Ascend Flood Risk:
Satellite-Driven Flood Intelligence for Insurance and Claims Operations

Flood events evolve hour by hour. Boundaries shift, water recedes from some areas while inundating others, and the difference between a total loss and a minor claim can be a few meters of elevation. But most flood risk workflows rely on modeled flood zones and post-event field inspections that arrive too late to drive timely decisions.

See the Flood as It Happens, Not Weeks After

Ascend's flood intelligence uses daily satellite capture from the EarthDaily Constellation to map flood extent in near real time. Underwriters, claims teams, and portfolio managers see where water actually is, not where models predict it should be, enabling faster response, more accurate damage assessment, and defensible claims decisions backed by satellite evidence.

Capabilities
Flood Intelligence Built on 
Daily Earth Observation

insurance-flood-ascend-user-interface-earthdaily
Near Real-Time Flood Extent Mapping
Daily satellite capture detects flooded areas as events unfold, mapping inundation levels as a flood's boundary evolves. This provides an objective, timestamped record of flood extent that supports emergency response prioritization, claims triage, and exposure assessment while events are still active.
SWIR-Enhanced Water Discrimination
EarthDaily's shortwave infrared (SWIR) bands provide sharper water/land discrimination than visible-spectrum sensors alone. This enables more accurate flood mapping in challenging conditions including areas with standing vegetation, turbid water, or mixed land-water boundaries where standard optical imagery struggles to define flood edges precisely.
Temporal Flood Progression Tracking
Daily revisit enables tracking of flood progression and recession over time, not just a single snapshot. This temporal record shows when specific properties or areas were inundated, how long water persisted, and when recession occurred, creating an evidence base for duration-dependent damage assessment.
Portfolio Flood Exposure Analysis
Flood extent data integrates with Ascend's multi-peril portfolio analytics, enabling carriers to assess actual flood impact across their book of business during and after events. Combined with Ascend's geocoding consensus algorithm, flood exposure is mapped against validated property locations rather than approximate addresses.

Real-World Impact

Use Case:
E&S Carrier Capturing Retreating Market Share

 

Challenge:
A property insurer receives thousands of claims following a major river flood event. Field adjusters cannot access affected areas for days or weeks. Without objective evidence of which properties were actually inundated, the claims team must process submissions based on policyholder declarations and modeled flood zones, leaving the carrier exposed to overpayment on properties outside the true flood boundary and delayed payment on legitimate claims.

Solution:
Ascend's flood extent mapping provides daily satellite-derived inundation data throughout the event. The claims team overlays flood boundaries against the portfolio's geocoded property locations to identify which insured properties fall within confirmed flood extent, which are outside, and which are in marginal zones requiring field follow-up. The temporal record shows when flooding reached specific areas and when water receded.

Outcome:
The carrier triages claims within days of the event rather than weeks, prioritizing field adjusters for high-value properties within confirmed flood zones. Properties clearly outside satellite-confirmed flood boundaries are flagged for further review, reducing overpayment risk. Legitimate claims in confirmed inundation areas are fast-tracked, improving policyholder experience during a high-stress event.

Use Case:
Underwriting Flood Risk with Satellite Evidence

Challenge:
An E&S carrier writing property coverage in flood-prone coastal markets relies on FEMA flood zone designations and third-party flood scores for underwriting. But FEMA maps are updated infrequently and do not reflect recent development, drainage changes, or shifting flood patterns. The carrier suspects it is both overpricing low-risk properties within outdated flood zones and underpricing properties in areas where actual flood exposure has increased.

Solution:
Ascend supplements traditional flood zone data with satellite-derived evidence of actual historical flood extent. By comparing past flood events against property locations, the underwriting team identifies properties where modeled flood risk diverges from observed flood behavior. Properties within FEMA zones that have never experienced satellite-confirmed inundation are distinguished from properties outside FEMA zones that have flooded repeatedly.
Outcome:
The carrier refines flood pricing using observed flood evidence alongside modeled risk, improving risk selection in both directions. Properties with lower actual flood exposure than FEMA zones suggest become competitive opportunities. Properties with higher observed exposure than models predict are priced appropriately or declined.

FAQs

Ascend's flood intelligence uses daily satellite capture from the EarthDaily Constellation to map flood extent in near real time. It provides an objective, satellite-derived record of where flooding has occurred, how boundaries have evolved, and which properties fall within confirmed inundation zones. This data supports claims validation, portfolio exposure assessment, and underwriting decisions.
Flood extent mapping uses imagery from the EarthDaily Constellation at 5m resolution.
FEMA flood zones are modeled designations based on historical data and hydrological analysis, updated infrequently. Ascend's satellite-based flood extent shows where water actually is during a specific event. The two are complementary: FEMA zones support pre-event risk assessment, while satellite detection provides real-time and post-event evidence of actual inundation.
Daily satellite revisit enables temporal tracking of flood progression and recession. By comparing flood extent across consecutive days, Ascend can show when a specific area was first inundated and when water receded.
Flood extent data feeds into Ascend's multi-peril portfolio analytics alongside wildfire, wind, hail, and other hazard layers. All data references the same geocoding baseline, enabling cross-peril exposure analysis from a single platform.

Bring Satellite-Driven Flood Intelligence to Your Portfolio

Discover how Ascend's flood capabilities can accelerate claims response, improve exposure assessment, and strengthen underwriting in flood-prone markets.


  • Assess your portfolio against satellite-derived flood extent from recent events
  • Compare satellite evidence against modeled flood zones for your book of business
  • Evaluate claims workflow acceleration with near real-time inundation data
  • See multi-peril integration combining flood, wildfire, and wind analytics in one platform