Attachment 2.pdf

Salient Characteristics

1. Provide one primary measurement system at Joint Base Elmendorf-Richardson, Alaska that meets the following specifications:

a. Measure wind speed (0 knots to at least 110 knots in 1 knot increments) and true compass direction (0 to 360 degrees in 1 degree increments) from surface to at least 10000 feet above ground level over a single geographical point.

b. Vertical wind data resolution must be no greater than 300 feet for measurements between

2000 feet and the maximum measurement height above ground level.

c. Vertical wind data resolution must be no greater than 100 feet between surface and 2000 feet above ground level.

d. Wind data reporting interval must not exceed 6 minutes.

e. Measure atmospheric temperature and dew point temperature from surface to at least 30000 feet above ground level.

f. Vertical temperature and dew point temperature data resolution must not exceed: 200 feet from surface to 1500 feet; 350 feet from 1500 feet to 6500 feet; 850 feet from 6500 feet to maximum retrieval height.

g. Vertical temperature and dew point temperature reporting interval must not exceed 6 minutes.

h. Equipment must operate using standard 120V commercial power.

i. Equipment must be able to continue operation in the event of commercial power loss.

Equipment will automatically transfer to on-board emergency gasoline generator in the event of commercial power loss, notify operator via data display alarm (both visual and audio) and must remain fully operational for at least 24 hours without commercial power or re-fueling of generator.

j. Equipment must be capable of communicating data via local area network Ethernet cable, wireless cellular data modem, or single-mode fiber optic data cable to geographically separated data viewing location.

k. Equipment must be mobile. A mobile system is defined as disassembly, transport (not included in time requirement), and reassembly of system to full operational capability within

1 hour by 2 military weather technicians utilizing operator instructions and a standard half-ton pickup truck).

l. Equipment must provide continuous operation and measurement of required parameters regardless of atmospheric conditions, to include rain, snow, freezing rain, fog, clouds, thunderstorms, hail, or clear skies.

m. Equipment must operate properly and without operator intervention in ambient surface temperatures ranging from -30 to 100 degrees Fahrenheit, sustained surface wind speeds up to 60 knots (gusts up to 80 knots), accumulated snowfall depths up to 36 inches, and ice accretion on all exposed surfaces up to 2 inches in thickness (assuming no mechanism is in place to prevent ice accretion on critical surfaces).

n. Wind speed measurement accuracy must be within 2 knots of real-world wind speed at any given height. Wind direction measurement must be within 10 degrees of real-world wind direction at any given height (within 15 degrees for wind speeds below 10 knots).

o. Temperature and dew point temperature measurements must be within 2 degrees Fahrenheit of real-world temperature and dew point temperature at any given height.

p. Indicated retrieval height of wind speed, wind direction, temperature, and dew point temperature measurements must be within 100 feet of real-world parameter height.

2. Provide one supplemental measurement system at Joint Base Elmendorf-Richardson, Alaska that meets the following specifications:

a. Measure wind speed (0 knots to at least 85 knots in 1 knot increments) and true compass direction (0 to 360 degrees in 1 degree increments) from surface to at least 2000 feet above ground level over one geographical point.

b. Vertical wind data resolution must be no greater than 300 feet from the surface to 2000ft above ground level.

c. Wind data reporting interval must not exceed 6 minutes.

d. Equipment must operate using standard 120V commercial power.

e. Equipment must be capable of communicating data via local area network Ethernet cable, wireless cellular data modem, or single-mode fiber optic data cable to a geographically separated data viewing location.

f. Equipment must be mobile. A mobile system is defined as disassembly, transport (not included in time requirement), and reassembly of system to full operational capability within

1 hour by 2 military weather technicians utilizing operator instructions and a standard half-ton pickup truck.

g. Equipment must provide continuous operation and measurement of required parameters regardless of atmospheric conditions, to include rain, snow, freezing rain, fog, clouds, thunderstorms, hail, or clear skies.

h. Equipment must operate properly and without operator intervention in ambient surface temperatures ranging from -30 to 100 degrees Fahrenheit, sustained surface wind speeds up to 60 knots (gusts up to 80 knots), accumulated snowfall depths up to 36 inches, and ice accretion on all exposed surfaces up to 2 inches in thickness (assuming no mechanism is in place to prevent ice accretion on critical surfaces).

i. Wind speed measurement accuracy must be within 2 knots of real-world wind speed at any given height. Wind direction measurement must be within 10 degrees of real-world wind direction at any given height (within 15 degrees for wind speeds below 10 knots).

j. Temperature and dew point temperature measurements must be within 2 degrees Fahrenheit of real-world temperature and dew point temperature at any given height.

k. Indicated retrieval height of wind speed, wind direction, temperature, and dew point temperature measurements must be within 100 feet of real-world parameter height.

3. Provide a data viewing capability that meets the following specifications:

a. Display real-time vertical profiles of wind speed, wind direction, temperature, and dew point temperature measurements at an office location geographically separated from the 2 outdoor measurement locations. The office location will have access to commercial internet.

b. Provide wind speed and wind direction data display option in the form of time series of vertical wind profiles. Vertical profile displays for each of the 2 geographic measurement locations will be viewable side-by-side in real-time on 1 window display. Wind barbs will be color coded in increments of 10 knots, with applicable legend visible on the same display.

Users will be able to hover the computer cursor over each individual data point in the vertical profile to show numerical values for wind speed and direction at that point. Users must be able to define the data display period, ranging from the last 1 hour up to the previous 24 hours. Users must have the ability to define the minimum and maximum height for the data display, ranging from the surface to the maximum retrieval height of the equipment. Data retrieval heights will be displayed in feet above ground level and mean sea level from the current location of the mobile systems.

c. Provide real-time wind speed, wind direction, temperature, and dew point temperature data display option in the standard Skew-T/Log-P format. This data must also be immediately viewable in the universal Rawinsonde Observation (RAOB) program.

d. Compute and display common meteorological indices based on measured wind and temperature data to include Bulk Richardson Number, Bulk Shear Value, Cap Strength, Convective Condensation Level, Convective Inhibition, Convective Instability, Energy

Helicity Index, Energy Index, Equilibrium Level, Freezing Level, K Index, Lifted

Condensation Level, Level of Free Convection, Lifted Index, Fog Stability, Showalter Index, Total Totals, Convectively Available Potential Energy (Surface and Most-Unstable), Severe

Weather Threat Index, Tropopause Level, Low Level Temperature Inversion Height.

e. Customizable and automated wind shear alerts will produce a visual and audible alert on the data display when wind shear conditions, as defined by the International Civil Aviation

Organization, are met at the primary measurement system location, but will also allow customization of alert criteria and thresholds, to include user-defined wind direction and wind speed differences across a user-defined height range. Wind shear conditions will be determined relative to single or multiple runway headings defined by the user. A viewable events log of previous and active wind shear alerts over the past 120 hours will be made available to the user.

f. All wind speed, wind direction, temperature, dew point temperature, and wind shear alert events log data must be archived on the local workstation hard drive, time stamped, and retrievable by the user for no less than 72 hours after initial data reporting time.

g. Ensure system hardware and software compliance with U.S. Air Force cybersecurity policies in order to attain and maintain Authority to Connect and/or Authority to Operate within U.S.

Air Force network infrastructure.