphere Experiment in Amazonia (LBA). EOS-WEBSTER is providing these IKONOS data to LBA researchers and affiliated NASA researchers/employees in agreement with the Space Imaging End User License Agreement (EULA). Data are either currently available or will be made available when received for two types of LBA Ecology study sites: 1) Eddy Flux Tower Sites and 2) Land Use Field Sites. At present, thirty-four (34) IKONOS images have been acquired at 14 eddy-flux tower sites, with multiple images of some tower sites. In addition, fifty-three (53) images requested for the Land Use Field Sites are currently in the EOS-WEBSTER holdings. Thirty-Four (34) additional images have also been acquired from the NASA Science Data Buy program that are not part of the originally requested LBA images. All images will be shared among all LBA teams following the data-sharing guidelines of the EULA.

The Large-scale Biosphere-Atmosphere Experiment in Amazonia is an international research initiative lead by Brazil with strong U.S. (NASA) participation. LBA is designed to create a new knowledge needed to understand the climatological, ecological, biogeochemical, and hydrological functioning of Amazonia, the impact of land-use change on these functions, and the interactions between Amazonia and the Earth System.

The LBA program is organized in six general areas: physical climate, carbon storage and exchange, biogeochemistry, atmospheric chemistry, land surface hydrology and water chemistry, land-use and land-cover change.

The research objective of LBA is to answer the key scientific questions posed above. Scaling issues are of central importance to accomplishing this goal. Phenomena such as organic-matter decomposition, plant physiology and photosynthesis, plant-community succession, and large-scale patterns of fire, land use, and land abandonment must be understood and integrated. To this end, data are being collected at a variety of scales, from short-term point measurements of carbon and water fluxes, to forest-stand measurements, to remote sensing over the region. In addition, new models are being developed that integrate across biological, temporal, and spatial scales.

In addressing the issues of scaling, two key science questions arise: How important is fine-scale heterogeneity to large-scale questions? How do we interpret relatively coarse-resolution remote sensing data in light of known fine-scale heterogeneity? IKONOS data will help to bridge the gap between currently available remote-sensing data and the fine-scale spatial heterogeneity on the ground.

Images of the following eddy-flux tower sites are available. Images representing multiple dates are noted, and additional acquisition dates are anticipated for distribution to LBA scientists and NASA research affiliates.

Location of Tower Site Images
Tower Site Name	Country	Lat., Center (dec. deg.)	Lon., Center (dec. deg.)	~Area (km2)	Aquisition Date
Aguas Emendadas	Brazil	-15.5494	-47.5997	49	06/23/2000
Aguas Emendadas	Brazil	-15.5494	-47.5999	50	06/23/2001
Aguas Emendadas	Brazil	-15.5460	-47.5964	124	06/01/2001
Brasilia East	Brazil	-15.6735	-47.9383	124	06/01/2001
Brasilia West	Brazil	-15.6282	-48.0242	124	06/01/2001
Caxiuana	Brazil	-1.7481	-51.4535	49	06/07/2000
Caxiuana	Brazil	-1.7482	-51.4535	49	09/03/2001
Cerrado	Brazil	-21.66670	-47.6165	49	05/29/2000
Cerrado	Brazil	-21.6667	-47.6165	49	05/29/2001
Fazenda Nossa Senhora	Brazil	-10.7617	-62.3571	49	08/02/2000
Fazenda Nossa Senhora	Brazil	-10.7617	-62.3569	49	08/02/2001
IBGE Campo Sujo	Brazil	-15.9521	-47.8694	49	05/29/2000
IBGE Campo Sujo	Brazil	-15.9521	-47.8693	50	05/29/2001
Jaru Tower	Brazil	-10.0781	-61.9329	110	04/06/2000
Jaru Tower	Brazil	-10.0781	-61.9329	49	05/17/2000
Jaru Tower	Brazil	-10.0779	-61.9329	48	05/28/2001
Manaus 1	Brazil	-2.5892	-60.1147	49	07/22/2000
Manaus 1	Brazil	-2.5892	-60.1147	49	08/02/2001
Manaus 2	Brazil	-2.6090	-60.2092	49	08/24/2000
Manaus 2	Brazil	-2.6091	-60.2093	49	10/07/2001
Santarem Kilo 67	Brazil	-2.8569	-54.9587	49	06/21/2000
Santarem Kilo 67	Brazil	-2.8569	-54.9568	49	11/03/2001
Santarem Kilo 83	Brazil	-3.0169	-54.9706	49	08/29/2000
Santarem Kilo 83	Brazil	-3.0272	-54.9706	33	11/14/2001
Santarem Kilo 83	Brazil	-3.0169	-54.9706	49	11/19/2001
Santarem Kilo 83	Brazil	-3.0597	-54.9703	26	08/29/2000
Santarem Kilo 83	Brazil	-3.0618	-54.9705	24	07/05/2002
Santarem Pasture	Brazil	-3.0201	-54.8885	49	06/13/2000
Santarem Pasture	Brazil	-3.0201	-54.8883	49	07/27/2001
Sinop Mato Grosso	Brazil	-11.4124	-55.3246	49	04/30/2000
Sinop Mato Grosso	Brazil	-11.4124	-55.3246	49	05/19/2001
Sinop Mato Grosso	Brazil	-11.4122	-55.3250	49	07/05/2002
Sugarcane	Brazil	-21.1004	-48.0665	49	06/12/2000
Sugarcane	Brazil	-21.1004	-48.0667	51	06/12/2001

The following table lists the images that have been requested and approved by the NASA Scientific Data Purchase Program. Additional scenes are still anticipated, as well as multiple dates of the ones listed below. Check back often to see the latest offering of these data. In addition to the sites listed below, several more images are being requested from NASA, but have not yet been approved. These images will be added to the list below once they are approved for acquisition. Please note that Lat./Lon. centers for the images are estimates. A particular site may have multiple images representing a portion of the originally requested area.

Location of Requested Land Use Field Sites
Land Use Study Site Name	Country	Lat., Center (dec. deg.)	Lon., Center (dec. deg.)	~Area (km2)	Aquisition Date
Altamira East	Brazil	-3.2397	-52.2140	171	10/14/2000
Altamira West	Brazil	-3.2397	-52.3047	162	10/14/2000
Alto Paraiso 1	Brazil	-9.6887	-63.1691	45	07/25/2002
Alto Paraiso 2	Brazil	-9.4602	-63.3225	51	07/14/2002
Alto Paraiso 3	Brazil	-9.6533	-63.2685	50	07/17/2002
Apeu	Brazil	-1.3054	-47.9733	49	07/10/2001
Cangussu	Brazil	-9.9776	-50.0070	49	07/07/2002
Cauaxi	Brazil	-3.7534	-48.2993	92	11/02/2000
Cauaxi	Brazil	-3.7536	-48.2995	92	06/18/2002
Cauaxi C	Brazil	-3.6334	-48.4447	49	07/07/2002
Cauaxi R	Brazil	-3.7283	-48.4001	28	08/09/2002
Cauaxi R	Brazil	-3.7283	-48.4001	28	08/20/2002
Cauaxi R	Brazil	-3.7283	-48.4001	28	08/23/2002
Ecuador 1 East	Ecuador	0.1535	-76.8272	24	01/13/2002
Ecuador 1 West	Ecuador	0.1533	-76.8803	77	01/05/2002
Ecuador 2 East	Ecuador	0.1347	-76.2314	154	01/10/2002
Ecuador 2 West	Ecuador	0.1347	-76.2475	152	02/15/2002
Ecuador 3 East	Ecuador	-0.2519	-76.8655	146	10/25/2000
Ecuador 3 West	Ecuador	-0.2519	-76.9245	35	10/25/2000
Ecuador 4	Ecuador	-0.2667	-76.5454	161	08/26/2001
Ecuador 4 East	Ecuador	-0.2667	-76.5026	34	08/26/2001
Ecuador 4 West	Ecuador	-0.2667	-76.5588	155	08/26/2001
Fazenda Nova Vida	Brazil	-10.1390	-62.7917	61	08/16/2001
Fazenda Vitoria	Brazil	-2.9647	-47.4103	74	07/29/2001
Igarape-Acu 2	Brazil	-1.1831	-47.5749	55	09/19/2001
Igarape-Acu 2	Brazil	-1.1631	-47.5833	92	10/22/2002
Ituqui, Brazil scene A	Brazil	-2.5932	-54.2738	212	07/27/2001
Ituqui, Brazil scene B	Brazil	-2.5932	-54.2154	101	08/07/2001
Ituqui, Brazil scene C	Brazil	-2.5932	-54.3314	227	08/07/2001
Ituqui, Brazil scene D	Brazil	-2.5932	-54.4340	261	10/06/2001
Ituqui, Brazil scene E	Brazil	-2.5931	-54.4935	35	10/09/2001
Machadinho	Brazil	-9.486	-62.0564	154	05/28/2001
Mato Grosso	Brazil	-9.5989	-55.9366	49	07/05/2002
Medicilandia	Brazil	-3.4429	-52.8900	36	10/17/2002
Mill Madeiras	Brazil	-2.8396	-58.7993	97	07/25/2002
Pastaza	Ecuador	0.0096	-77.1039	105	01/16/2002
Pilche	Ecuador	-0.2918	-76.2443	41	01/10/2002
Ponta De Pedras East	Brazil	-0.2519	-76.8656	146	12/19/2000
Ponta De Pedras West	Brazil	-1.3919	-48.8690	138	12/19/2000
Rohden East	Brazil	-10.5433	-58.4696	42	07/08/2002
Rohden Northeast	Brazil	-10.4823	-58.4696	69	10/01/2002
Rohden West	Brazil	-10.5434	-58.5482	36	07/08/2002
Rurpolis East	Brazil	-4.0718	-54.7754	40	07/08/2002
Rurpolis West	Brazil	-4.0718	-54.7945	41	07/05/2002
Santarem FLONA Tapajos	Brazil	-3.0328	-54.0606	77	07/05/2002
Sao Francisco do Para (East)	Brazil	-1.1332	-47.7703	176	07/18/2001
Sao Francisco do Para (East)	Brazil	-1.1335	-47.7748	191	12/30/2001
Sao Francisco do Para (West)	Brazil	-1.1333	-47.8167	53	07/18/2001
Sewaya	Ecuador	-0.1733	-76.1703	36	02/04/2002
Tiguano	Ecuador	-0.4514	-76.4808	36	01/13/2002
Tome-Acu (East)	Brazil	-2.3979	-54.2350	49.60	07/27/2001
Tome-Acu (West)	Brazil	-2.3979	-54.2350	152	07/27/2001
Zabalo	Ecuador	-0.2128	-75.4001	36	02/09/2002

Several additional images have been acquired from the NASA Science Data Buy program that are not part of the originally requested LBA images. These images generally pertain to other areas in South America or other NASA validation sites.

Location of Other Sites
Site Name	Country	Lat., Center (dec. deg.)	Lon., Center (dec. deg.)	~Area (km2)	Aquisition Date
Antofagasta	Chile	-23.10	-69.70	121.80	06/03/2001
Caraz (Scene A)	Peru	-8.99	-77.82	192.2	06/13/2001
Caraz (Scene B)	Peru	-8.99	-77.82	192.2	06/13/2001
Central Russia	Russia	57.27	91.60	132.7	06/23/2000
Crystal Lake, Alton, NH	USA	43.47	-71.37	128.2	09/07/2001
Guliya Shan	China	50.00	123.00	79.8	08/19/2000
Hong Kong (Scene A)	China	22.35	114.14	216.9	11/23/2000
Hong Kong (Scene B)	China	22.29	114.26	197.8	10/29/2000
Hong Kong (Scene C)	China	22.35	114.17	104.5	11/23/2000
Lgar (East)	Brazil	-1.10	-53.60	137	08/04/2001
Lgar (West)	Brazil	-1.10	-53.65	48.9	08/04/2001
Mandalgovi	Mongolia	46.02	106.34	125.4	05/19/2001
Munsan	Korea	37.90	126.73	63.7	08/02/2000
Nanjing	China	32.00	118.75	108.2	09/15/2000
Pulcallpa Ucayali (East)	Peru	-8.37	-74.43	156.5	06/26/2001
Pulcallpa Ucayali (West)	Peru	-8.37	-74.49	89.6	06/26/2001
Quiquijana	Peru	-13.86	-71.52	163.8	06/23/2001
Rocas Atoll Island	Brazil	-3.87	-33.82	25.0	06/30/2001
Sayani (Scene A)	Russia	53.10	93.26	176.8	08/17/2001
Sayani (Scene B)	Russia	52.97	93.26	175.8	08/17/2001
Sayani (Scene C)	Russia	53.10	93.11	171.2	08/17/2001
Sayani (Scene D)	Russia	52.97	93.11	170.9	08/17/2001
Sayani (Scene E)	Russia	53.10	93.40	168.1	08/20/2001
Shexian (Scene A)	China	29.87	118.40	109.7	11/06/2000
Shexian (Scene B)	China	29.87	118.40	109.7	11/06/2000
Sichuan (Scene A)	China	31.04	103.04	107.0	11/16/2000
Sichuan (Scene B)	China	31.13	103.26	66.8	10/03/2000
Sichuan (Scene C)	China	31.09	103.30	138.0	08/31/2000
Sichuan (Scene D)	China	31.02	103.15	213.8	11/08/2000
Stoddard, NH	USA	43.11	-72.08	26.8	06/27/2001
Suihua	China	46.72	127.27	89.0	06/27/2001
Tierras Bajas St. Cruz (East)	Bolivia	-17.15	-62.45	171.8	05/31/2001
Tierras Bajas St. Cruz (Middle)	Bolivia	-17.15	-62.54	172.6	05/28/2001
Tierras Bajas St. Cruz (West)	Bolivia	-17.15	-62.60	57.8	05/28/2001

IKONOS data consists of 4 multispectral bands and 1 panchromatic band. These images have been projected in Universal Transverse Mercator using the WGS-84 reference ellipsoid. These data have been orthorectified (see specifications below) and resampled using cubic convolution. The data have 11-bit radiometric resolution.

Each IKONOS scene is distributed in its original format, as received from Space Imaging. This consists of a directory containing 22 or more files. Each scene has four 4-meter multispectral bands and one 1-meter panchromatic band. The files are distributed as GeoTiff files. Each image band consists of 3 files which makeup the GeoTiff format: a band sequential (BSQ) file of the data, a world file for projection information, and a header file. Additionally, a metadata file for the scene is included, 2 jpeg browse images, and a copy of the Space Imaging End User License file. When you order a IKONOS data you will receive a directory for each scene. All scenes will be zipped prior to download. Each scene is between 60-120 MB.

If you plan on ordering several scenes, you may want to order via CD-ROM since the file sizes are rather large and download time may be significant.

Hurtt, G., X. Xiao, M. Keller, et al., 2003. IKONOS imagery for the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA), Remote Sensing of Environment 88: 111-127. Available online at www.sciencedirect.com

George Hurtt, Xiangming Xiao; Complex Systems Research Center, Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, New Hampshire, USA. Ph: 603.862.1792, Fax: 603.862.0188, Email: george.hurtt@unh.edu and xiangming.xiao@unh.edu.