# Presentation: 662436

## Landsat Pilot

**October 16, 2007**
**Presented By:**
**Kristi Kline, PMP**
**U.S. Geological Survey, National Center for EROS**
**Sioux Falls, SD**

## Agenda

**Pilot Expectations**
**Changes to Systems**
**Statistics and User Feedback**
**Next Steps**

## Pilot Expectations

**Mandatory Registration**
- Users can browse, but must register to download or order pilot data
**Better user demographics**
- Added categories of use
- Added Federal use question
- “If you selected Commercial, Education, or USGS Business Partner are you working on behalf of a U.S Federal Agency?”
**System Requirements**
**Acceptability of the product recipe**
**User demand for web-enabled products**
- Demand for recent data
- Demand for older data (back to 2003)
**Other customer suggestions**

## Changes to Systems

## Changes to Systems

## Statistics – June 4 through Sept 28

**5.951**** products (1.324TB) downloaded by ****757**** unique users**
**Only ****1**** request for data on media (cost of $50)**
**24%**** of all unique users indicate they are part of a Federal Agency or are “working on behalf of a U.S. Federal Agency”**

**Notes:**
In FY07 (as of 8/10), only 1,232 Landsat 7 SLC-off products sold 
2,917 total sold including composite products (off-on, off-off, segment)
In FY06 ... 1,201 SLC-off (3,177 total inc. composite products)

## Scenes Available

## Pilot Downloads

## Data Downloaded

## Landsat Data Distributed from EROS

## Downloads vs. Sales

## Age of Downloads

## Age of Downloads

## User Demographics

## Other Uses Reported

| # of Scenes Received | User Input | # of Scenes Received | User Input |
| --- | --- | --- | --- |
| 1 | Acedemic | 2 | Archaeology |
| 54 | Boating | 8 | Sensor Calibration |
| 2 | Geographic Info Systems | 1 | Home Interest in Maps, etc. |
| 1 | School Research  | 6 | Compare with L4/5 Uses |
| 240 | Insurance | 7 | Land Change Assessment |
| 1 | Local Govt | 2 | Minerals |
| 6 | Area of Lost Person | 16 | Recreation |
| 14 | Remote Sensing Study | 33 | Eval use with EO1-ALI |
| 6 | Sugar beet research-acad | 6 | Teaching |
| 13 | algorithms & models | 1 | Tourism map |
| 1 | Evapotranspiration map | 2 | Wildlife management |
| 91 | Other – test or unk |  |  |

## Customer Demographics

## Customer Demographics

## Cloud Cover of Sold Data

## Amount of Landsat 7 Archive Used

**90% of orders are for data less than 30% cloud cover**
**L7 SLC-on:  52.8% of total archive is less than 30% **
**L7 SLC-off:  60.7% of total archive is less than 30%**

## User Feedback

**General Satisfaction with free data**
**Expansion of Cloud Cover**
**Inclusion of Landsat 5 TM data **
**Comment from Fire Response Teams on usefulness of downloads and EarthNow!**

## Next Steps

**Expand depth of current data set (US and Territories)**
- More than 10% cloud cover
- Expansion to 20% started on Oct 2
- May expand to 30%
- Include Landsat 7 ETM+ SLC-on, Landsat 4/5 TM,   Landsat 1-5 MSS
**Expand breadth of current data set**
- Expand geographically
- Begin Expansion globally with Landsat 7 SLC-off in Nov/Dec Timeframe
**Expand both**
- Only process some data and offer on-demand standard recipe products for all SLC-off data
- Expected to open entire SLC-off U.S. archive in FY08 for on-demand requests

## Next Steps

**Change Standard Recipe**
- Recipe
- Pixel size:		15m/30m/60m
- Media type:		Download (no cost), CD/DVD ($50)
- Product type:		L1T (terrain-corrected)
- Output format:	GeoTIFF
- Map projection:	UTM
- Orientation:		North up
- Resampling:		Cubic convolution
**3-band composite, Full Resolution, Geo-coded “Browse” (8-bit, JPEG 2000)**

**Notes:**
How long to we keep data on spinning disk?
Should we archive the product or just reprocess when requested?
Statistics for data in a cost recovery model may not be the same as a free model
Will users want data with more clouds if it is free?
Terrain correcting a cloudy, gapped scene may not be feasible.  Do we fall back to a L1G in those cases?

## Some Issues to be Addressed	

**What to do with the previously processed data**
- 14.25/28.5/57m pixel size
**How long to keep data on-line**
- How much can Landsat afford?
- What is optimal?
**How to implement a full resolution browse**